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All Enties in the ChemThes Database	Structure	Reactions Forming	Reactions Using	Wikipedia	NIST
(KSO3)2NO	(KSO₃)₂NO		1	Wikipedia	NIST
H2C=C=CH2	H₂C=C=CH₂			Wikipedia	NIST
10034-85-2	HI	12	13	Wikipedia	NIST
10035-10-6	HBr	22	20	Wikipedia	NIST
122-39-4		1	1	Wikipedia	NIST
1333-74-0	H₂	139	158	Wikipedia	NIST
7440-37-1	Ar	1	6	Wikipedia	NIST
75-05-8	CH₃CN	6	5	Wikipedia	NIST
7727-37-9	N₂	56	20		NIST
7784-42-1	H₃As	7	1	Wikipedia	NIST
A (adenine)	Adenine A		1	Wikipedia	NIST
A (alanine)		2	3	Wikipedia	NIST
ABS	ABS	1		Wikipedia	NIST
Absorbing oil	Absorbing Oil	1			NIST
Ac	Ac			Wikipedia	NIST
(Ac)2O	(CH₃CO)₂CO	4	12	Wikipedia	NIST
acac		2	2	Wikipedia	NIST
acac-			1	Wikipedia	NIST
Acetal (generic)		3	1	Wikipedia
Acetal, cyclic (generic)		1	1	Wikipedia
Acetaldehyde	CH₃CHO	13	20	Wikipedia	NIST
Acetaldehyde enolate		1		Wikipedia	NIST
Acetaldehyde, protonated		1			NIST
Acetaldol		1	2		NIST
Acetamide	CH₃CONH₂	4	1	Wikipedia	NIST
Acetamide/dimethyl ether complex		1			NIST
Acetaminophen				Wikipedia	NIST
Acetanilide		2	1	Wikipedia	NIST
Acetate ester (generic)	CH₃COOR	2	3
Acetate ion	[CH₃COO]^–	6	10	Wikipedia	NIST
Acetic acid	CH₃COOH	32	27	Wikipedia	NIST
Acetic acid, aqueous	CH₃COOH(aq)	3		Wikipedia	NIST
Acetic acid, dimer		1		Wikipedia	NIST
Acetic acid, protonated		1			NIST
Acetic acid, sodium salt	CH₃COONa	4	2	Wikipedia	NIST
Acetic anhydride	(CH₃CO)₂CO	4	12	Wikipedia	NIST
Acetone		15	19	Wikipedia	NIST
Acetone azine		1	1		NIST
Acetone cyanohydrin		1	1		NIST
Acetone enolate ion			2	Wikipedia	NIST
Acetone peroxide		1	1	Wikipedia	NIST
Acetone, protonated		1			NIST
Acetone/methanol complex		1			NIST
Acetonitrile	CH₃CN	6	5	Wikipedia	NIST
Acetonitrile anion	N≡C–CH₂^–		1	Wikipedia	NIST
Acetonitrile, protonated		1			NIST
Acetophenone		3	2	Wikipedia	NIST
Acetophenone lithium enolate			2		NIST
Acetophenone, 4-nitro			1		NIST
Acetophenone, alpha-amino 4-nitro		1	1		NIST
Acetophenone, alpha-bromo-4-nitro		1	1		NIST
Acetyl cation	[CH₃CO]⁺	1	13		NIST
Acetyl chloride	CH₃COCl		11	Wikipedia	NIST
Acetyl coenzyme A			1	Wikipedia	NIST
Acetyl hydroperoxide	CH₃COOOH	3	4	Wikipedia	NIST
Acetyl-CoA			1	Wikipedia	NIST
Acetylacetone		2	2	Wikipedia	NIST
Acetylacetone anion			1	Wikipedia	NIST
Acetylene	HC≡CH	9	25	Wikipedia	NIST
Acetylene (generic)	R–C≡C–R	3	10
Acetylene, terminal hydrogen (generic)	R–C≡C–H	1	3
Acetylformic acid		1		Wikipedia	NIST
Acetylide (hydrogen) anion	HC≡C^–	1	2	Wikipedia	NIST
Acetylide anion (generic)	R–C≡C^–	1	2	Wikipedia
Acetylide dianion	^–C≡C^–		10		NIST
Acetylsalicylic acid		2		Wikipedia	NIST
Achilleic acid		1	1	Wikipedia	NIST
Acid				Wikipedia	NIST
Acid anhydride (AS/A2 generic)			3	Wikipedia
Acid chloride (AS/A2 generic)			5	Wikipedia
Acid chloride (generic)	RCOCl	6	17
Acid isothiocyanate (generic)		1
Acid, diprotic (AS/A2 generic)
Acid, Lewis (AS/A2 generic)
Acid, monoprotic (AS/A2 generic)
Acid, strong Brønsted (AS/A2 generic)				Wikipedia
Acid, weak Brønsted (AS/A2 generic)				Wikipedia
Acid-base indicator (AS/A2 generic)	Acid-base Indicator			Wikipedia
Acidspar	CaF₂	3	5	Wikipedia	NIST
Acidum boricum	H₃BO₃	10	9	Wikipedia	NIST
AcNH2	CH₃CONH₂	4	1	Wikipedia	NIST
AcOH	CH₃COOH	32	27	Wikipedia	NIST
AcOMe			2	Wikipedia	NIST
Aconitase	Aconitase		2	Wikipedia
Aconitate hydratase	Aconitase		2	Wikipedia
cis-Aconitic acid		1	1	Wikipedia	NIST
AcOOH	CH₃COOOH	3	4	Wikipedia	NIST
AcOR	CH₃COOR	2	3
Acrolein		3	4	Wikipedia	NIST
Acrylate ion			1	Wikipedia	NIST
Acrylic acid		6		Wikipedia	NIST
Acrylic_glass		1		Wikipedia	NIST
Acrylonitrile		6	10	Wikipedia	NIST
Acrylonitrile-butadiene-styrene copolymer	ABS	1		Wikipedia	NIST
Actinide element (generic)	Actinide Element
Actinium	Ac			Wikipedia	NIST
Actinium 218	²¹⁸At	1	1	Wikipedia	NIST
Actinium 225	²²⁵Ac	1	1	Wikipedia	NIST
Actinium 227	²²⁷Ac	1	2	Wikipedia	NIST
Actinium 228	²²⁸Ac	1	1	Wikipedia	NIST
Actinolite	Ca₂(Mg_4.5-2.5Fe²⁺_0.5-2.5) Si₈O₂₂(OH)₂			Wikipedia
Acyl cation (AS/A2 generic)		2		Wikipedia
Acyl cation (generic)	[RCO]⁺	1	15
Acyl cation synthon (generic)		1	10
Acyl cation/tetrachloroaluminate complex (generic)		2	1
Acyl chloride (AS/A2 generic)			5	Wikipedia
Acyl chloride (generic)	RCOCl	6	17
Acyl radical		4	2		NIST
Acyl-Nfg complex (generic)		1	10
Acylium ion (AS/A2 generic)		2		Wikipedia
Acyloic (generic)
Adamantane, 1-bromo			1		NIST
Adamantyl function (generic)				Wikipedia
1-Adamantyl phenyl thioether		1			NIST
Adamite	Zn₂AsO₄(OH)			Wikipedia
Adams' catalyst	PtO₂			Wikipedia	NIST
Adenine	Adenine A		1	Wikipedia	NIST
Adenine diphosphate	APD		1	Wikipedia	NIST
Adenine monophosphate	AMP			Wikipedia	NIST
Adenine triphosphate	ATP	1		Wikipedia	NIST
Adenosine 3,5-cyclic phosphate	cAMP			Wikipedia	NIST
Adipic acid		4	3	Wikipedia	NIST
Adiponitrile		3	1	Wikipedia	NIST
ADP	APD		1	Wikipedia	NIST
Adrenaline				Wikipedia	NIST
Adularia	KAlSi₃O₈			Wikipedia
Aegirine	NaFe³⁺ [Si₂O₆]			Wikipedia
Ag	Ag	12	10	Wikipedia	NIST
[Ag(CN)2]-	[Ag(CN)₂]^–	6	3		NIST
Ag(NH3)2NO3(aq)	Tollens' Reagent	1	4	Wikipedia	NIST
[Ag(NH3)2]+	[Ag(NH₃)₂]⁺	3	3		NIST
[Ag(S2O3)2]3-	[Ag(S₂O₃)₂]^3–	3			NIST
Ag+	Ag⁺	3	33		NIST
Ag2CO3	Ag₂CO₃	3	2	Wikipedia	NIST
Ag2Cr2O4	Ag₂CrO₄	2		Wikipedia	NIST
Ag2F	Ag₂F			Wikipedia	NIST
Ag2O	Ag₂O	1	3	Wikipedia	NIST
Ag2O2	Ag₂O₂			Wikipedia	NIST
Ag2S	Ag₂S	2		Wikipedia	NIST
Ag2S	Ag₂S			Wikipedia
Ag3PO4	Ag₃PO₄	1			NIST
Agate	SiO₂			Wikipedia
AgBF4	AgBF₄	1		Wikipedia	NIST
AgBr	AgBr	6	6	Wikipedia	NIST
AgBrO3	AgBrO₃	1			NIST
AgC2O4	AgC₂O₄	1		Wikipedia	NIST
AgCl	AgCl	9	6	Wikipedia	NIST
[AgCl2]-	[AgCl₂]^–	2			NIST
AgCN	AgCN		1	Wikipedia	NIST
AgF	AgF	3	3	Wikipedia	NIST
AgF2	AgF₂	3	2	Wikipedia	NIST
AgI	AgI	3	1	Wikipedia	NIST
AgIO3	AgIO₃	1		Wikipedia	NIST
AgNO3	AgNO₃	1	11	Wikipedia	NIST
AgSCN	AgSCN	1			NIST
AgsSO4	Ag₂SO₄	1	1	Wikipedia	NIST
Air	Air		8	Wikipedia	NIST
Al	Al	3	21	Wikipedia	NIST
Al(CH2CH3)3	Al(CH₂CH₃)₃	2	3	Wikipedia	NIST
Al(CH3)3	Al(CH₃)₃			Wikipedia	NIST
Al(H2O)3(OH)3	Al(H₂O)₃(OH)₃ Al(OH)₃	4	3		NIST
[Al(H2O)6]3+	[Al(H₂O)₆]³⁺	2	6		NIST
Al(O(CH3)2CH)3	Al(OⁱPr)₃		1	Wikipedia	NIST
Al(OH)3	Al(OH)₃	2	11	Wikipedia	NIST
[Al(OH)4]-	[Al(OH)₄]^–	8		Wikipedia	NIST
Al(OiPr)3	Al(OⁱPr)₃		1	Wikipedia	NIST
Al2(SO4)3	Al₂(SO₄)₃	2	2	Wikipedia	NIST
Al2O3	Al₂O₃	15	12	Wikipedia	NIST
Al3+	Al³⁺	3	6		NIST
Al3Cl6	Al₂Cl₆	1		Wikipedia	NIST
Ala		2	3	Wikipedia	NIST
Ala-ala	Ala-Ala	1			NIST
Ala-gly	Ala-Gly	1			NIST
Alanine		2	3	Wikipedia	NIST
Alanine, deprotonated			1	Wikipedia	NIST
Alanine, protonated		1		Wikipedia	NIST
L-Alanyl-L-alanine	Ala-Ala	1			NIST
L-Alanylglycine	Ala-Gly	1			NIST
AlBr3	AlBr₃	1	1	Wikipedia	NIST
[AlBr4]-	[AlBr₄]^–				NIST
AlCl3	AlCl₃	5	34	Wikipedia	NIST
AlCl3.6H2O	AlCl₃.6H₂O	3			NIST
[AlCl4]-	[AlCl₄]^–	16	4		NIST
Alcohol (AS/A2 generic)		1	3	Wikipedia
Alcohol (generic)	R–OH	18	13	Wikipedia
1° Alcohol (generic)	RCH₂OH	15	3
1° Alcohol, R-CH2CH2OH (generic)	R–CH₂CH₂OH	5
2° Alcohol (generic)	R₂CHOH	6
2° Alcohol, cyclohexyl (generic)		1		Wikipedia
3° Alcohol (generic)	R₃COH	5	1	Wikipedia
1° Alcohol (AS/A2 generic)		4	1	Wikipedia
2° Alcohol (AS/A2 generic)		4	1	Wikipedia
3° Alcohol (AS/A2 generic)			1	Wikipedia
Alcohol, benzylic (generic)		1		Wikipedia
Alcohol, primary (AS/A2 generic)		4	1	Wikipedia
Alcohol, secondary (AS/A2 generic)		4	1	Wikipedia
Alcohol, tertiary (AS/A2 generic)			1	Wikipedia
Aldehyde (AS/A2 generic)		1	10	Wikipedia
Aldehyde (generic)	RCHO	11	21	Wikipedia
Aldehyde stabilised carbanion (generic)			2
Aldehyde, a,b-unsaturated (generic)			1	Wikipedia
Aldehyde, alpha-bromo (generic)		2
Aldehyde, alpha-halogen (generic)
Aldehyde, alpha-hydrogen (generic)	RCH₂CHO	2	2
Aldehyde, beta-hydroxy (generic)		2
Aldehyde, protonated (generic)		1
Aldimine (generic)				Wikipedia
Aldimine, N-alkyl (generic)				Wikipedia
Aldose (generic)	Aldose			Wikipedia
AlEt3	Al(CH₂CH₃)₃	2	3	Wikipedia	NIST
AlF3	AlF₃	4	1	Wikipedia	NIST
[AlF4]-	[AlF₄]^–				NIST
[AlF6]3-	[AlF₆]^3–		1		NIST
AlH3	AlH₃		2	Wikipedia	NIST
[AlH4]-	[AlH₄]^–	1	2		NIST
AlI3	AlI₃	1		Wikipedia	NIST
[AlI4]-	[AlI₄]^–				NIST
Alicyclic (generic)		1	1	Wikipedia
Alizarin yellow GG	Alizarin Yellow				NIST
Alkali (generic)	Alkali			Wikipedia
Alkali metals (generic)	Group Ia/1 Alkali Metals			Wikipedia
Alkaline earth metals (generic)	Group IIa/2 Alkaline Earth Metals			Wikipedia
Alkane (AS/A2 generic)				Wikipedia
Alkane (generic)	R–H	8	1	Wikipedia
Alkanol (generic)	R–OH	18	13	Wikipedia
Alkene (AS/A2 generic)				Wikipedia
alpha-Alkene (long chain)		2		Wikipedia	NIST
Alkene HOMO (generic)
Alkene LUMO (generic)
Alkene synthon (generic)			1
Alkene, 1,1-disubstituted (generic)				Wikipedia
cis Alkene (generic)		2	2
Alkene, monosubstituted (generic)		5	9
Alkene, tetrasubstituted (generic)		2	6
trans Alkene (generic)		4	3	Wikipedia
Alkene, trisubstituted (generic)		1	1
Alkenyl lithium (generic)		1	1
Alkoxide (generic)	RO^–	1	8	Wikipedia
Alkoxide ion (AS/A2 generic)				Wikipedia
1° Alkoxide ion (generic)	R–CH₂O^–	1	2
2° Alkoxide ion (generic)
3° Alkoxide ion (generic)		2	1
Alkoxy aluminium hydride ion (generic)	[ROAlH₃]^–
Alkoxy borohydride ion (generic)	[ROBH₃]^–
Alkoxy carbenium ion (generic)			2
Alkoxy cation (generic)	[R–O]⁺
3-Alkoxy propanoate, alkyl (generic)		1
1° Alkyl benzene (generic)		1	1
Alkyl alkoxy hydroxy carbenium ion (generic)		1
Alkyl aluminium hydride ion (generic)	[RAlH₃]^–
Alkyl ammonium tetrafluoroborate (generic)	[R₄N]⁺ [BF₄]^–	1
Alkyl borohydride ion (generic)	[RBH₃]^–
Alkyl bromide (generic)	RBr	5	8	Wikipedia
1° Alkyl bromide (generic)	R–CH₂–Br	1	2
2° Alkyl bromide (generic)		2	1
Alkyl carbene (generic)	R–C–H		1	Wikipedia
Alkyl carbenium ion (generic)	R⁺	2	32	Wikipedia
1° Alkyl carbenium ion (generic)	[RCH₂CH₂]⁺		6
2° Alkyl carbenium ion (generic)	[R₂CH]⁺		3
3° Alkyl carbenium ion (generic)	[R₃C]⁺		3
Alkyl carbenium ion synthon (generic)	R–Nfg	1	7
1° Alkyl carbenium ion synthon (generic)	RCH₂–Nfg	1
2° Alkyl carbenium ion synthon (generic)	(R)₂CH–Nfg	1
3° Alkyl carbenium ion synthon (generic)	(R)₃C–Nfg	1
Alkyl chloride (generic)	RCl	4	7	Wikipedia
2° Alkyl chloride (generic)		2	1
Alkyl cyanide (generic)	R–CN	5	11
Alkyl fluoride (generic)	R–F	2	1	Wikipedia
2-Alkyl indole (generic)		1
Alkyl iodide (generic)	R–I	3	7	Wikipedia
2° Alkyl iodide (generic)		2	1
Alkyl lithium (generic)	RLi	2	4
Alkyl magnesium bromide (generic)	RMgBr	2	1	Wikipedia
Alkyl magnesium chloride (generic)	RMgCl	2	1	Wikipedia
Alkyl magnesium halide (generic)	RMgX	1	12	Wikipedia
Alkyl methyl carbenium ion (generic)		1	4
Alkyl nitrile (generic)	R–CN	5	11
Alkyl nitrile alpha-carbanion (generic)			1
Alkyl oxonium ion (generic)
1° Alkyl oxonium ion (generic)	[RCH₂OH₂]⁺	1
sec Alkyl sulfonate		2		Wikipedia	NIST
Alkyl telluronium ion (generic)	[R–TeH₂]⁺	2
Alkyl thiocyanate (generic)	R–S–C≡N	2		Wikipedia
Alkyl, -R (generic)	–R			Wikipedia
Alkyl, R-R (generic)	R–R	3
Alkyl, -CH2- (generic)		5	2
Alkyl, -CH2CH2- (generic)		6
Alkyl, adamantyl (generic)				Wikipedia
Alkyl, butyl (generic)				Wikipedia
Alkyl, C-H (generic)		1	1
Alkyl, ethyl (generic)	CH₃CH₂–R			Wikipedia
Alkyl, isopropyl (generic)
Alkyl, neopentyl (generic)
Alkyl, propyl (generic)				Wikipedia
Alkyl, tertiary butyl (generic)
2-Alkyl-1,3-dithiane (generic)		1	1
Alkyl-Nfg complex (generic)	R–Nfg	1	7
1° Alkyl-Nfg complex (generic)	RCH₂–Nfg	1
3° Alkyl-Nfg complex (generic)	(R)₃C–Nfg	1
2° Alkyl-Nfg complex (generic)	(R)₂CH–Nfg	1
Alkylated nucleophile (generic)	R–Nu	3
Alkylnitrile (AS/A2 generic)		1	3	Wikipedia
Alkyne (AS/A2 generic)				Wikipedia
Alkyne anion (generic)	R–C≡C^–	1	2	Wikipedia
Alkyne, disubstituted (generic)	R–C≡C–R	3	10
Alkyne, terminal hydrogen (generic)	R–C≡C–H	1	3
Allanite	(Ca,Ce,Y,La,Th)₂ (Al,Fe)₃Si₃O₁₂(OH)			Wikipedia
Allene (generic)				Wikipedia
Allene	H₂C=C=CH₂			Wikipedia	NIST
D-Allose		1		Wikipedia	NIST
Alloy (generic)	Alloy			Wikipedia
Allyl alcohol		8	2	Wikipedia	NIST
Allyl alkoxide ion			1		NIST
Allyl anion			2	Wikipedia	NIST
Allyl anion (generic)
Allyl cation			2		NIST
Allyl cation (generic)		1	1
Allyl chloride		1	3	Wikipedia	NIST
Allyl FMO (generic)
Allyl phenyl ether			1		NIST
Allyl radical					NIST
4-Allyl-1,2-methylenedioxybenzene				Wikipedia	NIST
4-Allyl-2-methoxyphenol		1			NIST
1° Allylic alcohol (generic)		1		Wikipedia
2° Allylic alcohol (generic)		2		Wikipedia
Allylic cation synthon (generic)		1
Allylic-Nfg complex (generic)		1
2-Allylphenol		1			NIST
AlN	AlN	1		Wikipedia	NIST
Alpha effect Lewis base (generic)				Wikipedia
Alpha particle	α	44	6	Wikipedia	NIST
α-ketoglutarate dehydrogenase	α-ketoglutarate dehydrogenase		1	Wikipedia
D-Altrose		1		Wikipedia	NIST
Alum	KAl(SO₄)₂.12H₂O	1		Wikipedia	NIST
Alumina	Al₂O₃	15	12	Wikipedia	NIST
Alumina trihydrate	Al(OH)₃	2	11	Wikipedia	NIST
Aluminium	Al	3	21	Wikipedia	NIST
Aluminium bromide	AlBr₃	1	1	Wikipedia	NIST
Aluminium chloride	AlCl₃	5	34	Wikipedia	NIST
Aluminium chloride dimer	Al₂Cl₆	1		Wikipedia	NIST
Aluminium chloride hexahydrate	AlCl₃.6H₂O	3			NIST
Aluminium fluoride	AlF₃	4	1	Wikipedia	NIST
Aluminium hexaaqua complex ion	[Al(H₂O)₆]³⁺	2	6		NIST
Aluminium hexafluoride ion	[AlF₆]^3–		1		NIST
Aluminium hydride	AlH₃		2	Wikipedia	NIST
Aluminium hydride, alkoxy ion (generic)	[ROAlH₃]^–
Aluminium hydride, alkyl ion (generic)	[RAlH₃]^–
Aluminium hydride, dialkoxy ion (generic)	[(RO)₂AlH₂]^–
Aluminium hydride, dialkyl ion (generic)	[R₂AlH₂]^–
Aluminium hydride, trialkoxy ion (generic)	[(RO)₃AlH]^–
Aluminium hydride, trialkyl ion (generic)	[R₃AlH]^–
Aluminium hydroxide	Al(OH)₃	2	11	Wikipedia	NIST
Aluminium hydroxide, hydrated	Al(H₂O)₃(OH)₃ Al(OH)₃	4	3		NIST
Aluminium iodide	AlI₃	1		Wikipedia	NIST
Aluminium ion	Al³⁺	3	6		NIST
Aluminium isopropoxide	Al(OⁱPr)₃		1	Wikipedia	NIST
Aluminium nitride	AlN	1		Wikipedia	NIST
Aluminium oxide	Al₂O₃	15	12	Wikipedia	NIST
Aluminium potassium sulfate dodecahydrate	KAl(SO₄)₂.12H₂O	1		Wikipedia	NIST
Aluminium sulfate	Al₂(SO₄)₃	2	2	Wikipedia	NIST
Aluminium tetrachloride anion	[AlCl₄]^–	16	4		NIST
Aluminium tetrahydroxy ion	[Al(OH)₄]^–	8		Wikipedia	NIST
Aluminium triaquatrihydroxy complex	Al(H₂O)₃(OH)₃ Al(OH)₃	4	3		NIST
Aluminium, diethyl cyanide		1			NIST
Aluminium, diisobutyl hydride		1	2	Wikipedia	NIST
Aluminium, trimethyl	Al(CH₃)₃			Wikipedia	NIST
Aluminum	Al	3	21	Wikipedia	NIST
Aluminum alloy 3S	Aluminium Alloy S3			Wikipedia	NIST
Aluminum bronze	Aluminum Bronze			Wikipedia	NIST
Aluminum-silicon 43	Al-Si				NIST
Alumstone	KAl₃(SO₄)₂(OH)₆			Wikipedia
Alunite	KAl₃(SO₄)₂(OH)₆			Wikipedia
Am	Am			Wikipedia	NIST
Amalgam, bismuth	Bismuth Amalgam			Wikipedia	NIST
Amalgam, dentist's	Dentist's Amalgam			Wikipedia	NIST
Amalgam, zinc	Zn(Hg)		2	Wikipedia	NIST
Ambidentate base
Amblygonite	(Li,Na)Al(PO₄) (F,OH)		1	Wikipedia
Americium	Am			Wikipedia	NIST
Americium 241	²⁴¹Am	1	1	Wikipedia	NIST
Amide (AS/A2 generic)		2		Wikipedia
Amide (generic)/water complex		1
1° Amide (generic)		5	5
1° Amide, anion (generic)			1	Wikipedia
2° Amide (generic)		1	5
3° Amide (generic)		2
Amide dimer, hydrogen bonded		1
Amide ion	[H₂N]^–	2	18		NIST
Amide, cyclic (generic)				Wikipedia
Amide, cyclic - 4 membered ring (generic)				Wikipedia
Amide, protonated (generic)		1
Amidocyanogen	HN=C=NH	2	3	Wikipedia	NIST
Amidosulfate anion	[NH₂SO₃]^–		1		NIST
1° Amine (generic)	R–NH₂	4	9
1° Amine, 1° alkyl (generic)	RCH₂NH₂	6
2° Amine (generic)	R₂NH	1	3
2 Amine, (RCH2)2NH (generic)	(RCH₂)₂NH	1		Wikipedia
2° Amine, R, R- (generic)		5		Wikipedia
3° Amine (generic)	R₃N	1	3
3° Amine, (RCH2)3N (generic)	(RCH₂)₃N	1		Wikipedia
3° Amine, beta-chloro (generic)	R₂N–CH₂CH₂Cl	1
3° Amine, beta-hydroxy (generic)		1
Amine N-oxide (generic)	R₃N=O	1
1° Amine (AS/A2 generic)		2		Wikipedia
2° Amine (AS/A2 generic)				Wikipedia
3° Amine (AS/A2 generic)				Wikipedia
Amine, bis(trimethyl)silyl		1			NIST
Amine, n-butyl		1	1	Wikipedia	NIST
Amine, diisopropyl		2		Wikipedia	NIST
Amine, diisopropyl ethyl					NIST
Amine, dimethyl	(CH₃)₂NH	4	3	Wikipedia	NIST
Amine, ethyl	CH₃CH₂NH₂	5	7	Wikipedia	NIST
Amine, methyl	CH₃NH₂	2	9	Wikipedia	NIST
Amine, primary (AS/A2 generic)		2		Wikipedia
Amine, propyl			1	Wikipedia	NIST
Amine, secondary (AS/A2 generic)				Wikipedia
Amine, tertiary (AS/A2 generic)				Wikipedia
Amine, triethyl	(CH₃CH₂)₃N		1	Wikipedia	NIST
Amine, trimethyl	(CH₃)₃N	7	3	Wikipedia	NIST
2-Aminihypoxthanthine	Guanine G		1	Wikipedia	NIST
Amino acid (AS/A2 generic)		1	2	Wikipedia
alpha-Amino acid, deprotonated (generic)			1	Wikipedia
alpha-Amino acid, protonated (generic)		1		Wikipedia
alpha-Amino acid (generic)		1	1	Wikipedia
(-)-2-Amino-1-(3,4-dihydroxyphenyl)ethanol				Wikipedia	NIST
(D)-threo-2-Amino-1-(4-nitrophenyl)-1,3-propanediol		1	1	Wikipedia	NIST
threo-2-Amino-1-(4-nitrophenyl)-1,3-propanediol		1	1	Wikipedia	NIST
2-Amino-1-(4-nitrophenyl)ethanone		1	1		NIST
2-Amino-1-(4-nitrophenyl)ethanone, N-acyl		1	1		NIST
4-Amino-2(1H)-pyrimidinone	Cytosine C		1	Wikipedia	NIST
2-Amino-2-methyl propane	(CH₃)₃C–NH₂		1		NIST
Aminobenzene		8	8	Wikipedia	NIST
2-Aminobenzoic acid			1	Wikipedia	NIST
2-Aminoethanol		1	3	Wikipedia	NIST
Aminoform		1	2	Wikipedia	NIST
Aminomethanamidine			2	Wikipedia	NIST
4-Aminonitrobenzene		1	3	Wikipedia	NIST
4-Aminophenol		1		Wikipedia	NIST
[D(-)-a-Aminophenylacetamido]penicillanic acid				Wikipedia	NIST
2-Aminopropane	(CH₃)₂CHNH₂	1		Wikipedia	NIST
(2S)-2-Aminopropanoic acid		2	3	Wikipedia	NIST
6-Aminopurine	Adenine A		1	Wikipedia	NIST
Aminyl radical	H₂N•				NIST
Aminylium ion	[NH₂]⁺			Wikipedia	NIST
Ammonia	NH₃	48	115	Wikipedia	NIST
Ammonia 0.880	.880 NH₃		6	Wikipedia	NIST
Ammonia, aqueous	NH₃(aq)	2	18	Wikipedia	NIST
Ammonia-Hydrogen chloride complex		1			NIST
Ammonia/borane complex	[H₃N–BH₂–NH₃]⁺[BH₄]^–	1	1		NIST
Ammonia/water complex		1			NIST
Ammoniated electron	e^–(am)	5	2		NIST
Ammonical silver nitrate solution	Tollens' Reagent	1	4	Wikipedia	NIST
Ammonium metavandate	NH₄VO₃	1	1		NIST
Ammonium vandate(V)	NH₄VO₃	1	1		NIST
Ammonium acetate	[NH₄]⁺[CH₃CO₂]^–	1	1	Wikipedia	NIST
Ammonium aminoformate		1	1		NIST
Ammonium bifluoride	[NH₄]⁺ [FHF]^–	1	1		NIST
Ammonium bromide	NH₄Br	5		Wikipedia	NIST
Ammonium carbamate		1	1		NIST
Ammonium carbonate	(NH₄)₂CO₃		1	Wikipedia	NIST
Ammonium chloride	NH₄Cl	15	6	Wikipedia	NIST
Ammonium ethanoate	[NH₄]⁺[CH₃CO₂]^–	1	1	Wikipedia	NIST
Ammonium fluoride	NH₄F	1	1	Wikipedia	NIST
Ammonium hydrogen difluoride	[NH₄]⁺ [FHF]^–	1	1		NIST
Ammonium hydrogen sulfide	NH₄HS	1			NIST
Ammonium hydrosulfide	(NH₄)₂S	1		Wikipedia	NIST
Ammonium ion	[NH₄]⁺	27	15	Wikipedia	NIST
Ammonium ion (AS/A2 generic)				Wikipedia
1° Ammonium ion (generic)	[R–NH₃]⁺	2
2° Ammonium ion (generic)	[R₂NH₂]⁺	1
3° Ammonium ion (generic)	[R₃NH]⁺	1
4° Ammonium ion (generic)	[R₄N]⁺		1
Ammonium ion, n-butyl		2			NIST
Ammonium ion, cis-(4-tertiary butylcyclohexyl) trimethyl			1		NIST
Ammonium ion, cyclohexyl trimethyl			1		NIST
Ammonium ion, dimethyl	[(CH₃)₂NH₂]⁺	1			NIST
Ammonium ion, diphenyl		1			NIST
Ammonium ion, ethyl	[CH₃CH₂NH₃]⁺	2			NIST
Ammonium ion, methyl	[CH₃NH₃]⁺	4			NIST
Ammonium ion, phenyl		2			NIST
Ammonium ion, n-propyl		1			NIST
Ammonium ion, tetramethyl	[(CH₃)₄N]⁺	2	3		NIST
Ammonium ion, trans-(4-tertiary butylcyclohexyl) trimethyl			1		NIST
Ammonium ion, triethyl	[(CH₃CH₂)₃NH]⁺	1			NIST
Ammonium ion, trimethyl	[(CH₃)₃NH]⁺	2			NIST
Ammonium nitrate	NH₄NO₃	3	5	Wikipedia	NIST
Ammonium nitrate fuel oil	NH₄NO₃ + Fuel Oil	1		Wikipedia
Ammonium nitrite	NH₄NO₃		2	Wikipedia	NIST
Ammonium perchlorate	NH₄ClO₄	2	2	Wikipedia	NIST
Ammonium sulfate	(NH₄)₂SO₄	3	1	Wikipedia	NIST
Ammonium sulfide, aqueous solution	(NH₄)₂S	1		Wikipedia	NIST
Ammonium sulfite	(NH₄)₂SO₃ .H₂O	2	1		NIST
Ammonium tetrafluoroborate	NH₄BF₄	1	1		NIST
Ammonium thiosulfate	(NH₄)₂S₂O₃	3			NIST
AMP	AMP			Wikipedia	NIST
cAMP	cAMP			Wikipedia	NIST
Amphetamine				Wikipedia	NIST
Ampicillin				Wikipedia	NIST
tert-Amyl alcohol		1			NIST
tert-Amyl bromide		2	1		NIST
Amylopectin	Starch		3	Wikipedia
Amylose	Starch		3	Wikipedia
AN		6	10	Wikipedia	NIST
Anadonis green	Cr₂O₃	3	2	Wikipedia	NIST
Analcime	NaAlSi₂O₂ .2H₂O			Wikipedia
Analcite	NaAlSi₂O₂ .2H₂O			Wikipedia
Analgesic (generic)	Analgesic			Wikipedia
Analgesic, narcotic (generic)	Narcotic Analgesic			Wikipedia
Anatase	TiO₂		1	Wikipedia
Andalucite	Al₂SiO₅
Anethole				Wikipedia	NIST
ANFO	NH₄NO₃ + Fuel Oil	1		Wikipedia
Anglesite	PbSO₄			Wikipedia
Angular molecular shape, AX2E1 (generic)				Wikipedia
Angular molecular shape, AX2E2 (generic)				Wikipedia
Anhydride (AS/A2 generic)			3	Wikipedia
Anhydride (generic)	(RCOO)₂O	3		Wikipedia
Anhydrite	CaSO₄			Wikipedia
Aniline		8	8	Wikipedia	NIST
Aniline anion			1	Wikipedia	NIST
Aniline, N-2° alkyl (generic)		1		Wikipedia
Aniline, N-alkyl (generic)			1	Wikipedia
Aniline, protonated		2			NIST
Anion bridging bond (generic)				Wikipedia
Anion, non-metal (AS/A2 generic)
Anionic Lobe-HOMO Lewis base congeneric planar					NIST
Anisole			2	Wikipedia	NIST
Ankerite	Ca(Mg,Fe) (CO₃)₂			Wikipedia
Annabergite	Ni₃(AsO₄)₂ .8H₂O			Wikipedia
Anthophyllite asbestos	(Mg,Fe)₇Si₈O₂₂(OH)₂			Wikipedia
Anthquinol		1	1		NIST
Anthracene		1	1	Wikipedia	NIST
Anthracene oil	Anthracene Oil	1			NIST
9,10-Anthradiol		1	1		NIST
Anthrahydroquinone		1	1		NIST
Anthranilic acid			1	Wikipedia	NIST
9,10-Anthraquinone		5	1	Wikipedia	NIST
Antibiotic (generic)	Antibiotic			Wikipedia
Antibotton quark	_— b			Wikipedia
Anticharm quark	_— c		1	Wikipedia
Antichlor	Na₂S₂O₃	5	4	Wikipedia	NIST
Antidown quark	_— d		3	Wikipedia
Antielectron	β⁺	6	1	Wikipedia	NIST
Antifreeze		6	9	Wikipedia	NIST
Antimonic oxide	Sb₂O₅		1	Wikipedia	NIST
Antimonide ion	Sb^3–		5		NIST
Antimonite	Sb₂S₃			Wikipedia
Antimonous fluoride	SbF₃	1	2		NIST
Antimony	Sb	1	8	Wikipedia	NIST
Antimony glance	Sb₂S₃			Wikipedia
Antimony hydride	H₃Sb	7	1	Wikipedia	NIST
Antimony pentafluoride	SbF₅	2	6	Wikipedia	NIST
Antimony pentoxide	Sb₂O₅		1	Wikipedia	NIST
Antimony sulfide	Sb₂S₃	1	1	Wikipedia	NIST
Antimony trioxide	Sb₂O₃	2	2	Wikipedia	NIST
Antimony, native	Sb _native			Wikipedia
Antimony(III) chloride	SbCl₃	3	1		NIST
Antimony(III) fluoride	SbF₃	1	2		NIST
Antimony(III) ion	Sb³⁺		2		NIST
Antimony(v) chloride	SbCl₅	2	2		NIST
Antimony(V) fluoride	SbF₅	2	6	Wikipedia	NIST
Antimony(V) hexafluoride ion	[SbF₆]^–	2	1		NIST
Antimony(V) ion	Sb⁵⁺		1		NIST
Antimony(V) pentafluoride. fluorosulfonic acid	H⁺[SbF₆]^– .SO₃			Wikipedia	NIST
Antimony(V) pentafluoride. hydrogen fluoride	ROH	2		Wikipedia	NIST
Antimuon	_— μ		1	Wikipedia
Antiproton	_— p	1		Wikipedia
Antipsychotic (generic)	Major Tranquilliser
Antistrange quark	_— s			Wikipedia
Antitau	_— τ			Wikipedia
Antitop quark	_— t			Wikipedia
Antiup quark	_— u		2	Wikipedia
AP		1	1	Wikipedia	NIST
Apatite	Ca₅(PO₄)₃ (F,Cl,OH)			Wikipedia
Apophyllite	(K,Na)Ca₄Si₈O₂₀ (F,OH).8H₂O			Wikipedia
Aqua	H₂O	529	531	Wikipedia	NIST
Aqua regia	Aqua Regia	1	2	Wikipedia	NIST
Aqueous alkali, 0.05 to 1.0 molar (generic)	OH^–(aq)		8
Aqueous ammonia	NH₃(aq)	2	18	Wikipedia	NIST
Aqueous hydrochloric acid	HCl(aq)	2	13	Wikipedia	NIST
Aqueous M(II) ion (AS/A2 generic)		1	1
Aqueous M(III) ion (AS/A2 generic)		1	1
Aqueous mineral acid, 0.05 to 1.0 molar (generic)	H⁺(aq)		15
Aqueous nitric acid	HNO₃(aq)	3	3	Wikipedia	NIST
Aqueous sodium hydroxide	NaOH(aq)	5	37	Wikipedia	NIST
Aqueous sulfuric acid	H₂SO₄(aq)	3	11	Wikipedia	NIST
Ar	Ar	1	6	Wikipedia	NIST
Ar(l)	Ar(l)	1		Wikipedia	NIST
D-Arabinose		1	1	Wikipedia	NIST
Arachidic acid	CH₃(CH₂)₁₈COOH			Wikipedia	NIST
Arachidonic acid	Arachidonic Acid			Wikipedia	NIST
Aragonite	CaCO₃			Wikipedia
Arcanum duplicatum	K₂SO₄	2	1	Wikipedia	NIST
Arcton 6	CCl₂F₂	4	1	Wikipedia	NIST
Arene (AS/A2 generic)				Wikipedia
Arenium ion (generic)
Arg		1	1	Wikipedia	NIST
Argentic fluoride	AgF₂	3	2	Wikipedia	NIST
Argentic oxide	Ag₂O₂			Wikipedia	NIST
Argentite	Ag₂S			Wikipedia
Argentocyanide ion	[Ag(CN)₂]^–	6	3		NIST
Argentous fluoride	AgF	3	3	Wikipedia	NIST
Argentum	Ag	12	10	Wikipedia	NIST
Arginine		1	1	Wikipedia	NIST
Arginine, deprotonated			1	Wikipedia	NIST
Arginine, doubly-protonated		1		Wikipedia	NIST
Arginine, protonated		1	1	Wikipedia	NIST
Argon	Ar	1	6	Wikipedia	NIST
Argon 36	³⁶Ar	1		Wikipedia	NIST
Argon fluorohydride	H–Ar–F	1		Wikipedia	NIST
Argon, liquid	Ar(l)	1		Wikipedia	NIST
Argonium ion	[ArH]⁺	1			NIST
Argyrodite	Ag₈GeS₆		1	Wikipedia
[ArH]+	[ArH]⁺	1			NIST
Aromatic compound (AS/A2 generic)				Wikipedia
Aronium ion (generic)
Arsane	H₃As	7	1	Wikipedia	NIST
Arsenate (dihydrogen) ion	[H₂AsO₄]^–	1	1		NIST
Arsenate (hydrogen) ion	[HAsO₄]^2–	1	1		NIST
Arsenic	As	2	8	Wikipedia	NIST
ortho Arsenic acid	H₃AsO₄	1			NIST
Arsenic hexafluoride ion	[AsF₆]^–	3	1		NIST
Arsenic pentachloride	AsCl₅			Wikipedia	NIST
Arsenic pentoxide	As₂O₅		1	Wikipedia	NIST
Arsenic trichloride	AsCl₃	2	1	Wikipedia	NIST
Arsenic trioxide	As₂O₃	2	1	Wikipedia	NIST
Arsenic trisulfide	As₂S₃	1	1	Wikipedia	NIST
Arsenic, native	As _native			Wikipedia
Arsenic, yellow	As₄	1		Wikipedia	NIST
Arsenic(III) fluoride	AsF₃	1	2		NIST
Arsenic(III) ion	As³⁺		2		NIST
Arsenic(III) sulfide	As₂S₃	1	1	Wikipedia	NIST
Arsenic(V) fluoride	AsF₅	3	3		NIST
Arsenic(V) ion	As⁵⁺		1		NIST
Arsenide ion	As^3–		5	Wikipedia	NIST
Arsenite ion	[AsO₂]^–			Wikipedia	NIST
Arsenopyrite	FeAsS		1	Wikipedia
Arsenopyrites	FeS₂.FeAs₂		1		NIST
Arsenous oxide	As₂O₃	2	1	Wikipedia	NIST
Arsinate ion	[AsO₄]^3–		1		NIST
Arsine	H₃As	7	1	Wikipedia	NIST
Arsine anion	[H₂As]^–		1		NIST
Arsine anion (generic)	[R₂As]^â€“		1
Arsine, dialkyl (generic)	R₂AsH	1
Arsine, phenyl		1			NIST
Arsine, phenyl anion			1		NIST
Arsine, trialkyl (generic)	R₃As		1
Arsine, triethyl	(CH₃H₂)₃As		1		NIST
Arsnic hydride	H₃As	7	1	Wikipedia	NIST
Arsole				Wikipedia	NIST
Arsonium ion	[AsH₄]⁺	1			NIST
Arsonium ion (generic)	[R₃AsH]⁺	1
Arsonium ion, triethyl	[(CH₃CH₂)₃AsH]⁺	1			NIST
Arylam		2		Wikipedia	NIST
As	As	2	8	Wikipedia	NIST
As	As₄	1		Wikipedia	NIST
As(CH3CH2)2	(CH₃H₂)₃As		1		NIST
As2O3	As₂O₃	2	1	Wikipedia	NIST
As2O5	As₂O₅		1	Wikipedia	NIST
As2S3	As₂S₃	1	1	Wikipedia	NIST
As3+	As³⁺		2		NIST
As3-	As^3–		5	Wikipedia	NIST
As4O10	As₂O₅		1	Wikipedia	NIST
As5+	As⁵⁺		1		NIST
ASA		2		Wikipedia	NIST
Asbestos, anthophyllite	(Mg,Fe)₇Si₈O₂₂(OH)₂			Wikipedia
Asbestos, tremolite	Ca₂(Mg,Fe)₅ Si₈O₂₂			Wikipedia
(+/-)-Ascaridole		1		Wikipedia	NIST
AsCl3	AsCl₃	2	1	Wikipedia	NIST
AsCl5	AsCl₅			Wikipedia	NIST
xuy	YbF₂				NIST
AsF3	AsF₃	1	2		NIST
AsF5	AsF₅	3	3		NIST
[AsF6]-	[AsF₆]^–	3	1		NIST
AsH3	H₃As	7	1	Wikipedia	NIST
Asn		1	1	Wikipedia	NIST
[AsO2]-	[AsO₂]^–			Wikipedia	NIST
[AsO4]3-	[AsO₄]^3–		1		NIST
Asp		1	1	Wikipedia	NIST
Asparagine		1	1	Wikipedia	NIST
Asparagine, deprotonated			1	Wikipedia	NIST
Asparagine, protonated		1		Wikipedia	NIST
Aspartic acid		1	1	Wikipedia	NIST
Aspartic acid, deprotonated		1	1	Wikipedia	NIST
Aspartic acid, doubly-deprotonated			1	Wikipedia	NIST
Aspartic acid, protonated		1		Wikipedia	NIST
Asphalt	Bitumen	1		Wikipedia	NIST
Aspirin		2		Wikipedia	NIST
Associated gas	Natural Gas	1	5	Wikipedia	NIST
Astatine	At			Wikipedia	NIST
Astatine 216	²¹⁶At	1	1	Wikipedia	NIST
Astatine 217	²¹⁷At	1	1	Wikipedia	NIST
At	At			Wikipedia	NIST
Atacamite	Cu₂Cl(OH)₃			Wikipedia
Atomic ion (generic)	Atomic Ion
ATP	ATP	1		Wikipedia	NIST
Au	Au	1	2	Wikipedia	NIST
[Au(CN)2]-	[Au(CN)₂]^–	1	1		NIST
Au+	Au⁺	1	2		NIST
Au2O	Au₂O				NIST
Au2O3	Au₂O₃			Wikipedia	NIST
Au3+	Au³⁺		1		NIST
AuBr	AuBr				NIST
AuBr3	AuBr₃			Wikipedia	NIST
AuCl	AuCl			Wikipedia	NIST
AuCl3	AuCl₃			Wikipedia	NIST
[AuCl4]-	[AuCl₄]^–	1			NIST
AuF3	AuF₃			Wikipedia	NIST
Augite	(Ca,Na)(Mg,Fe,Al,Ti) (Si,Al)₂O₆			Wikipedia
AuI	AuI				NIST
AuI3	AuI₃				NIST
Auric bromide	AuBr₃			Wikipedia	NIST
Auric chloride	AuCl₃			Wikipedia	NIST
Auric fluoride	AuF₃			Wikipedia	NIST
Auric iodide	AuI₃				NIST
Auric oxide	Au₂O₃			Wikipedia	NIST
Aurocyanide ion	[Au(CN)₂]^–	1	1		NIST
Aurous bromide	AuBr				NIST
Aurous chloride	AuCl			Wikipedia	NIST
Aurous iodide	AuI				NIST
Aurous oxide	Au₂O				NIST
Aurum	Au	1	2	Wikipedia	NIST
Autunite	Cu(UO₂)₂(PO₄)₂ .8-12H₂O			Wikipedia
Axinite	Ca₂(Fe,Mn)Al₂ BSi₄O₁₅(OH)			Wikipedia
1-Azacyclopentane			1	Wikipedia	NIST
Azane	NH₃	48	115	Wikipedia	NIST
Azide (generic)	R–N₃	1		Wikipedia
Azide ion	[N₃]^–		5	Wikipedia	NIST
((1R)-1-Azidoethyl) benzene		1			NIST
Azine		2	4	Wikipedia	NIST
Azine (generic)
Azinic acid (generic)
Azinoyl (generic)
Aziridine		2		Wikipedia	NIST
Aziridine, N,N-dialkyl (generic)			2
Azo compound (generic)	R–N=N–R'			Wikipedia
Azo, phenyl (generic)		1
Azobenzene					NIST
Azole				Wikipedia	NIST
Azomethylene	CH₂N₂	1	4	Wikipedia	NIST
Azoniaanthracene ion			2		NIST
Azonic acid (generic)
Azono (generic)
Azonoyl (generic)
Azoxy compound (generic)				Wikipedia
Azulene				Wikipedia	NIST
B	B	6	11	Wikipedia	NIST
B(OCH3)3	B(OCH₃)₃	2	1	Wikipedia	NIST
[B(OH)4]-	[B(OH)₄]^–	5			NIST
B2H6	B₂H₆	6	14	Wikipedia	NIST
B2O3	B₂O₃	3	14	Wikipedia	NIST
B2S3	B₂S₃	1		Wikipedia	NIST
B3N3H6		2	1	Wikipedia	NIST
[B3O6]3-	[BO₂]^– [B₃O₆]^3–		2	Wikipedia	NIST
B4C	B₄C	4		Wikipedia	NIST
[B4O7]2-	[B₄O₇]^2–		1	Wikipedia	NIST
Ba	Ba	1	17	Wikipedia	NIST
Ba(NH2)2	Ba(NH₂)₂	2			NIST
Ba(NO3)2	Ba(NO₃)₂		1	Wikipedia	NIST
Ba(OH)2	Ba(OH)₂	7	3	Wikipedia	NIST
Ba2+	Ba²⁺	7	21		NIST
Ba3N2	Ba₃N₂	2	1		NIST
Ba3P2	Ba₃P₂	2			NIST
BaBr2	BaBr₂	2		Wikipedia	NIST
BaC2	BaC₂	3	1		NIST
BaC2O4	BaC₂O₄	1		Wikipedia	NIST
BaCl2	BaCl₂	2	7	Wikipedia	NIST
BaCO3	BaCO₃	3	1	Wikipedia	NIST
BaCrO4	BaCrO₄	1		Wikipedia	NIST
BaF2	BaF₂	2		Wikipedia	NIST
BaH2	BaH₂	2	2		NIST
BaI2	BaI₂	2		Wikipedia	NIST
Ballistite	GELATINE DYNAMITE	1		Wikipedia
BaO	BaO	4	3	Wikipedia	NIST
BaO2	BaO₂	3	1	Wikipedia	NIST
Barbital				Wikipedia	NIST
Barbituric acid (enol form)		1		Wikipedia	NIST
Barbituric acid (keto form)			1	Wikipedia	NIST
Barium	Ba	1	17	Wikipedia	NIST
Barium acetylide	BaC₂	3	1		NIST
Barium amide	Ba(NH₂)₂	2			NIST
Barium bromide	BaBr₂	2		Wikipedia	NIST
Barium carbide	BaC₂	3	1		NIST
Barium carbonate	BaCO₃	3	1	Wikipedia	NIST
Barium chloride	BaCl₂	2	7	Wikipedia	NIST
Barium chromate	BaCrO₄	1		Wikipedia	NIST
Barium fluoride	BaF₂	2		Wikipedia	NIST
Barium hydride	BaH₂	2	2		NIST
Barium hydroxide	Ba(OH)₂	7	3	Wikipedia	NIST
Barium iodide	BaI₂	2		Wikipedia	NIST
Barium ion	Ba²⁺	7	21		NIST
Barium nitrate	Ba(NO₃)₂		1	Wikipedia	NIST
Barium nitride	Ba₃N₂	2	1		NIST
Barium oxalate	BaC₂O₄	1		Wikipedia	NIST
Barium oxide	BaO	4	3	Wikipedia	NIST
Barium peroxide	BaO₂	3	1	Wikipedia	NIST
Barium phosphide	Ba₃P₂	2			NIST
Barium selenide	BaSe	2			NIST
Barium sulfate	BaSO₄	7	2	Wikipedia	NIST
Barium sulfide	BaS	3	2	Wikipedia	NIST
Barium sulphate	BaSO₄	7	2	Wikipedia	NIST
Barium telluride	BaTe	2			NIST
Baryte	BaSO₄			Wikipedia
BaS	BaS	3	2	Wikipedia	NIST
BaSe	BeS	2			NIST
BaSe	BaSe	2			NIST
Base, charged (generic)	Base^– ^{Proton abstractor}		16	Wikipedia
Base, Lewis (AS/A2 generic)				Wikipedia
Base, neutral (generic)	Base: ^{Proton abstractor}		4	Wikipedia
Base, strong Brønsted (AS/A2 generic)				Wikipedia
Base, weak Brønsted (AS/A2 generic)				Wikipedia
BaSO4	BaSO₄	7	2	Wikipedia	NIST
BaTe	BaTe	2			NIST
Battery plates	Battery Plates			Wikipedia	NIST
Bauxite	Al₂O₃.2H₂O (+Fe, Ti oxides)		2	Wikipedia
BBr3	BBr₃	2	2	Wikipedia	NIST
[BBr4]-	[BBr₄]^–				NIST
BCl3	BCl₃	3	5	Wikipedia	NIST
[BCl4]-	[BCl₄]^–				NIST
Be	Be	6	15	Wikipedia	NIST
Be(NH2)2	Be(NH₂)₂	2			NIST
Be(OH)2	Be(OH)₂	7	5	Wikipedia	NIST
[Be(OH)4]2-	[Be(OH)₄]^2–	4			NIST
Be2+	Be²⁺	4	19		NIST
Be2C	Be₂C	2	1		NIST
Be2SiO4	Be₂SiO₄	1			NIST
Be3N2	Be₃N₂	2	1	Wikipedia	NIST
Be3P2	Be₃P₂	2			NIST
BeBr2	BeBr₂	2		Wikipedia	NIST
BeCl2	BeCl₂	2	3	Wikipedia	NIST
BeCO3	BeCO₃	1	1	Wikipedia	NIST
Beet sugar	Sucrose		1	Wikipedia	NIST
BeF2	BeF₂	2	1	Wikipedia	NIST
[BeF4]2-	[BeF₄]^2–				NIST
BeH2	BeH₂	2	2		NIST
BeI2	BeI₂	2		Wikipedia	NIST
Bell metal	Bell Metal			Wikipedia	NIST
Bent molecular shape, AX2E1 (generic)				Wikipedia
Bent molecular shape, AX2E2 (generic)				Wikipedia
Benzaldehyde		2	6	Wikipedia	NIST
Benzaldehyde radical cation		1			NIST
Benzamide				Wikipedia	NIST
Benzamine		8	8	Wikipedia	NIST
2,3-Benzanthracene					NIST
1-Benzazine				Wikipedia	NIST
2-Benzazine				Wikipedia	NIST
Benzedrine				Wikipedia	NIST
Benzene		11	42	Wikipedia	NIST
Benzene anion (generic)
Benzene carbanion			11	Wikipedia	NIST
Benzene diazonium ion		2	11		NIST
Benzene, 1° alkyl (generic)		1	1
Benzene, 1,2-dialkyl (generic)		1		Wikipedia
Benzene, isopropyl		1	1	Wikipedia	NIST
Benzene, protonated		1			NIST
Benzene, substituted (generic)		3
Benzene-1,4-dioic acid		2	2	Wikipedia	NIST
para-Benzeneazophenol		1			NIST
Benzenecarbonal		2	6	Wikipedia	NIST
Benzenecarboxylic acid		6	2	Wikipedia	NIST
Benzenechromium tricarbonyl		1			NIST
Benzenediazonium-2-carboxylate		1	1		NIST
1,2-Benzenedioic acid		2	1	Wikipedia	NIST
Benzeneselenol		1			NIST
Benzenesulfonate ion			1		NIST
Benzenesulfonic acid		2	1		NIST
Benzenethiol		1		Wikipedia	NIST
Benzenium ion			4		NIST
Benzenol		8	10	Wikipedia	NIST
Benzhydrol		1		Wikipedia	NIST
Benzidine			1	Wikipedia	NIST
Benzidine/Trinitrobenzene charge transfer complex		1			NIST
Benziform	CCl₄	11	5	Wikipedia	NIST
2,3-Benzindene		1		Wikipedia	NIST
Benzine	Gasoline	4		Wikipedia	NIST
Benzoate ester (generic)				Wikipedia
Benzoate ion		2	2	Wikipedia	NIST
Benzofuran				Wikipedia	NIST
Benzoic acid		6	2	Wikipedia	NIST
Benzonitrile		2	3	Wikipedia	NIST
Benzonium ion		1			NIST
Benzophenone		4	3	Wikipedia	NIST
Benzophenone ketyl		1	2		NIST
Benzophenone radical anion		1			NIST
singlet Benzophenone		1	1		NIST
triplet Benzophenone		1	1		NIST
Benzopinacole		1			NIST
1,2-Benzopyrone				Wikipedia	NIST
1,4-Benzoquinone		3	1	Wikipedia	NIST
1,4-Benzoquinone (generic)
Benzoyl benzene		4	3	Wikipedia	NIST
Benzoyl cation			3		NIST
Benzoyl chloride			1	Wikipedia	NIST
Benzoyl peroxide	(C₆H₅COO)2		3	Wikipedia	NIST
Benzoyl radical		1			NIST
Benzoylmethyleconine				Wikipedia	NIST
Benzo[a]anthracene					NIST
Benzo[a]pyrene				Wikipedia	NIST
1-Benzo[b]pyrrole			1	Wikipedia	NIST
Benzpinacol		1			NIST
Benzyl alcohol		5	1	Wikipedia	NIST
Benzyl alcohol (generic)		1		Wikipedia
Benzyl anion			2	Wikipedia	NIST
Benzyl anion (generic)
Benzyl bromide		2	1	Wikipedia	NIST
Benzyl cation			4		NIST
Benzyl cation (generic)
Benzyl cation synthon (generic)		1	1
Benzyl chloride		1		Wikipedia	NIST
Benzyl cyanide				Wikipedia	NIST
Benzyl cyanide anion					NIST
Benzyl diethyl phosphonate		1			NIST
Benzyl ether (generic)			1
Benzyl isocyanide		1		Wikipedia	NIST
Benzyl lithium					NIST
Benzyl radical		1	2		NIST
Benzyl radical (generic)
Benzyl-Nfg complex (generic)		1	1
Benzylamine		1		Wikipedia	NIST
Benzyldiphenyl carbinol		1			NIST
Benzylium ion			4		NIST
Benzylphenylsulfone		1			NIST
Benzylphenylsulfone anion			1	Wikipedia	NIST
Benzyne		3	2	Wikipedia	NIST
BeO	BeO	4	2	Wikipedia	NIST
Berkelium	Bk			Wikipedia	NIST
Beryl	Be₃Al₂Si₆O₁₈		1	Wikipedia
Beryllate ion	[Be(OH)₄]^2–	4			NIST
Beryllium	Be	6	15	Wikipedia	NIST
Beryllium 8	⁸Be	1	1	Wikipedia	NIST
Beryllium amide	Be(NH₂)₂	2			NIST
Beryllium bromide	BeBr₂	2		Wikipedia	NIST
Beryllium carbide	Be₂C	2	1		NIST
Beryllium carbonate	BeCO₃	1	1	Wikipedia	NIST
Beryllium chloride	BeCl₂	2	3	Wikipedia	NIST
Beryllium family (generic)	Group IIa/2 Alkaline Earth Metals			Wikipedia
Beryllium fluoride	BeF₂	2	1	Wikipedia	NIST
Beryllium hydride	BeH₂	2	2		NIST
Beryllium hydroxide	Be(OH)₂	7	5	Wikipedia	NIST
Beryllium iodide	BeI₂	2		Wikipedia	NIST
Beryllium ion	Be²⁺	4	19		NIST
Beryllium methanide	Be₂C	2	1		NIST
Beryllium nitride	Be₃N₂	2	1	Wikipedia	NIST
Beryllium oxide	BeO	4	2	Wikipedia	NIST
Beryllium phosphide	Be₃P₂	2			NIST
Beryllium selenide	BeS	2			NIST
Beryllium silicate	Be₂SiO₄	1			NIST
Beryllium sulfate	BeSO₄	1	2		NIST
Beryllium sulfide	BeS	3			NIST
Beryllium telluride	BeTe	2		Wikipedia	NIST
Beryllium tetrahydroxide ion	[Be(OH)₄]^2–	4			NIST
BeS	BeS	3			NIST
BeSO4	BeSO₄	1	2		NIST
Beta particle	β	32	3	Wikipedia	NIST
BeTe	BeTe	2		Wikipedia	NIST
BF3	BF₃	7	8	Wikipedia	NIST
BF3 etherate		1	2	Wikipedia	NIST
[BF4]-	[BF₄]^–	7	9	Wikipedia	NIST
Bh	Bh			Wikipedia	NIST
BH3	BH₃		2	Wikipedia	NIST
[BH4]-	[BH₄]^–	1	3		NIST
Bi	Bi	1	2	Wikipedia	NIST
Bi(NO3)2	Bi(NO₃)₂	1			NIST
Bi2O3	Bi₂O₃	1	1	Wikipedia	NIST
Bi2S3	Ba₂S₃	1		Wikipedia	NIST
BI3	BI₃	2	2	Wikipedia	NIST
Bi3+	Bi³⁺		2		NIST
[BI4]-	[BI₄]^–				NIST
Bi5+	Bi⁵⁺				NIST
Bibenzyl		1			NIST
Bicarbonate ion	[HCO₃]^–	4	5		NIST
Bicyclio[4.1.0]heptane		1			NIST
Bicyclo[2.2.1]hepta-2,5-diene		1	1	Wikipedia	NIST
(Bicyclo[2.2.1]hepta-2,5-diene)rhodium(I) chloride dimer		1			NIST
Bidentate base (generic)				Wikipedia
Bidentate ligand (AS/A2 generic)			2	Wikipedia
BiF3	BiF₃				NIST
BiF5	BiF₅	1			NIST
Bifluoride ion	[FHF]^–	3	2	Wikipedia	NIST
Biformyl		1	1	Wikipedia	NIST
Biologically Active Substance (generic)				Wikipedia
Biotite	K(Mg,Fe)₃ (AlSi₃O₁₀) (F,OH)₂			Wikipedia
Biphenyl		2		Wikipedia	NIST
Biphenyl, o-lithiated		1	1		NIST
bipy			2	Wikipedia	NIST
2,2-Bipyridine			2	Wikipedia	NIST
Bis(2-chloroethyl) sulfide	S(CH₂CH₂Cl)₂	1		Wikipedia	NIST
bis(2-methyloxyethyl) ether			2	Wikipedia	NIST
Bis(butadiene)iron monocarbonyl		1			NIST
Bis(cyclopentadienyl)-zirconium chloride hydride		1			NIST
Bis-allyl palladium(II) chloride		1			NIST
Bis-propene palladium(II) chloride		1			NIST
bisMethylsulfoxide		3	5	Wikipedia	NIST
Bismuth	Bi	1	2	Wikipedia	NIST
Bismuth 209	²⁰⁹Bi	1		Wikipedia	NIST
Bismuth 210	²¹⁰Bi	1	1	Wikipedia	NIST
Bismuth 211	²¹¹Bi		2	Wikipedia	NIST
Bismuth 212	²¹²Bi	2	2	Wikipedia	NIST
Bismuth 213	²¹³Bi	1	2	Wikipedia	NIST
Bismuth 214	²¹⁴Bi	2	2	Wikipedia	NIST
Bismuth amalgam	Bismuth Amalgam			Wikipedia	NIST
Bismuth glance	Bi₂S₃			Wikipedia
Bismuth ion	Bi³⁺		2		NIST
Bismuth nitrate	Bi(NO₃)₂	1			NIST
Bismuth pentafluoride	BiF₅	1			NIST
Bismuth sulfide	Ba₂S₃	1		Wikipedia	NIST
Bismuth trifluoride	BiF₃				NIST
Bismuth(III) oxide	Bi₂O₃	1	1	Wikipedia	NIST
Bismuth, native	Bi _native			Wikipedia
Bismuth(V) Ion	Bi⁵⁺				NIST
Bismuthinite	Bi₂S₃			Wikipedia
Bisphenol A		1	1	Wikipedia	NIST
Bisphenol A glycidyl ether	Bisphenol A Glycidyl Ether				NIST
Bisulfate ion	[HSO₄]^–	17	3		NIST
Bisulfite ion	[HSO₃]^–	3	8		NIST
Bitumen	Bitumen	1		Wikipedia	NIST
Biuret		1		Wikipedia	NIST
Bivinyl, s-cis		1	9	Wikipedia	NIST
Bivinyl, s-trans		8	12	Wikipedia	NIST
Bk	Bk			Wikipedia	NIST
Black gold	Crude Oil		13	Wikipedia
Black Jack	ZnS		1	Wikipedia
Black powder	75% KNO₃, 15% S, 10% C ^gunpowder	1	1	Wikipedia	NIST
Bleach	NaOCl(aq)	4	5	Wikipedia	NIST
Bleaching powder	Ca(OCl)₂ .2H₂O	1		Wikipedia	NIST
Blende	ZnS		1	Wikipedia
Blue gold	Blue Gold				NIST
Blue john	CaF₂			Wikipedia
BN	BN_x ^Hexagonal	5	1	Wikipedia	NIST
(BN)n	c-BN	1		Wikipedia	NIST
[BO2]-	[BO₂]^– [B₃O₆]^3–		2	Wikipedia	NIST
[BO3]3-	[BO₃]^3–			Wikipedia	NIST
Boehmite	AlO(OH)			Wikipedia
Bohrium	Bh			Wikipedia	NIST
Bone ash	Ca₃(PO₄)₂	2	3	Wikipedia	NIST
Boracic acid	H₃BO₃	10	9	Wikipedia	NIST
Borane	BH₃		2	Wikipedia	NIST
Borane, disiamyl		2	1		NIST
Borane, trialkyl (RCH2CH2)3B (generic)		3		Wikipedia
Borane, triethyl	(CH₃CH₂)₃B	1		Wikipedia	NIST
Borane, trimethyl	(CH₃)₃B	1			NIST
Borane/ammonia complex	[H₃N–BH₂–NH₃]⁺[BH₄]^–	1	1		NIST
Borane/Methylsulfide complex	(CH₃)₂S→BH₃	1	1	Wikipedia	NIST
Borane/THF Complex		1	10		NIST
Borane/THF Complex, 1.0 Molar solution in THF	BF₃←THF ^{in THF}		2		NIST
Borate ion	[B₄O₇]^2–		1	Wikipedia	NIST
Borate ion, meta	[BO₂]^– [B₃O₆]^3–		2	Wikipedia	NIST
Borate ion, ortho	[BO₃]^3–			Wikipedia	NIST
Borax	Na₂[B₄O₅(OH)₄] .8H₂O	1	4	Wikipedia	NIST
Borax (mineral)	Na₂B₄O₇ .10H₂O		1	Wikipedia
Borax glass	Na₂B₄O₇	1	1	Wikipedia	NIST
Borazine		2	1	Wikipedia	NIST
Borazon	c-BN	1		Wikipedia	NIST
Borderline Lewis acid (generic)				Wikipedia
Borderline Lewis base (generic)				Wikipedia
Boric acid, meta	HBO₂	2	1	Wikipedia	NIST
Boric acid, ortho	H₃BO₃	10	9	Wikipedia	NIST
Boric anhydride	B₂O₃	3	14	Wikipedia	NIST
Boric oxide	B₂O₃	3	14	Wikipedia	NIST
Bornite	Cu₅FeS₄		2	Wikipedia
Borohydride ion	[BH₄]^–	1	3		NIST
Borohydride, alkyl ion (generic)	[RBH₃]^–
Borohydride, dialkoxy ion (generic)	[(RO)₂BH₂]^–
Borohydride, dialkyl ion (generic)	[R₂BH₂]^–
Borohydride, monoalkoxy ion (generic)	[ROBH₃]^–
Borohydride, trialkoxy ion (generic)	[(RO)₃BH]^–
Borohydride, trialkyl ion (generic)	[R₃BH]^–
Boron	B	6	11	Wikipedia	NIST
Boron carbide	B₄C	4		Wikipedia	NIST
Boron fiber	Boron Fiber	1			NIST
Boron group (generic)	Group IIIa/13 Boron Group
Boron hydride	B₂H₆	6	14	Wikipedia	NIST
Boron nitride, cubic	c-BN	1		Wikipedia	NIST
Boron nitride, hexagonal	BN_x ^Hexagonal	5	1	Wikipedia	NIST
Boron phosphate	BPO₄	1			NIST
Boron sesquioxide	B₂O₃	3	14	Wikipedia	NIST
Boron sulfide	B₂S₃	1		Wikipedia	NIST
Boron tribromide	BBr₃	2	2	Wikipedia	NIST
Boron trichloride	BCl₃	3	5	Wikipedia	NIST
Boron trifluoride	BF₃	7	8	Wikipedia	NIST
Boron trifluoride etherate		1	2	Wikipedia	NIST
Boron triiodide	BI₃	2	2	Wikipedia	NIST
Boron trioxide	B₂O₃	3	14	Wikipedia	NIST
Boson	Boson			Wikipedia
Bosonic hadron	Bosonic Hadron			Wikipedia
Bottom quark	b			Wikipedia
Boulangerite	Pb₅Sb₄S₁₁			Wikipedia
Bournonite	PbCuSbS₃			Wikipedia
BPO4	BPO₄	1			NIST
BR	Polybutadiene Rubber	1		Wikipedia	NIST
Br•	Br•	2	1		NIST
Brønsted acid, hydroxy (generic)	X–OH ^{Brønsted acid}
Brønsted Acid, non-hydroxy (generic)	X–H^δ+ ^{Brønsted acid}
Brønsted acid, oxonium (generic)	[X=O–H]⁺
Brønsted acid, stabilised carbanion (generic)		1
Brønsted acid, strong (AS/A2 generic)				Wikipedia
Brønsted acid, weak (AS/A2 generic)				Wikipedia
Brønsted base, strong (AS/A2 generic)				Wikipedia
Brønsted base, weak (AS/A2 generic)				Wikipedia
Br+	Br⁺		18		NIST
Br-	Br^–	32	44	Wikipedia	NIST
Br2	Br₂	13	55	Wikipedia	NIST
Br2(g)	Br₂(g)	1		Wikipedia	NIST
Br2SO	SOBr₂	1	1	Wikipedia	NIST
[Br3]+	[Br₃]⁺	1			NIST
Brain sugar		1		Wikipedia	NIST
Brass, naval	Naval Brass				NIST
Brass, ordinary yellow	Brass			Wikipedia	NIST
Braunite	3Mn₂O₃ .MnSiO₃			Wikipedia
BrCH2CH2Br		1	4	Wikipedia	NIST
BrCl	BrCl	1	1	Wikipedia	NIST
BrCN	N≡C–Br		1	Wikipedia	NIST
BrF	BrF		1	Wikipedia	NIST
BrF3	BrF₃	3	2	Wikipedia	NIST
BrF5	BrF₅	1	4	Wikipedia	NIST
[BrF6]-	[BrF₆]^–	1			NIST
BrI	I–Br	1	1		NIST
Bridge bond (generic)				Wikipedia
Brimstone	S _native		1	Wikipedia
Brine	Brine	1	1	Wikipedia	NIST
Brine, seawater	Seawater Brine	1	3	Wikipedia	NIST
Britannia metal, English	Britannia Metal				NIST
BrO2	BrO₂	1	1		NIST
[BrO3]-	[BrO₃]^–	3	3	Wikipedia	NIST
[BrO4]-	[BrO₄]^–		1	Wikipedia	NIST
Bromane	HBr	22	20	Wikipedia	NIST
Bromate ion	[BrO₃]^–	3	3	Wikipedia	NIST
Bromenium ion	Br⁺		18		NIST
Bromic acid	HBrO₃	2		Wikipedia	NIST
Bromide ion	Br^–	32	44	Wikipedia	NIST
Bromide, 1° alkyl (generic)	R–CH₂–Br	1	2
Bromide, 2° alkyl (generic)		2	1
Bromide, organic (generic)	RBr	5	8	Wikipedia
Bromine	Br₂	13	55	Wikipedia	NIST
Bromine cation	Br⁺		18		NIST
Bromine chloride	BrCl	1	1	Wikipedia	NIST
Bromine dioxide	BrO₂	1	1		NIST
Bromine fluoride	BrF		1	Wikipedia	NIST
Bromine hexafluoride ion	[BrF₆]^–	1			NIST
Bromine hydride	HBr	22	20	Wikipedia	NIST
Bromine monochloride	BrCl	1	1	Wikipedia	NIST
Bromine pentafluoride	BrF₅	1	4	Wikipedia	NIST
Bromine radical	Br•	2	1		NIST
Bromine tetrabromoferrate	Br⁺ [FeBr₄]^–	1	1		NIST
Bromine trifluoride	BrF₃	3	2	Wikipedia	NIST
Bromine, gas	Br₂(g)	1		Wikipedia	NIST
alpha-Bromo ketone (generic)		1
alpha-Bromo toluene		2	1	Wikipedia	NIST
2-Bromo-1-(4-nitrophenyl)ethanone		1	1		NIST
1-Bromo-2,2-dimethylpropane			1		NIST
2-Bromo-2-methylbutane		2	1		NIST
2-Bromo-2-methylpropane	(CH₃)₃CBr	4	2		NIST
(3S)-3-Bromo-3-methylhexane			1		NIST
2-Bromo-4-nitroacetophenone		1	1		NIST
Bromoacetate ion	[BrCH₂COO]^–		1		NIST
Bromoacetic acid	CH₂BrCOOH	1		Wikipedia	NIST
1-Bromoadamantane			1		NIST
alpha-Bromoaldehyde (generic)		2
Bromobenzene		4	1	Wikipedia	NIST
1-Bromobutane			3	Wikipedia	NIST
2-Bromobutane			2		NIST
Bromocyclopropane			1		NIST
Bromoethane	CH₃CH₂Br	9	2	Wikipedia	NIST
Bromoethanoate ion	[BrCH₂COO]^–		1		NIST
Bromoethene		1		Wikipedia	NIST
(1-Bromoethyl)benzene		1	1		NIST
Bromohydrin (generic)
Bromomethane	CH₃Br	3	3	Wikipedia	NIST
alpha-Bromomethyl ketone (generic)		2
Bromomethylmethylcarbenium ion		1	1	Wikipedia	NIST
1-Bromo-2-methylpropane			3		NIST
Bromonium ion	[BrH₂]⁺	1			NIST
Bromonium ion, alkyl (generic)	[R–BrH]⁺	2
Bromonium ion, Ethenyl					NIST
endo 2-Bromonorbornane		1			NIST
1-Bromopropane radical		1	1		NIST
1-Bromopropane		3		Wikipedia	NIST
2-Bromopropane	(CH₃)₂CHBr	4	8		NIST
(2R)-2-Bromopropanoate ion		1	1		NIST
(2R)-2-Bromopropanoic acid			2		NIST
1-Bromopropylcarbocation		1	1	Wikipedia	NIST
N-Bromosuccinimide				Wikipedia	NIST
Bromosulfonic acid		1			NIST
Bromothymol blue	Bromothymol Blue			Wikipedia	NIST
Bromyrite	AgBr	6	6	Wikipedia	NIST
Bronze, aluminum	Aluminum Bronze			Wikipedia	NIST
Bronze, commercial	Commercial Bronze			Wikipedia	NIST
Bronze, gun metal	Gunmetal			Wikipedia	NIST
Bronze, manganese	Manganese Bronze				NIST
Brookite	TiO₂		1	Wikipedia
[BrO]-	[BrO]^–	1	2		NIST
BrSO3H		1			NIST
Brucite	Mg(OH)₂			Wikipedia
Bu3P		1		Wikipedia	NIST
Buckminsterfullerene	C₆₀		1	Wikipedia	NIST
Buffer (AS/A2 generic)				Wikipedia
BuLi		2		Wikipedia	NIST
secBuLi		2		Wikipedia	NIST
tBuLi		2		Wikipedia	NIST
Buna S	Styrene-Butadiene Rubber	1		Wikipedia	NIST
BuNC		1		Wikipedia	NIST
BuNH2		1	1	Wikipedia	NIST
Burnt lime	CaO	7	6	Wikipedia	NIST
But-1-ene		1	5	Wikipedia	NIST
But-1-ylium ion			3		NIST
But-1-yne	CH₃CH₂C≡CH			Wikipedia	NIST
cis-But-2-ene		3	3	Wikipedia	NIST
trans-But-2-ene		3	3	Wikipedia	NIST
But-2-yne	CH₃–C≡C–CH₃			Wikipedia	NIST
1,3-Butadiene, s-cis		1	9	Wikipedia	NIST
1,3-Butadiene, s-trans		8	12	Wikipedia	NIST
Butadiene iron tricarbonyl		1			NIST
Butadiene sulfone		1	1	Wikipedia	NIST
1,2-Butadiene		1		Wikipedia	NIST
1,3-Butadiene, 2,3-dimethyl			1		NIST
Butadiene, 1,3-methoxy			2		NIST
Butan-1-amine		1	1	Wikipedia	NIST
Butan-1-ide anion			3	Wikipedia	NIST
Butan-1-ol		4	2	Wikipedia	NIST
Butan-2-ide anion			2		NIST
Butan-2-ol		1	2	Wikipedia	NIST
Butanal		5	6	Wikipedia	NIST
Butanal cyanohydrin		1			NIST
Butane		4	8	Wikipedia	NIST
Butane-1,4-diamine		2		Wikipedia	NIST
Butane-1,4-diol		4	3		NIST
Butane-2-bromide			2		NIST
butanedinitrile		4	2		NIST
Butanedioic acid		2	2	Wikipedia	NIST
1,3-Butanediol		1	1		NIST
1,4-Butanediol		4	3		NIST
Butanimide		2		Wikipedia	NIST
Butanoate ion			1		NIST
Butanoic acid		6		Wikipedia	NIST
1-Butanol		4	2	Wikipedia	NIST
2-Butanol		1	2	Wikipedia	NIST
tertiary Butanol	(CH₃)₃COH	7	11	Wikipedia	NIST
Butanone		4	2	Wikipedia	NIST
Butanone cyanohydrin		1	1		NIST
3-Buten-1-yne		1	1		NIST
trans-2-Butenal		1	3	Wikipedia	NIST
1-Butene		1	5	Wikipedia	NIST
cis 2-Butene		3	3	Wikipedia	NIST
trans 2-Butene		3	3	Wikipedia	NIST
trans 2-Butene-1,4-diol		1			NIST
cis-Butenedioic acid		1	2	Wikipedia	NIST
trans Butenedioic acid		3	2	Wikipedia	NIST
trans 2-Butenoic acid		1		Wikipedia	NIST
tert Butoxide, potassium		2	2		NIST
Butrophenone		2			NIST
Butter	Butter		1	Wikipedia
Butter of antimony	SbCl₃	3	1		NIST
Butter of arsenic	AsCl₃	2	1	Wikipedia	NIST
Butter of zinc	ZnCl₂	3	1	Wikipedia	NIST
iso-Butyl alcohol		4	1	Wikipedia	NIST
n-Butyl alcohol		4	2	Wikipedia	NIST
sec-Butyl alcohol		1	2	Wikipedia	NIST
Isobutyl bromide			3		NIST
n-Butyl bromide			3	Wikipedia	NIST
sec-Butyl bromide			2		NIST
tertiary-Butyl bromide	(CH₃)₃CBr	4	2		NIST
Butyl cyanide		1			NIST
tertiary Butyl methyl ether		1		Wikipedia	NIST
Butyl rubber	Butyl Rubber	1	1	Wikipedia	NIST
n-Butyl function (generic)				Wikipedia
tertiary Butyl alkoxide	[(CH₃)₃C–O]^–	1	2		NIST
1-Butylamine		1	1	Wikipedia	NIST
n-Butylamine		1	1	Wikipedia	NIST
tertary Butylamine	(CH₃)₃C–NH₂		1		NIST
1-Butylammonium ion		2			NIST
n Butyl anion			3	Wikipedia	NIST
sec Butyl anion			2		NIST
tertiary Butyl carbanion	[(CH₃)₃C]^–		6	Wikipedia	NIST
1-Butyl carbocation			3		NIST
tertiary Butyl carbocation		2	10		NIST
tertiary Butyl chloride		5	1		NIST
cis (4- t Butylcyclo hexyl) trimethyl ammonium ion			1		NIST
trans (4-tertiary Butylcyclohexyl) trimethyl ammonium ion			1		NIST
cis 4-tertiary Butyl cyclohexanol		1			NIST
4-tertiary Butylcyclohexene		1			NIST
1,3-Butylene glycol		1	1		NIST
tertiary Butyl fluoride		2			NIST
tertiary-Butylhydroperoxide		1	1		NIST
tertiary Butyl iodide	(CH₃)₃CI	4			NIST
n-Butylisocyanide		1		Wikipedia	NIST
tertiary Butyl isocyanide		1		Wikipedia	NIST
n-Butyllithium		2		Wikipedia	NIST
sec-Butyllithium		2		Wikipedia	NIST
tert-Butyllithium		2		Wikipedia	NIST
tertiary Butyl nitrite		1			NIST
tertiary Butyl oxonium ion		2			NIST
tertiary Butyl radical	(CH₃)₃C•	1			NIST
n Butyl thio anion					NIST
1-Butyne	CH₃CH₂C≡CH			Wikipedia	NIST
2-Butyne	CH₃–C≡C–CH₃			Wikipedia	NIST
2-Butyne-1,4-diol		1	2		NIST
Butyraldehyde		5	6	Wikipedia	NIST
Butyric acid		6		Wikipedia	NIST
iso-Butyric acid		1			NIST
gamma Butyrolactam		1		Wikipedia	NIST
gamma-Butyrolactone		2	3	Wikipedia	NIST
[Bu]-			3	Wikipedia	NIST
C	C	8	55	Wikipedia	NIST
C (cysteine)		1	1	Wikipedia	NIST
C (cytosine)	Cytosine C		1	Wikipedia	NIST
C10H8		1	7	Wikipedia	NIST
C14H30			1	Wikipedia	NIST
C15H32			1	Wikipedia	NIST
C21H44			1	Wikipedia	NIST
C2F6	C₂F₆	1		Wikipedia	NIST
[C2H3]-			1	Wikipedia	NIST
C2H4	H₂C=CH₂	21	39	Wikipedia	NIST
C2H4O		2	13	Wikipedia	NIST
(C2H5O)2SO2	(C₂H₅O)₂SO₂	1	1	Wikipedia	NIST
[C2H5]-	[CH₃CH₂]^–		7	Wikipedia	NIST
CH3CH3	CH₃CH₃	5	3	Wikipedia	NIST
C2H6O	CH₃CH₂OH	15	34	Wikipedia	NIST
C2H6O2		6	9	Wikipedia	NIST
[C2]2-	^–C≡C^–		10		NIST
C32	C₃₂			Wikipedia	NIST
[C3H3]-			1	Wikipedia	NIST
C3H4		1		Wikipedia	NIST
C3H4	H₂C=C=CH₂			Wikipedia	NIST
[C3H5]+			2		NIST
[C3H5]-			2	Wikipedia	NIST
[C3H5]-			1	Wikipedia	NIST
C3H6	CH₃–CH=CH₂	13	29	Wikipedia	NIST
C3H6		2		Wikipedia	NIST
[C3H7]-			3	Wikipedia	NIST
C3O2	O=C=C=C=O	1	2	Wikipedia	NIST
C4-	C^4–		2	Wikipedia	NIST
C44	C₄₄			Wikipedia	NIST
C4H10		4	8	Wikipedia	NIST
C4H8		2	1	Wikipedia	NIST
C5H10		2		Wikipedia	NIST
C5H5N		2	4	Wikipedia	NIST
[C5H5]-			6	Wikipedia	NIST
[C5H9]-			2	Wikipedia	NIST
C60	C₆₀		1	Wikipedia	NIST
(C6H11)3P				Wikipedia	NIST
[C6H11]-			1	Wikipedia	NIST
C6H12		5	7	Wikipedia	NIST
C6H12N4		1	2	Wikipedia	NIST
C6H12O6		1		Wikipedia	NIST
C6H15As	(CH₃H₂)₃As		1		NIST
[(C6H5)2CH]+			1		NIST
(C6H5)2NH		1	1	Wikipedia	NIST
[(C6H5)2N]-			1	Wikipedia	NIST
(C6H5)3C•	(C₆H₅)₃C•	1	1	Wikipedia	NIST
(C6H5)3CCl	(C₆H₅)₃CCl	2	1		NIST
(C6H5)3CH		1		Wikipedia	NIST
(C6H5)3COH		1		Wikipedia	NIST
[(C6H5)3C]+			2		NIST
[(C6H5)3C]-			2	Wikipedia	NIST
(C6H5)3P		1	4	Wikipedia	NIST
(C6H5)3PO	(C₆H₅)₃P=O	1		Wikipedia	NIST
C6H5AsH2		1			NIST
C6H5Br		4	1	Wikipedia	NIST
C6H5C6H5		2		Wikipedia	NIST
C6H5CH2Br		2	1	Wikipedia	NIST
C6H5CH2CH3		4	1	Wikipedia	NIST
C6H5CH2Cl		1		Wikipedia	NIST
C6H5CH2CN				Wikipedia	NIST
C6H5CH2Li					NIST
C6H5CH2NC		1		Wikipedia	NIST
C6H5CH2NH2		1		Wikipedia	NIST
C6H5CH2OH		5	1	Wikipedia	NIST
[C6H5CH2]+			4		NIST
[C6H5CH2]-			2	Wikipedia	NIST
C6H5CH3		6	16	Wikipedia	NIST
C6H5CH=CH2		2	4	Wikipedia	NIST
C6H5CH=CHC6H5			1	Wikipedia	NIST
C6H5CHO		2	6	Wikipedia	NIST
C6H5Cl		5	3	Wikipedia	NIST
C6H5CN		2	3	Wikipedia	NIST
C6H5COCH3		3	2	Wikipedia	NIST
C6H5COCl			1	Wikipedia	NIST
C6H5CONH2				Wikipedia	NIST
C6H5COOH		6	2	Wikipedia	NIST
C6H5COOR				Wikipedia
[C6H5COO]-		2	2	Wikipedia	NIST
[C6H5CO]+			3		NIST
C6H5F			2	Wikipedia	NIST
C6H5I		3		Wikipedia	NIST
C6H5Li		2	2		NIST
C6H5N(CH3)2			2		NIST
[C6H5N2]+		2	11		NIST
C6H5N=NC6H5					NIST
C6H5NH2		8	8	Wikipedia	NIST
[C6H5NH3]+		2			NIST
C6H5NHCH3				Wikipedia	NIST
[C6H5NH]-			1	Wikipedia	NIST
C6H5NO			1	Wikipedia	NIST
C6H5NO2		3	6	Wikipedia	NIST
C6H5OC6H5					NIST
C6H5OCH3			2	Wikipedia	NIST
C6H5OH		8	10	Wikipedia	NIST
[C6H5O]-		2	7		NIST
C6H5PH2				Wikipedia	NIST
C6H5SeBr		2			NIST
[C6H5Se]+			1		NIST
[C6H5Se]-		1	2		NIST
C6H5SH		1		Wikipedia	NIST
[C6H5SiH2]-			1		NIST
C6H5SO2CH3		1			NIST
[C6H5SO2]-			2		NIST
C6H5SO3H		2	1		NIST
[C6H5SO3]-			1		NIST
[C6H5]-			11	Wikipedia	NIST
[C6H5]-			5		NIST
C6H6		11	42	Wikipedia	NIST
[C₆H₆As]^-			1		NIST
C6H6N2O2		1	3	Wikipedia	NIST
C70	C₇₀			Wikipedia	NIST
[C7H7]+			1	Wikipedia	NIST
[C7H7]-			1	Wikipedia	NIST
C8Cs	C₈Cs	1		Wikipedia	NIST
[C8H8]2-			1		NIST
C8K	C₈K	1		Wikipedia	NIST
C8Rb	C₈Rb	1		Wikipedia	NIST
C9H20		1		Wikipedia	NIST
Ca	Ca	2	15	Wikipedia	NIST
Ca(BO2)2	Ca(BO₂)₂				NIST
Ca(CH3COO)2	Ca(CH₃COO)₂	1		Wikipedia	NIST
Ca(HCO3)2	Ca(HCO₃)₂	1	3	Wikipedia	NIST
Ca(NH2)2	Ca(NH₂)₂	2			NIST
Ca(OCl)2	Ca(OCl)₂ .2H₂O	1		Wikipedia	NIST
Ca(OH)2	Ca(OH)₂	7	14	Wikipedia	NIST
Ca(OH)2(aq)	Ca(OH)₂(aq)	2	1	Wikipedia	NIST
Ca2+	Ca²⁺	5	29		NIST
Ca3(PO4)2	Ca₃(PO₄)₂	2	3	Wikipedia	NIST
Ca3N2	Ca₃N₂	2	1	Wikipedia	NIST
Ca3P2	Ca₃P₂	2	1	Wikipedia	NIST
CaBr2	CaBr₂	2	1	Wikipedia	NIST
CaC2	CaC₂	3	3	Wikipedia	NIST
CaC2O4	CaC₂O₄	1		Wikipedia	NIST
CaCl2	CaCl₂	9		Wikipedia	NIST
CaCO3	CaCO₃	10	6	Wikipedia	NIST
Cadmium	Cd	1		Wikipedia	NIST
Cadmium bromide	CdBr₂	1		Wikipedia	NIST
Cadmium chloride	CdCl₂			Wikipedia	NIST
Cadmium fluoride	CdF₂			Wikipedia	NIST
Cadmium iodide	CdI₂			Wikipedia	NIST
Cadmium ion	Cd²⁺		3		NIST
Cadmium oxide	CdO			Wikipedia	NIST
Cadmium sulfide	CdS	1		Wikipedia	NIST
Caesium	Cs	1	20	Wikipedia	NIST
Caesium carbonate	Cs₂CO₃	1		Wikipedia	NIST
CaF2	CaF₂	3	5	Wikipedia	NIST
CaH2	CaH₂	2	2	Wikipedia	NIST
CaI2	CaI₂	2		Wikipedia	NIST
Calamine	ZnCO₃		1	Wikipedia
Calcinated baryta	BaO	4	3	Wikipedia	NIST
Calcite	CaCO₃			Wikipedia
Calcium	Ca	2	15	Wikipedia	NIST
Calcium acetate	Ca(CH₃COO)₂	1		Wikipedia	NIST
Calcium amide	Ca(NH₂)₂	2			NIST
Calcium bicarbonate	Ca(HCO₃)₂	1	3	Wikipedia	NIST
Calcium bromide	CaBr₂	2	1	Wikipedia	NIST
Calcium carbide	CaC₂	3	3	Wikipedia	NIST
Calcium carbimide	CaNCN	1	3	Wikipedia	NIST
Calcium carbonate	CaCO₃	10	6	Wikipedia	NIST
Calcium chloride	CaCl₂	9		Wikipedia	NIST
Calcium cyanamide	CaNCN	1	3	Wikipedia	NIST
Calcium fluoride	CaF₂	3	5	Wikipedia	NIST
Calcium hydrate	Ca(OH)₂	7	14	Wikipedia	NIST
Calcium hydride	CaH₂	2	2	Wikipedia	NIST
Calcium hydrogen carbonate	Ca(HCO₃)₂	1	3	Wikipedia	NIST
Calcium hydroxide	Ca(OH)₂	7	14	Wikipedia	NIST
Calcium hydroxide, saturated soution	Ca(OH)₂(aq)	2	1	Wikipedia	NIST
Calcium hypochlorite	Ca(OCl)₂ .2H₂O	1		Wikipedia	NIST
Calcium iodide	CaI₂	2		Wikipedia	NIST
Calcium ion	Ca²⁺	5	29		NIST
Calcium metaborate	Ca(BO₂)₂				NIST
Calcium nitride	Ca₃N₂	2	1	Wikipedia	NIST
Calcium oxalate	CaC₂O₄	1		Wikipedia	NIST
Calcium oxide	CaO	7	6	Wikipedia	NIST
Calcium phosphate, tribasic	Ca₃(PO₄)₂	2	3	Wikipedia	NIST
Calcium phosphide	Ca₃P₂	2	1	Wikipedia	NIST
Calcium selenide	CaSe	2			NIST
Calcium silicate	CaSiO₃	4		Wikipedia	NIST
Calcium sulfate	CaSO₄	9	4	Wikipedia	NIST
Calcium sulfate dihydrate	CaSO₄ .2H₂O	2	1	Wikipedia	NIST
Calcium sulfate hemihydrate	CaSO₄ .½H₂O	1	1	Wikipedia	NIST
Calcium sulfide	CaS	4		Wikipedia	NIST
Calcium sulfite	CaSO₃.x(H₂O)	2		Wikipedia	NIST
Calcium telluride	CaTe	2			NIST
Calcium tungstate	CaWO₄	1		Wikipedia	NIST
Californium	Cf			Wikipedia	NIST
Calomel	Hg₂Cl₂	1	1	Wikipedia	NIST
cAMP	cAMP			Wikipedia	NIST
(1R)-(-)-10-Camphorsulfonic acid		1	1		NIST
CaNCN	CaNCN	1	3	Wikipedia	NIST
Cancrinite	Na₆Ca₂[(CO₃)₂ \| Al₆Si₆O₂₄] .2H₂O			Wikipedia
Cane sugar	Sucrose		1	Wikipedia	NIST
CaO	CaO	7	6	Wikipedia	NIST
Caprolactam		2	1	Wikipedia	NIST
Caprolactone		1		Wikipedia	NIST
Carbamamidine			2	Wikipedia	NIST
Carbamate (generic)				Wikipedia	NIST
Carbamide		4	5	Wikipedia	NIST
Carbamylurea		1		Wikipedia	NIST
Carbane	CH₄	14	32	Wikipedia	NIST
Carbanion (generic)	R^–	2	13	Wikipedia
1° Carbanion (generic)			2
2° Carbanion (generic)			1
3° Carbanion (generic)	[R₃C]^–		1	Wikipedia
Carbanion, stabilised (generic)			1
Carbanion, acetone enolate			2	Wikipedia	NIST
Carbanion, acetonitrile	N≡C–CH₂^–		1	Wikipedia	NIST
Carbanion, acetophenone lithium enolate			2		NIST
Carbanion, acetylacetone			1	Wikipedia	NIST
Carbanion, acetylide (generic)	R–C≡C^–	1	2	Wikipedia
Carbanion, alpha-aldehyde (generic)			2
Carbanion, benzene			11	Wikipedia	NIST
Carbanion, benzyl			2	Wikipedia	NIST
Carbanion, benzylphenylsulfone			1	Wikipedia	NIST
Carbanion, n-butyl			3	Wikipedia	NIST
Carbanion, sec-butyl			2		NIST
Carbanion, t-butyl	[(CH₃)₃C]^–		6	Wikipedia	NIST
Carbanion, carboxylate stabilised (generic)			1
Carbanion, cyano phenyl					NIST
Carbanion, cyclobutyl			1	Wikipedia	NIST
Carbanion, cyclohexanone enolate			1	Wikipedia	NIST
Carbanion, cyclohexenyl			1	Wikipedia	NIST
Carbanion, cyclohexyl			1	Wikipedia	NIST
Carbanion, cyclopentyl			2	Wikipedia	NIST
Carbanion, cyclopropenyl			1	Wikipedia	NIST
Carbanion, cyclopropyl			1	Wikipedia	NIST
Carbanion, diethyl malonate			1		NIST
Carbanion, dimsyl			1	Wikipedia	NIST
Carbanion, dinitro	[(NO₂)₂CH]^–		1	Wikipedia	NIST
Carbanion, diphenyl			1	Wikipedia	NIST
Carbanion, 1,3-dithiane (generic)			1	Wikipedia
Carbanion, enolate (generic)		1	5	Wikipedia
Carbanion, ester stabilised (generic)
Carbanion, ethenyl			1	Wikipedia	NIST
Carbanion, ethyl	[CH₃CH₂]^–		7	Wikipedia	NIST
Carbanion, ethyl acetate			3	Wikipedia	NIST
Carbanion, ethyl acetoacetate					NIST
Carbanion, fluorene			1	Wikipedia	NIST
Carbanion, hydrogen acetylide	HC≡C^–	1	2	Wikipedia	NIST
Carbanion, isopropyl			3	Wikipedia	NIST
Carbanion, beta-ketoaldehyde (generic)			1
Carbanion, beta-ketoester (generic)			1	Wikipedia
Carbanion, beta-ketone (generic)			1	Wikipedia
Carbanion, lithium 2-norbornyl			2		NIST
Carbanion, malonate (generic)			1	Wikipedia
Carbanion, malononitrile	[(CN)₂CH]^–		1	Wikipedia	NIST
Carbanion, methyl	[CH₃]^–		12	Wikipedia	NIST
Carbanion, methyl ketone enolate (generic)			3	Wikipedia
Carbanion, methyl thioether (generic)	[R–S–CH₂]^–	1	1
Carbanion, nitrile stabilised (generic)			1
Carbanion, nitro stabilised (generic)			1	Wikipedia
Carbanion, phenyl			2	Wikipedia	NIST
Carbanion, phenyl (generic)
Carbanion, phenylacetylide			1	Wikipedia	NIST
Carbanion, phosphonate stabilised (generic)		1	1
Carbanion, propenyl			2	Wikipedia	NIST
Carbanion, n-propyl			2		NIST
Carbanion, tricyano	[(CN)₃C]^–		1	Wikipedia	NIST
Carbanion, triphenyl			2	Wikipedia	NIST
Carbanion, vinyl (generic)			3
Carbaryl		2		Wikipedia	NIST
Carbene	CH₂	3	10	Wikipedia	NIST
Carbene synthon (generic)			1
Carbene, alkyl (generic)	R–C–H		1	Wikipedia
Carbene, dialkyl (generic)	R–C–R	3		Wikipedia
Carbene, dichloro	CCl₂	2		Wikipedia	NIST
Carbenium ion	[CH₃]⁺	2	9		NIST
Carbenium ion (generic)	R⁺	2	32	Wikipedia
Carbenium ion synthon, alpha-keto (generic)		1
Carbenium ion synthon, acyl (generic)		1	10
Carbenium ion synthon, alkyl (generic)	R–Nfg	1	7
Carbenium ion synthon, 1° alkyl (generic)	RCH₂–Nfg	1
Carbenium ion synthon, 2° alkyl (generic)	(R)₂CH–Nfg	1
Carbenium ion synthon, 3° alkyl (generic)	(R)₃C–Nfg	1
Carbenium ion synthon, allylic (generic)		1
Carbenium ion synthon, benzylic (generic)		1	1
Carbenium ion synthon, cyclopropylmethyl (generic)		1
Carbenium ion synthon, methyl (generic)	CH₃–Nfg	1
Carbenium ion synthon, propargylic (generic)		1
Carbenium ion, alpha-keto (generic)			1
Carbenium ion, alpha-cyclopropyl			1		NIST
Carbenium ion, alkoxy (generic)			2
Carbenium ion, alkyl (generic)	[RCH₂CH₂]⁺		6
Carbenium ion, alkyl alkoxy hydroxy (generic)		1
Carbenium ion, alkyl amino hydroxy (generic)		1
Carbenium ion, alkyl dihydroxy (generic)		1
Carbenium ion, allyl			2		NIST
Carbenium ion, beta-amino (generic)			2
Carbenium ion, beta-ether (generic)			2
Carbenium ion, beta-thioether (generic)			2
Carbenium ion, benzyl			4		NIST
Carbenium ion, dialkoxy (generic)			2
Carbenium ion, dialkyl (generic)	[R₂CH]⁺		3
Carbenium ion, dialkyl hydroxy (generic)		1
Carbenium ion, diamino hydroxy		1			NIST
Carbenium ion, dimethyl		3	7		NIST
Carbenium ion, dimethyl hydroxy		1			NIST
Carbenium ion, dimethyl phenyl					NIST
Carbenium ion, diphenyl			1		NIST
Carbenium ion, ethoxy hydroxy methyl		1			NIST
Carbenium ion, hydroxy methyl		1			NIST
Carbenium ion, methyl	[CH₃CH₂]⁺	3	10		NIST
Carbenium ion, methyl alkyl (generic)		1	4
Carbenium ion, phenyl			4		NIST
Carbenium ion, phenyl (generic)
Carbenium ion, propargyl	[HC≡C–CH₂]⁺		1		NIST
Carbenium ion, propargylic (generic)			1
Carbenium ion, propenyl			2		NIST
Carbenium ion, propyl			3		NIST
Carbenium ion, trialkyl (generic)	[R₃C]⁺		3
Carbenium ion, trimethyl		2	10		NIST
Carbenium ion, triphenylmethyl			2		NIST
Carbenium ion/tetrachloro aluminate complex (generic)	R⁺ [AlCl₄]^–	2
Carbide ion	^–C≡C^–		10		NIST
Carbimide ion	[N=C=N]^–			Wikipedia	NIST
Carbocation (AS/A2 generic)		1		Wikipedia
Carbocation (generic)	R⁺	2	32	Wikipedia
Carbodiimide	HN=C=NH	2	3	Wikipedia	NIST
Carbodithioic acid (generic)
Carbohydrate (generic)	(CH₂O)_n			Wikipedia
Carbohydrazonic acid (generic)
Carbohydroxamic acid (generic)
Carboiimide (generic)	R–N=C=N–R
Carbolic acid		8	10	Wikipedia	NIST
Carbolic oil	Tar Acid	1			NIST
Carbomethene	H₂C=C=O	4	4	Wikipedia	NIST
Carbon	C	8	55	Wikipedia	NIST
Carbon 12	¹²C	1	6	Wikipedia	NIST
Carbon dioxide	CO₂	104	35	Wikipedia	NIST
Carbon dioxide, aqueous	CO₂(aq)	1		Wikipedia	NIST
Carbon disulfide	CS₂	2	5	Wikipedia	NIST
Carbon fiber	Carbon Fiber	1		Wikipedia	NIST
Carbon monoxide	CO	63	59	Wikipedia	NIST
Carbon oxysulfide	O=C=S	1		Wikipedia	NIST
Carbon suboxide	O=C=C=C=O	1	2	Wikipedia	NIST
Carbon tetrachloride	CCl₄	11	5	Wikipedia	NIST
Carbon tetrafluoride	CF₄	4	1	Wikipedia	NIST
Carbon, diamond	C ^Diamond			Wikipedia	NIST
Carbon, graphite	C ^graphite		3	Wikipedia
Carbonate (hydrogen) ion	[HCO₃]^–	4	5		NIST
Carbonate diester (generic)			1
Carbonate diester, protonated (generic)		1
Carbonate ion	[CO₃]^2–	1	25	Wikipedia	NIST
Carbonate or urea (generic)
Carbonic acid	H₂CO₃	1		Wikipedia	NIST
Carbonimid	HNCO	1			NIST
Carbonium ion	[CH₅]⁺	2		Wikipedia	NIST
Carbonyl chloride		2	6	Wikipedia	NIST
Carbonyl function (AS/A2 generic)
Carbonyl function (generic)	X=O:			Wikipedia
Carbonyl sulfide	O=C=S	1		Wikipedia	NIST
Carbonyl, alkylated (generic)	[X=O–R]⁺
Carbothioic O-acid (generic)
Carbothioic S-acid (generic)		1
Carboximidic acid (generic)
3-Carboxy-2-oxo-pentanedioic acid		1	1	Wikipedia	NIST
Carboxylate dianion (generic)			1
Carboxylate ion (AS/A2 generic)		5		Wikipedia
Carboxylate ion (generic)	RCOO^–	9	11	Wikipedia
Carboxylic acid (AS/A2 generic)		7	3	Wikipedia
Carboxylic acid (generic)	RCOOH	15	14
Carboxylic acid anion (AS/A2 generic)		5		Wikipedia
Carboxylic acid, protonated (generic)		1
Carnallite	KMgCl₃.6H₂O		1	Wikipedia
Carnotite	K₂(UO₂)₂(VO₄)₂ .3H₂O		1	Wikipedia
Caro's acid		2	2	Wikipedia	NIST
CaS	CaS	4		Wikipedia	NIST
CaSe	CaSe	2			NIST
CaSiO3	CaSiO₃	4		Wikipedia	NIST
CaSO4	CaSO₄	9	4	Wikipedia	NIST
CaSO4.1/2H2O	CaSO₄ .½H₂O	1	1	Wikipedia	NIST
CaSO4.2H2O	CaSO₄ .2H₂O	2	1	Wikipedia	NIST
Cassiterite	SnO₂			Wikipedia
Cast iron, gray	Cast Iron			Wikipedia	NIST
Catalyst (AS/A2 generic)				Wikipedia
Catalytic converter	Catalytic Converter Pt \| Rh \| Pd \| Ir		1	Wikipedia	NIST
CaTe	CaTe	2			NIST
Caustic potash	KOH	12	18	Wikipedia	NIST
Caustic soda	NaOH	17	61	Wikipedia	NIST
CaWO4	CaWO₄	1		Wikipedia	NIST
CCl2	CCl₂	2		Wikipedia	NIST
CCl2=CCl2	Cl₂C=CCl₂	4		Wikipedia	NIST
CCl3CH2OH	CCl₃CH₂OH	1		Wikipedia	NIST
CCl3CHO	CCl₃CHO		2	Wikipedia	NIST
[CCl3COO]-	[CCl₃COO]^–		1		NIST
CCl3F	CCl₃F	3	1	Wikipedia	NIST
CCl3NO2	CCl₃NO₂				NIST
CCl4	CCl₄	11	5	Wikipedia	NIST
Cd	Cd	1		Wikipedia	NIST
Cd2+	Cd²⁺		3		NIST
CdBr2	CdBr₂	1		Wikipedia	NIST
CdCl2	CdCl₂			Wikipedia	NIST
CdF2	CdF₂			Wikipedia	NIST
CdI2	CdI₂			Wikipedia	NIST
CdO	CdO			Wikipedia	NIST
CdS	CdS	1		Wikipedia	NIST
CDT		1			NIST
Ce	Ce	1		Wikipedia	NIST
Ce2O3	Ce₂O₃	1			NIST
Ce3+	Ce³⁺	1	2		NIST
Ce4+	Ce⁴⁺		2		NIST
CeBr3	CeBr₃.H₂O				NIST
CeCl3	CeCl₃			Wikipedia	NIST
CeF3	CeF₃				NIST
CeF4	CeF₄.H₂O				NIST
CeI3	CeI₃.9H₂O				NIST
Celestine	SrSO₄			Wikipedia
Celite	Kieselguhr		1	Wikipedia
Cellobiose	Cellobiose			Wikipedia	NIST
Cellosolve		1		Wikipedia	NIST
Cellosolve®		1		Wikipedia	NIST
Cellulose	Cellulose		2	Wikipedia
Cellulose nitrate	Nitrocellulose	1	1	Wikipedia	NIST
CeO2	CeO₂	1		Wikipedia	NIST
Ceramic fiber	Ceramic Fiber
Ceramic wool	Ceramic Fiber
Cerargyrite	AgCl			Wikipedia
Cerebrose		1		Wikipedia	NIST
Ceria	CeO₂	1		Wikipedia	NIST
Cerium	Ce	1		Wikipedia	NIST
Cerium(III) bromide	CeBr₃.H₂O				NIST
Cerium(III) chloride	CeCl₃			Wikipedia	NIST
Cerium(III) fluoride	CeF₃				NIST
Cerium(III) iodide	CeI₃.9H₂O				NIST
Cerium(III) ion	Ce³⁺	1	2		NIST
Cerium(III) oxide	Ce₂O₃	1			NIST
Cerium(IV) fluoride	CeF₄.H₂O				NIST
Cerium(IV) ion	Ce⁴⁺		2		NIST
Cerium(IV) oxide	CeO₂	1		Wikipedia	NIST
Cerussite	PbCO₃			Wikipedia
Cesium	Cs	1	20	Wikipedia	NIST
Cesium amide	CsNH₂	2			NIST
Cesium antimonide	Cs₃Sb	2	1		NIST
Cesium arsenide	Cs₃As	2	1		NIST
Cesium bromide	CsBr	2		Wikipedia	NIST
Cesium carbide	CsCâ‰¡CCs	2			NIST
Cesium carbonate	Cs₂CO₃	1		Wikipedia	NIST
Cesium cation	Cs⁺	7	21		NIST
Cesium chloride	CsCl	2		Wikipedia	NIST
Cesium fluoride	CsF	2	3	Wikipedia	NIST
Cesium graphite	C₈Cs	1		Wikipedia	NIST
Cesium hydride	CsH	2	1		NIST
Cesium hydrogen sulfide	CsSH	3			NIST
Cesium hydroxide	CsOH	7	2	Wikipedia	NIST
Cesium iodide	CsI	2		Wikipedia	NIST
Cesium oxide	Cs₂O	2	1		NIST
Cesium peroxide	Cs₂O₂	2			NIST
Cesium phosphide	Cs₃P	2			NIST
Cesium selenide	Cs₂Se	2			NIST
Cesium stibnide	Cs₃Sb	2	1		NIST
Cesium sulfide	Cs₂S	2	1		NIST
Cesium superoxide	CsO₂	2			NIST
Cesium telluride	Cs₂Te	2			NIST
Cf	Cf			Wikipedia	NIST
CF2=CF2	F₂C=CF₂	1	1	Wikipedia	NIST
(CF2CF2)n		1		Wikipedia	NIST
CF2Cl2	CCl₂F₂	4	1	Wikipedia	NIST
CF3COOH	CF₃COOH	1		Wikipedia	NIST
[CF3COO]-	[CF₃COO]^–		1		NIST
CF3SO3H	CF₃SO₃H	1		Wikipedia	NIST
[CF3SO3]-	[CF₃SO₃]^–		1	Wikipedia	NIST
CF4	CF₄	4	1	Wikipedia	NIST
cGMP	cGTP			Wikipedia	NIST
CH radical		1	2		NIST
CH2	CH₂	3	10	Wikipedia	NIST
(CH2)4		2	1	Wikipedia	NIST
CH2=CCl2	H₂C=CCl₂	1	1	Wikipedia	NIST
CH2=CHBr		1		Wikipedia	NIST
CH2=CHCH2CH3		1	5	Wikipedia	NIST
CH2=CHCH=CH2		8	12	Wikipedia	NIST
CH2=CHCHO		3	4	Wikipedia	NIST
CH2=CHCl	H₂C=CHCl	3	4	Wikipedia	NIST
CH2=CHCN		6	10	Wikipedia	NIST
CH2=CHF		2	1	Wikipedia	NIST
CH2CH2	H₂C=CH₂	21	39	Wikipedia	NIST
(CH2CH2)n	–[CH₂CH₂]_n–	2	1		NIST
CH2Cl2	CH₂Cl₂	6	3	Wikipedia	NIST
CH2ClCH2Cl	CH₂ClCH₂Cl	3	10		NIST
CH2I2	CH₂I₂		2		NIST
CH2N2	CH₂N₂	1	4	Wikipedia	NIST
(CH2O)3		1			NIST
(CH2O)n	(CH₂O)_n	1	1	Wikipedia	NIST
(CH2O)n	(CH₂O)_n			Wikipedia
CH₃•	CH₃•	8	8		NIST
CH3 Group (generic)	R–CH₃	8
CH3(CH2)10COOH	CH₃(CH₂)₁₀COOH	1		Wikipedia	NIST
CH3(CH2)12COOH	CH₃(CH₂)₁₂COOH	2		Wikipedia	NIST
CH3(CH2)14COOH	CH₃(CH₂)₁₄COOH	6		Wikipedia	NIST
CH3(CH2)16COOH	CH₃(CH₂)₁₆COOH	1			NIST
CH3(CH2)16COOLi	CH₃(CH₂)₁₆COOLi			Wikipedia	NIST
CH3(CH2)18COOH	CH₃(CH₂)₁₈COOH			Wikipedia	NIST
((CH3)2CH)2NH		2		Wikipedia	NIST
[((CH3)2CH)2N]-			2		NIST
(CH3)2CHOH		9	8	Wikipedia	NIST
[(CH3)2CHO]-	[(CH₃)₂CH–O]^–	2	1		NIST
(CH3)2CO		15	19	Wikipedia	NIST
(CH3)2NCHO		2	2	Wikipedia	NIST
(CH3)2NH	(CH₃)₂NH	4	3	Wikipedia	NIST
[(CH3)2N]-	[(CH₃)₂N]^–		1		NIST
(CH3)2O			3	Wikipedia	NIST
(CH3)2S	(CH₃)₂S	1	2		NIST
(CH3)2SiCl2	(CH₃)₂SiCl₂	1	1	Wikipedia	NIST
(CH3)2SO		3	5	Wikipedia	NIST
(CH3)3B	(CH₃)₃B	1			NIST
(CH3)3CBr	(CH₃)₃CBr	4	2		NIST
(CH₃)₃CCl		5	1		NIST
(CH3)3CCOOH	(CH₃)₃C–COOH	1			NIST
(CH3)3CF		2			NIST
(CH3)3CH		3	4	Wikipedia	NIST
(CH3)3CI	(CH₃)₃CI	4			NIST
(CH3)3CNC		1		Wikipedia	NIST
(CH3)3CNH2	(CH₃)₃C–NH₂		1		NIST
(CH3)3COH	(CH₃)₃COH	7	11	Wikipedia	NIST
(CH3)3COK		2	2		NIST
[(CH3)3CO]-	[(CH₃)₃C–O]^–	1	2		NIST
[(CH3)3C]-	[(CH₃)₃C]^–		6	Wikipedia	NIST
(CH3)3N	(CH₃)₃N	7	3	Wikipedia	NIST
(CH3)3N	(CH₃CH₂)₃N		1	Wikipedia	NIST
[(CH3)3NH]+	[(CH₃)₃NH]⁺	2			NIST
[(CH3)3O]+	[(CH₃)₃O]⁺				NIST
(CH3)3P	(CH₃)₃P	1	1	Wikipedia	NIST
[(CH3)3Si]+	[(CH₃)₃Si]⁺				NIST
[(CH3)3S]+	[(CH₃)₃S]⁺				NIST
(CH3)4C			1	Wikipedia	NIST
[(CH3)4N]+	[(CH₃)₄N]⁺	2	3		NIST
CH3Br	CH₃Br	3	3	Wikipedia	NIST
[CH3C6H5SO3]-			1		NIST
CH3CCl3	CH₃CCl₃	1		Wikipedia	NIST
(CH3CH2)2O		3	17	Wikipedia	NIST
(CH3CH2)2S	(CH₃CH₂)₂S		1		NIST
(CH3CH2)3B	(CH₃CH₂)₃B	1		Wikipedia	NIST
[(CH3CH2)3O]+	[(CH₃CH₂)₃O]⁺				NIST
(CH3CH2)3P	(CH₃CH₂)₃P	1	2		NIST
CH3CH2â€¢	CH₃CH₂•	1	1		NIST
CH3CH2Br	CH₃CH₂Br	9	2	Wikipedia	NIST
CH3CH2CH2Br		3		Wikipedia	NIST
CH3CH2CH2CH2Br			3	Wikipedia	NIST
CH3CH2CH2CH2CH2CH2CH2CH3		1	3	Wikipedia	NIST
CH3CH2CH2CH2CH2CH2CH3			1		NIST
CH3CH2CH2CH2CH2CH3		1	5	Wikipedia	NIST
CH3CH2CH2CH2CH2OH			2	Wikipedia	NIST
CH3CH2CH2CH2CH3		3		Wikipedia	NIST
CH3CH2CH2CH2CHO		1	3	Wikipedia	NIST
CH3CH2CH2CH2CN		1			NIST
CH3CH2CH2CH2COOH		3		Wikipedia	NIST
CH3CH2CH2CH2Li		2		Wikipedia	NIST
CH3CH2CH2CH2NC		1		Wikipedia	NIST
CH3CH2CH2CH2NH2		1	1	Wikipedia	NIST
CH3CH2CH2CH2OH		4	2	Wikipedia	NIST
C[H3CH2CH2CH2S]-					NIST
[CH3CH2CH2CH2]-			3	Wikipedia	NIST
CH3CH2CH2CH3		4	8	Wikipedia	NIST
CH3CH2CH2CHO		5	6	Wikipedia	NIST
CH3CH2CH2COOH		6		Wikipedia	NIST
[CH3CH2CH2COO]-			1		NIST
CH3CH2CH2NH2			1	Wikipedia	NIST
CH3CH2CH2OH		4	2	Wikipedia	NIST
[CH3CH2CH2]-			2		NIST
CH3CH2CH3		2	2	Wikipedia	NIST
CH3CH2CHO		3	3	Wikipedia	NIST
CH3CH2Cl	CH₃CH₂Cl	8	3	Wikipedia	NIST
CH3CH2CN	CH₃CH₂CN		1	Wikipedia	NIST
CH3CH2COCl			1		NIST
CH3CH2COOCH2CH2CH3		1			NIST
CH3CH2COOCH2CH3		1			NIST
CH3CH2COOH	CH₃CH₂COOH	5	1	Wikipedia	NIST
[CH3CH2COO]-			1		NIST
CH3CH2F		2	1		NIST
CH3CH2NH2	CH₃CH₂NH₂	5	7	Wikipedia	NIST
[CH3CH2NH3]+	[CH₃CH₂NH₃]⁺	2			NIST
[CH3CH2NH]-		2	1	Wikipedia	NIST
(CH3CH2O)3P	(CH₃CH₂O)₃P		4	Wikipedia	NIST
CH3CH2OCH2CH3		3	17	Wikipedia	NIST
CH3CH2OH	CH₃CH₂OH	15	34	Wikipedia	NIST
[CH3CH2O]-	CH₃CH₂O^–	6	5		NIST
CH3CH2SCH2CH3	(CH₃CH₂)₂S		1		NIST
CH3CH2SH	CH₃CH₂SH	1	1	Wikipedia	NIST
[CH3CH2S]-	[CH₃CH₂S]^–		1		NIST
[CH3CH2]+	[CH₃CH₂]⁺	3	10		NIST
[CH3CH2]-	[CH₃CH₂]^–		7	Wikipedia	NIST
(CH3CH3)3OBF4	[Et₃O]⁺[BF₄]^–		1	Wikipedia	NIST
CH3CH3I	CH₃CH₂I	3	1	Wikipedia	NIST
CH3CH=CHCH3		3	3	Wikipedia	NIST
CH3CH=CHCH3		3	3	Wikipedia	NIST
CH3CHBrCH3	(CH₃)₂CHBr	4	8		NIST
CH3CHCl2	CH₃CHCl₂	1	1	Wikipedia	NIST
CH3CHClCH3		4	2		NIST
CH3CHFCH3		2			NIST
CH3CHICH3	(CH₃)₂CHI	3			NIST
CH3CHO	CH₃CHO	13	20	Wikipedia	NIST
CH3Cl	CH₃Cl	8	4	Wikipedia	NIST
CH3CN	CH₃CN	6	5	Wikipedia	NIST
CH3COCH2CH2CH3		1	5	Wikipedia	NIST
CH3COCH2CH3		4	2	Wikipedia	NIST
CH3COCH3		15	19	Wikipedia	NIST
CH3COCl	CH₃COCl		11	Wikipedia	NIST
CH3CONH2	CH₃CONH₂	4	1	Wikipedia	NIST
CH3COOCH2CH3		5	4	Wikipedia	NIST
CH3COOCH3			2	Wikipedia	NIST
CH3COOH	CH₃COOH	32	27	Wikipedia	NIST
CH3COOH(aq)	CH₃COOH(aq)	3		Wikipedia	NIST
CH3COONa	CH₃COONa	4	2	Wikipedia	NIST
CH3COOOH	CH₃COOOH	3	4	Wikipedia	NIST
[CH3COO]-	[CH₃COO]^–	6	10	Wikipedia	NIST
CH3F	CH₃F	1		Wikipedia	NIST
CH3I	CH₃I	4	12	Wikipedia	NIST
CH3IF2	CH₃IF	1			NIST
CH3Li	LiCH₃	2	2	Wikipedia	NIST
CH3MgI	CH₃MgI	2	3	Wikipedia	NIST
CH3NCO	CH₃–N=C=O		1	Wikipedia	NIST
CH3NH2	CH₃NH₂	2	9	Wikipedia	NIST
[CH3NH3]+	[CH₃NH₃]⁺	4			NIST
[CH3NH]-	[CH₃–NH]^–		1		NIST
CH3NO2	CH₃–NO₂	1	2	Wikipedia	NIST
(CH3O)3P	(CH₃O)₃P			Wikipedia	NIST
CH3OCH2CH2OCH2CH2OCH3			2	Wikipedia	NIST
CH3OCH3			3	Wikipedia	NIST
CH3OH	CH₃OH	19	31	Wikipedia	NIST
[CH3O]-	[CH₃–O]^–	1	3	Wikipedia	NIST
CH3SCH3	(CH₃)₂S	1	2		NIST
CH3SCN	N≡C–S–CH₃	1			NIST
CH3SH	CH₃–SH	1	1		NIST
CH3SiCl3	CH₃SiCl₃		1	Wikipedia	NIST
CH3SOCH3		3	5	Wikipedia	NIST
[CH3SS]-	[CH₃–S]^–		1		NIST
[CH3]+	[CH₃]⁺	2	9		NIST
[CH3]-	[CH₃]^–		12	Wikipedia	NIST
CH4	CH₄	14	32	Wikipedia	NIST
[CH5]+	[CH₅]⁺	2		Wikipedia	NIST
Chabazite	(Ca,K₂,Na₂)₂ [Al₂Si₄O₁₂]₂ .12H₂O			Wikipedia
Chalcanthite	CuSO₄.5H₂O			Wikipedia
Chalcedony	SiO₂			Wikipedia
Chalcocite	Cu₂S			Wikipedia
Chalcogen (generic)	Group VIa/16 Chalcogens			Wikipedia
Chalcopyrite	CuFeS₄		2	Wikipedia
Chalcosine	Cu₂S			Wikipedia
Chalybite	FeCO₃			Wikipedia
Chamber crystals	NOHSO₄	2	3		NIST
Charm quark	c		1	Wikipedia
(CHCl2CH2)n		1		Wikipedia	NIST
CHCl2CH2Cl	CHCl₂CH₂Cl	2	1	Wikipedia	NIST
CHCl3	CHCl₃	6	7	Wikipedia	NIST
(CHCN2CH2)n		1	1	Wikipedia	NIST
Chelate (AS/A2 generic)				Wikipedia
Chemical warfare agent (generic)	CW Agent			Wikipedia
(CHFCH2)n		1		Wikipedia	NIST
Chile saltpetre	NaNO₃			Wikipedia
Chinese silver	Chinese Silver			Wikipedia	NIST
Chitin	Chitin			Wikipedia
Chloanthite	Ni₂As₃
Chloral	CCl₃CHO		2	Wikipedia	NIST
Chloral hydrate		1		Wikipedia	NIST
Chloramine	H₂NCl	1	3	Wikipedia	NIST
Chloramine T				Wikipedia	NIST
D(-) Chloramphemicol base		1	1	Wikipedia	NIST
Chloramphenicol base (racemic mixture)		1	1	Wikipedia	NIST
D(-) Chloramphenicol		1		Wikipedia	NIST
Chlorane	HCl	107	50	Wikipedia	NIST
Chlorargyrite	AgCl			Wikipedia
Chlorate ion	[ClO₃]^–	2	5	Wikipedia	NIST
Chlorate(I) ion	[ClO]^–	2	5	Wikipedia	NIST
Chlorate(III) ion	[ClO₂]^–		3	Wikipedia	NIST
Chlorate(V) ion	[ClO₃]^–	2	5	Wikipedia	NIST
Chlorate(VII) ion	[ClO₄]^–		5	Wikipedia	NIST
Chlordiazepoxide				Wikipedia	NIST
Chlorenium ion	Cl⁺		14		NIST
Chloric acid	HClO₃	2	1	Wikipedia	NIST
Chloride ion	Cl^–	65	75	Wikipedia	NIST
Chloride, 2° alkyl (generic)		2	1
Chloride, organic (generic)	RCl	4	7	Wikipedia
Chlorinated lime	Ca(OCl)₂ .2H₂O	1		Wikipedia	NIST
Chlorine	Cl₂	30	124	Wikipedia	NIST
Chlorine anion	Cl^–	65	75	Wikipedia	NIST
Chlorine cation	Cl⁺		14		NIST
Chlorine diiodide ion	[I₂Cl]^–	1			NIST
Chlorine dioxide	ClO₂	6	4	Wikipedia	NIST
Chlorine hydride	HCl	107	50	Wikipedia	NIST
Chlorine monofluoride	ClF	3	2	Wikipedia	NIST
Chlorine monoxide	Cl₂O	1	3	Wikipedia	NIST
Chlorine pentafluoride	ClF₅		1	Wikipedia	NIST
Chlorine perchlorate	Cl⁺ [ClO₄]^–	1			NIST
Chlorine peroxide	ClO₂	6	4	Wikipedia	NIST
Chlorine radical	Cl•	5	6		NIST
Chlorine tetrachloroaluminate	Cl⁺ / [AlCl₄]^–	1	1		NIST
Chlorine tetrafluoride ion	[ClF₄]^–				NIST
Chlorine trifluoride	ClF₃	2	7	Wikipedia	NIST
Chlorite group	(Mg,Fe)₃(Si,Al)₄ O₁₀(OH)₂. (Mg,Fe)₃(OH)₆			Wikipedia
Chlorite ion	[ClO₂]^–		3	Wikipedia	NIST
di-µ-Chlorobis(1,5-cyclooctadiene) -dirhodium(I)		1			NIST
2-Chloro-1,3-butadiene		2	1	Wikipedia	NIST
7-Chloro-1,3-dihydro-1-methyl-5-phenyl-2H-1,4-benzodiazepin-2-one					NIST
3-Chloro-1-propene		1	3	Wikipedia	NIST
2-Chloro-10-(3-dimethylaminopropyl)-phenothiazine hydrochloride				Wikipedia	NIST
1-Chloro-2,2-dimethylpropane		1	2		NIST
1-Chloro-2,3-epoxypropane		3	1	Wikipedia	NIST
1-Chloro-2-hydroxyethane		1	2	Wikipedia	NIST
7-Chloro-2-methylamino-5-phenyl-3H-1,4-benzodiazepin 4-oxide				Wikipedia	NIST
2-Chloro-2-methylpropane		5	1		NIST
5-Chloro-2-pentanone			1		NIST
1-Chloro-2-propanol		1	1		NIST
Chloroacetate ion	[ClCH₂COO]^–		1		NIST
Chloroacetic acid	CH₂ClCOOH	2		Wikipedia	NIST
Chloroalkene (generic)		2	2
Chlorobenzene		5	3	Wikipedia	NIST
meta Chlorobenzoic acid		2			NIST
Chlorocyclohexane		1			NIST
trans 2-chlorocyclohexanol			1		NIST
Chlorodifluoromethane	HCClF₂	1	1	Wikipedia	NIST
Chloroethane	CH₃CH₂Cl	8	3	Wikipedia	NIST
Chloroethanoate ion	[ClCH₂COO]^–		1		NIST
2-Chloroethanol		1	2	Wikipedia	NIST
Chloroethene	H₂C=CHCl	3	4	Wikipedia	NIST
beta-Chloroethyl amine (generic)	R₂N–CH₂CH₂Cl	1
beta-Chloroethyl ether (generic)	R–O–CH₂CH₂Cl	1
beta-Chloroethyl thioether (generic)	R–S–CH₂CH₂Cl	1
((1R)-1-Chloroethyl)benzene			2		NIST
Chloroform	CHCl₃	6	7	Wikipedia	NIST
Chloroformyl chloride		2	6	Wikipedia	NIST
Chlorohydrin (generic)		1	1
Chlorohydrin		1	2	Wikipedia	NIST
Chlorohydrobis(triethylphosphine) platinium(II)		1			NIST
Chloromethane	CH₃Cl	8	4	Wikipedia	NIST
Chloromethyl radical		1	3		NIST
(Chloromethyl)benzene		1		Wikipedia	NIST
1-Chloro-2-methylpropane		1			NIST
Chloromycetin		1		Wikipedia	NIST
Chloronium ion	[ClH₂]⁺	1			NIST
Chloronium ion, alkyl (generic)	[R–ClH]⁺	2
meta Chloroperoxybenzoic acid			3	Wikipedia	NIST
1,1-bis(p-Chlorophenyl)-2,2,2-trichloroethane	DDT	1		Wikipedia	NIST
Chloropictin	CCl₃NO₂				NIST
Chloroprene		2	1	Wikipedia	NIST
2-Chloropropane		4	2		NIST
2-Chloropropanoic acid			1		NIST
Chlorosulfonic acid	HSO₃Cl	1	2	Wikipedia	NIST
Chlorosulfuric acid	HSO₃Cl	1	2	Wikipedia	NIST
Chlorotriphenylmethane	(C₆H₅)₃CCl	2	1		NIST
Chlorous acid	HClO₂	2		Wikipedia	NIST
Chlorous(III) acid	HClO₂	2		Wikipedia	NIST
Chlorous(I) acid	HClO	6	4	Wikipedia	NIST
Chlorpromazine				Wikipedia	NIST
(CHPh2CH2)n		1		Wikipedia	NIST
Chromate ion, hydrogen	[HCrO₄]^–				NIST
Chromate(VI) ion	[CrO₄^]2–	3	6	Wikipedia	NIST
Chrome green	Cr₂O₃	3	2	Wikipedia	NIST
Chromic acid	H₂CrO₄	2		Wikipedia	NIST
Chromic anhydride	CrO₃	1	4	Wikipedia	NIST
Chromic oxide	Cr₂O₃	3	2	Wikipedia	NIST
Chromite	FeCr₂O₄		2	Wikipedia
Chromium	Cr	5	3	Wikipedia	NIST
Chromium carbonyl	Cr(CO)₆			Wikipedia	NIST
Chromium family (generic)	Group VIb/6 Chronium Family			Wikipedia
Chromium group metal (generic)	Group VIb/6 Chronium Family			Wikipedia
Chromium trioxide	CrO₃	1	4	Wikipedia	NIST
Chromium(II) bromide	CrBr₂				NIST
Chromium(II) chloride	CrCl₂	1		Wikipedia	NIST
Chromium(II) fluoride	CrF₂				NIST
Chromium(II) hexaammonia ion	[Cr(NH₃)₆]²⁺	2			NIST
Chromium(II) hexahydrated ion	[Cr(H₂O)₆]²⁺	3			NIST
Chromium(II) iodide	CrI₂				NIST
Chromium(II) ion	Cr²⁺	2	3		NIST
Chromium(II) oxide	CrO			Wikipedia	NIST
Chromium(III) bromide	CrBr₃				NIST
Chromium(III) chloride	CrCl₃	1	1	Wikipedia	NIST
Chromium(III) dichlorotetraaqua ion	[CrCl₂(H₂O)₄]⁺	1	1		NIST
Chromium(III) fluoride	CrF₃			Wikipedia	NIST
Chromium(III) hexahydrated ion	[Cr(H₂O)₆]²⁺	3	9		NIST
Chromium(III) hexahydroxy ion	[Cr(OH)₆]^3–	2	1		NIST
Chromium(III) hydroxide	Cr(OH)₃				NIST
Chromium(III) iodide	CrI₃				NIST
Chromium(III) ion	Cr³⁺	11	5		NIST
Chromium(III) oxide	Cr₂O₃	3	2	Wikipedia	NIST
Chromium(III) pentaaquahydroxy ion	Cr(H₂O)₅(OH)]²⁺	2			NIST
Chromium(III) triaquatrihydroxy complex	Cr(H₂O)₃(OH)₃ Cr(OH)₃	3	3		NIST
Chromium(IV) bromide	CrBr₄				NIST
Chromium(IV) chloride	CrCl₄			Wikipedia	NIST
Chromium(IV) fluoride	CrF₄				NIST
Chromium(IV) iodide	CrI₄				NIST
Chromium(IV) oxide	CrO₂			Wikipedia	NIST
Chromium(V) fluoride	CrF₅				NIST
Chromium(VI) fluoride	CrF₆				NIST
Chromium(VI) ion	Cr⁶⁺		1		NIST
Chromium(VI) oxide	CrO₃	1	4	Wikipedia	NIST
Chrysene				Wikipedia	NIST
Chrysoberyl	BeAl₂O₄		1	Wikipedia
Cinnabar	HgS			Wikipedia
Cinnamaldehyde			3	Wikipedia	NIST
cis Cinnamate ion			1		NIST
trans Cinnamate ion			1		NIST
cis Cinnamic acid		1			NIST
trans Cinnamic acid		1		Wikipedia	NIST
Cinnamyl alcohol		2		Wikipedia	NIST
cis-Diamminodichloroplatinum(II)	Pt(NH₃)₂Cl₂			Wikipedia	NIST
Cisplatin	Pt(NH₃)₂Cl₂			Wikipedia	NIST
Citrate (dihydrogen) ion		1	1		NIST
Citrate (hydrogen) ion		1	1		NIST
Citrate ion			1		NIST
Citrate synthase	Citrate Synthase		1	Wikipedia
Citric acid		2	1	Wikipedia	NIST
Cl•	Cl•	5	6		NIST
Cl(CH2)5Cl	Cl(CH₂)₅Cl		1		NIST
Cl(ClO4)	Cl⁺ [ClO₄]^–	1			NIST
Cl+	Cl⁺		14		NIST
Cl^-	Cl^–	65	75	Wikipedia	NIST
Cl2	Cl₂	30	124	Wikipedia	NIST
Cl2C=CCl2	Cl₂C=CCl₂	4		Wikipedia	NIST
Cl2O	Cl₂O	1	3	Wikipedia	NIST
Cl2O7	Cl₂O₇	1	1	Wikipedia	NIST
[Cl3]+	[Cl₃]⁺	1			NIST
Cl₂HC•	Cl₂HC•	1	1		NIST
Cl₃C•	Cl₃C•	1	2		NIST
ClCH2CH2CH2CH2CH2Cl	Cl(CH₂)₅Cl		1		NIST
ClCH2CH2OH		1	2	Wikipedia	NIST
ClCHO		1			NIST
ClCN	N≡C–Cl	1	4	Wikipedia	NIST
ClCOOCH3	ClCOOCH₃		1		NIST
ClF	ClF	3	2	Wikipedia	NIST
[ClF2]+	[ClF₂]⁺	2			NIST
ClF3	ClF₃	2	7	Wikipedia	NIST
[ClF4]-	[ClF₄]^–				NIST
ClF5	ClF₅		1	Wikipedia	NIST
ClI	I–Cl	2	4	Wikipedia	NIST
Clinozoisite	Ca₂Al₃Si₃ O₁₂(OH)			Wikipedia
ClO2	ClO₂	6	4	Wikipedia	NIST
[ClO2]-	[ClO₂]^–		3	Wikipedia	NIST
ClO3H	HClO₃	2	1	Wikipedia	NIST
[ClO3]-	[ClO₃]^–	2	5	Wikipedia	NIST
[ClO4]-	[ClO₄]^–		5	Wikipedia	NIST
[ClO]-	[ClO]^–	2	5	Wikipedia	NIST
ClSSCl	Cl–S–S–Cl	2	5	Wikipedia	NIST
Cluster compound (generic)				Wikipedia
Cm	Cm			Wikipedia	NIST
Cn	Cn			Wikipedia	NIST
[CN]-	[CN]^–	5	27	Wikipedia	NIST
CO	CO	63	59	Wikipedia	NIST
Co	Co	4	2	Wikipedia	NIST
[Co(C2O4)3]4-	[Co(C₂O₄)₃]^4–	1			NIST
[Co(EDTA)]2-	[Co(EDTA)]^3–	2			NIST
[Co(en)3]2+	[Co(en)₃]²⁺	2			NIST
Co(H2O)4(OH)2	Co(H₂O)₄(OH)₂ Co(OH)₂	3	1		NIST
[Co(H2O)6]2+	[Co(H₂O)₆]²⁺	4	10		NIST
[Co(NH3)6]2+	[Co(NH₃)₆]²⁺	1	3		NIST
[Co(NH3)6]3+	[Co(NH₃)₆]³⁺	2			NIST
Co(OH)2	Co(OH)₂	1			NIST
Co(OH)3	Co(OH)₃	1			NIST
CO2	CO₂	104	35	Wikipedia	NIST
CO2(aq)	CO₂(aq)	1		Wikipedia	NIST
Co2(CO)8	Co₂(CO)₈			Wikipedia	NIST
Co2(CO)8	Co₂(CO)₈	1	1		NIST
Co2+	Co²⁺	2	10		NIST
Co2O3	Co₂O₃			Wikipedia	NIST
Co2O3	Co₂O₃			Wikipedia	NIST
Co3+	Co³⁺		2		NIST
Co3O4	Co₃O₄				NIST
[CO3]2-	[CO₃]^2–	1	25	Wikipedia	NIST
Coal	Coal		4	Wikipedia
Coal gas	CO + H₂	1		Wikipedia	NIST
Coal tar	Coal Tar	1	7	Wikipedia	NIST
Cobalt	Co	4	2	Wikipedia	NIST
Cobalt black	Co₂O₃			Wikipedia	NIST
Cobalt bloom	Co₃(AsO₄)₂ .8H₂O		1	Wikipedia
Cobalt family (generic)	Group VIIIb/9 Cobalt Family			Wikipedia
Cobalt group metal (generic)	Group VIIIb/9 Cobalt Family			Wikipedia
Cobalt tetracarbonyl	Co₂(CO)₈	1	1		NIST
Cobalt(III) oxide	Co₂O₃			Wikipedia	NIST
Cobalt(I) pentahydro ion	[CoH₅]^4–		1		NIST
Cobalt(II) bromide	CoBr₂				NIST
Cobalt(II) carbonate	CoCO₃	1		Wikipedia	NIST
Cobalt(II) chloride	CoCl₂		1	Wikipedia	NIST
Cobalt(II) chloride hexahydrate	CoCl₂.6H₂O	1		Wikipedia	NIST
Cobalt(II) EDTA complex ion	[Co(EDTA)]^3–	2			NIST
Cobalt(II) fluoride	CoF₂	1		Wikipedia	NIST
Cobalt(II) hexaammino complex ion	[Co(NH₃)₆]²⁺	1	3		NIST
Cobalt(II) hexahydrated ion	[Co(H₂O)₆]²⁺	4	10		NIST
Cobalt(II) hydroxide	Co(OH)₂	1			NIST
Cobalt(II) iodide	CoI₂				NIST
Cobalt(II) ion	Co²⁺	2	10		NIST
Cobalt(II) oxide	CoO			Wikipedia	NIST
Cobalt(II) sulfate	CoSO₄	1			NIST
Cobalt(II) sulfide	CoS	1			NIST
Cobalt(II) tetraaquadihydroxy complex	Co(H₂O)₄(OH)₂ Co(OH)₂	3	1		NIST
Cobalt(II) tetrachloro ion	[CoCl₄]^2–	3	2		NIST
Cobalt(II) tris(ethanedioate) complex ion	[Co(C₂O₄)₃]^4–	1			NIST
Cobalt(II) tris(ethylenediamine) ion	[Co(en)₃]²⁺	2			NIST
Cobalt(II,III) oxide	Co₃O₄				NIST
Cobalt(III) chloride	CoCl₃				NIST
Cobalt(III) dichloro bis(ethylenediamine) complex ion	[CoCl₂(en)₂]⁺				NIST
Cobalt(III) fluoride	CoF₃		1	Wikipedia	NIST
Cobalt(III) hexaammino complex ion	[Co(NH₃)₆]³⁺	2			NIST
Cobalt(III) hydroxide	Co(OH)₃	1			NIST
Cobalt(III) ion	Co³⁺		2		NIST
Cobalt(III) oxide	Co₂O₃			Wikipedia	NIST
Cobalt(IV) oxide	CoO₂				NIST
Cobaltic fluoride	CoF₃		1	Wikipedia	NIST
Cobaltic oxide	Co₂O₃			Wikipedia	NIST
Cobaltic oxide	Co₂O₃			Wikipedia	NIST
Cobaltite	CoAsS		1	Wikipedia
Cobaltous fluoride	CoF₂	1		Wikipedia	NIST
CoBr2	CoBr₂				NIST
Cocaine				Wikipedia	NIST
(COCl)2				Wikipedia	NIST
COCl2		2	6	Wikipedia	NIST
CoCl2	CoCl₂		1	Wikipedia	NIST
[CoCl2(en)2]+	[CoCl₂(en)₂]⁺				NIST
CoCl2.6H2O	CoCl₂.6H₂O	1		Wikipedia	NIST
CoCl3	CoCl₃				NIST
[CoCl4]2-	[CoCl₄]^2–	3	2		NIST
CoCO3	CoCO₃	1		Wikipedia	NIST
Coconut oil	Coconut Oil		2	Wikipedia
Codeine				Wikipedia	NIST
Coenzyme A	CoA–SH	2	1	Wikipedia	NIST
CoF2	CoF₂	1		Wikipedia	NIST
CoF3	CoF₃		1	Wikipedia	NIST
[CoH5]4-	[CoH₅]^4–		1		NIST
CoI2	CoI₂				NIST
Coinage gold	Coinage Gold				NIST
Coinage metals (generic)	Group Ib/11 Copper Group			Wikipedia
Coinage nickel	Nickel Coinage				NIST
Coinage silver	Silver US Coinage				NIST
Coke	Coke	1	1	Wikipedia	NIST
Colemanite	Ca₂B₆O₁₁ .5H₂O			Wikipedia
2,4,6-Collidine			1		NIST
Colloid (generic)	Colloid			Wikipedia
Columbite	(Fe,Mn)Nb₂O₆			Wikipedia
Columbium	Nb			Wikipedia	NIST
Commercial bronze	Commercial Bronze			Wikipedia	NIST
Complex (AS/A2 generic)		5	2	Wikipedia
Complex anion Lewis base (generic)			6	Wikipedia
Complex ion (generic)	Complex Ion			Wikipedia
Complex salt (generic)	Molecular or Complex Salt
Composite material (generic)	Composite Material			Wikipedia
Condensed aromatic (generic)		1	1	Wikipedia
Condensing enzyme	Citrate Synthase		1	Wikipedia
Congeneric planar, anionic Lobe-HOMO Lewis base (generic)					NIST
CoO	CoO			Wikipedia	NIST
CoO2	CoO₂				NIST
(COOH)2		5	2	Wikipedia	NIST
Cooper's gold	Cooper's Gold				NIST
Copernicium	Cn			Wikipedia	NIST
Copper	Cu	11	10	Wikipedia	NIST
Copper carbonate hydroxide	CuCO₃. Cu(OH)₂			Wikipedia	NIST
Copper family (generic)	Group Ib/11 Copper Group			Wikipedia
Copper glance	Cu₂S			Wikipedia
Copper group metal (generic)	Group Ib/11 Copper Group			Wikipedia
Copper pyrites	CuFeS₄		2	Wikipedia
Copper, native	Cu _native			Wikipedia
Copper(I) bromide	CuBr	1	2	Wikipedia	NIST
Copper(I) chloride	CuCl	4	6	Wikipedia	NIST
Copper(I) cyanide	CuCN	2	1	Wikipedia	NIST
Copper(I) fluoride	CuF			Wikipedia	NIST
Copper(I) iodide	CuI	2		Wikipedia	NIST
Copper(I) ion	Cu⁺	5	10		NIST
Copper(I) oxide	Cu₂O	4	1	Wikipedia	NIST
Copper(I) sulfide	Cu₂S	1		Wikipedia	NIST
Copper(I) thiocyanate	CuSCN	1			NIST
Copper(II) bromide	CuBr₂			Wikipedia	NIST
Copper(II) carbonate	CuCO₃ ^(unknown)	2	1	Wikipedia	NIST
Copper(II) carbonate, basic	2CuCO₃. Cu(OH)₂			Wikipedia	NIST
Copper(II) chloride	CuCl₂	1	7	Wikipedia	NIST
Copper(II) EDTA complex ion	[Cu(EDTA)]^2–	2			NIST
Copper(II) fluoride	CuF₂			Wikipedia	NIST
Copper(II) hexahydrated ion	[Cu(H₂O)₆]²⁺	3	8		NIST
Copper(II) hydroxide	Cu(OH)₂	2	1	Wikipedia	NIST
Copper(II) ion	Cu²⁺	3	18		NIST
Copper(II) nitrate	Cu(NO₃)₂	4	1	Wikipedia	NIST
Copper(II) oxide	CuO	4	4	Wikipedia	NIST
Copper(II) sulfate.5H2O	CuSO₄.5H₂O	1	2	Wikipedia	NIST
Copper(II) sulfate	CuSO₄	2	4	Wikipedia	NIST
Copper(II) sulfide		1	1	Wikipedia	NIST
Copper(II) tetraaquadihydroxy complex	Cu(H₂O)₄(OH)₂ Cu(OH)₂	3	1		NIST
Copper(II) tetrachloro ion	[CuCl₄]^2–	4	1		NIST
Copper(II) tetrafluoroborate	Cu(BF₄)₂	1			NIST
Cordierite	(Mg,Fe)₂Al₄Si₅O₁₈			Wikipedia
Cordite	GELATINE DYNAMITE	1		Wikipedia
Corn oil	Corn Oil		1	Wikipedia
Corrosive sublimate	HgCl₂	2	1	Wikipedia	NIST
Corundum	Al₂O₃ ^Corundum			Wikipedia
Corundum	Al₂O₃			Wikipedia
CoS	CoS	1			NIST
COS	O=C=S	1		Wikipedia	NIST
CoSO4	CoSO₄	1			NIST
Cotunnite	PbCl₂	1		Wikipedia	NIST
Coumarin				Wikipedia	NIST
Coumaron				Wikipedia	NIST
Covelline	CuS			Wikipedia
Covellite	CuS			Wikipedia
Cp			6	Wikipedia	NIST
Cr	Cr	5	3	Wikipedia	NIST
CR		1		Wikipedia	NIST
Cr(CO)6	Cr(CO)₆			Wikipedia	NIST
Cr(H2O)3(OH)3	Cr(H₂O)₃(OH)₃ Cr(OH)₃	3	3		NIST
[Cr(H2O)5(OH)]2+	Cr(H₂O)₅(OH)]²⁺	2			NIST
[Cr(H2O)6]2+	[Cr(H₂O)₆]²⁺	3			NIST
[Cr(H2O)6]3+	[Cr(H₂O)₆]²⁺	3	9		NIST
[Cr(NH3)6]3+	[Cr(NH₃)₆]²⁺	2			NIST
Cr(OH)3	Cr(OH)₃				NIST
[Cr(OH)6]3-	[Cr(OH)₆]^3–	2	1		NIST
Cr2+	Cr²⁺	2	3		NIST
Cr2O3	Cr₂O₃	3	2	Wikipedia	NIST
[Cr2O7]2-	[Cr₂O₇]^2–	1	13	Wikipedia	NIST
Cr3+	Cr³⁺	11	5		NIST
Cr6+	Cr⁶⁺		1		NIST
Crack cocaine				Wikipedia	NIST
Crack gas	CO + 3H₂ ^{Crack Gas}	1		Wikipedia	NIST
CrBr2	CrBr₂				NIST
CrBr3	CrBr₃				NIST
CrBr4	CrBr₄				NIST
CrCl2	CrCl₂	1		Wikipedia	NIST
[CrCl2(H2O)4]+	[CrCl₂(H₂O)₄]⁺	1	1		NIST
CrCl3	CrCl₃	1	1	Wikipedia	NIST
CrCl4	CrCl₄			Wikipedia	NIST
Creosote	Absorbing Oil	1			NIST
CrF2	CrF₂				NIST
CrF3	CrF₃			Wikipedia	NIST
CrF4	CrF₄				NIST
CrF5	CrF₅				NIST
CrF6	CrF₆				NIST
CrI2	CrI₂				NIST
CrI3	CrI₃				NIST
CrI4	CrI₄				NIST
CrO	CrO			Wikipedia	NIST
CrO2	CrO₂			Wikipedia	NIST
CrO3	CrO₃	1	4	Wikipedia	NIST
[CrO4]-	[CrO₄^]2–	3	6	Wikipedia	NIST
Crocoite	PbCrO₄			Wikipedia
Cross-linked grafted polyethylene		1			NIST
Crotonaldehyde		1	3	Wikipedia	NIST
Crotonic acid		1		Wikipedia	NIST
18-Crown-6			4	Wikipedia	NIST
Crude oil	Crude Oil		13	Wikipedia
Cryolite	Na₃AlF₆	3	2	Wikipedia	NIST
Cryolite	Na₃AlF₄			Wikipedia
Cs	Cs	1	20	Wikipedia	NIST
Cs+	Cs⁺	7	21		NIST
CS2	CS₂	2	5	Wikipedia	NIST
Cs2C2	CsCâ‰¡CCs	2			NIST
Cs2CO3	Cs₂CO₃	1		Wikipedia	NIST
Cs2O	Cs₂O	2	1		NIST
Cs2O2	Cs₂O₂	2			NIST
Cs2S	Cs₂S	2	1		NIST
Cs2Se	Cs₂Se	2			NIST
Cs2Te	Cs₂Te	2			NIST
Cs3As	Cs₃As	2	1		NIST
Cs3P	Cs₃P	2			NIST
Cs3Sb	Cs₃Sb	2	1		NIST
CsBr	CsBr	2		Wikipedia	NIST
CsCl	CsCl	2		Wikipedia	NIST
CsF	CsF	2	3	Wikipedia	NIST
CsH	CsH	2	1		NIST
CsI	CsI	2		Wikipedia	NIST
CsNH2	CsNH₂	2			NIST
CsO2	CsO₂	2			NIST
CsOH	CsOH	7	2	Wikipedia	NIST
CsSH	CsSH	3			NIST
CsSO3	CaSO₃.x(H₂O)	2		Wikipedia	NIST
Cu	Cu	11	10	Wikipedia	NIST
Cu(BF4)2	Cu(BF₄)₂	1			NIST
[Cu(EDTA)]2-	[Cu(EDTA)]^2–	2			NIST
[Cu(H2O)4(OH)2]	Cu(H₂O)₄(OH)₂ Cu(OH)₂	3	1		NIST
[Cu(H2O)6]2+	[Cu(H₂O)₆]²⁺	3	8		NIST
[Cu(NH3)4(H2O)2]2+	[Cu(NH₃)₄(H₂O)₂]²⁺	2			NIST
Cu(NO3)2	Cu(NO₃)₂	4	1	Wikipedia	NIST
Cu(OH)2	Cu(OH)₂	2	1	Wikipedia	NIST
Cu+	Cu⁺	5	10		NIST
Cu2+	Cu²⁺	3	18		NIST
Cu2O	Cu₂O	4	1	Wikipedia	NIST
Cu2S	Cu₂S	1		Wikipedia	NIST
CuBr	CuBr	1	2	Wikipedia	NIST
CuBr2	CuBr₂			Wikipedia	NIST
CuCl	CuCl	4	6	Wikipedia	NIST
CuCl2	CuCl₂	1	7	Wikipedia	NIST
[CuCl4]2-	[CuCl₄]^2–	4	1		NIST
[CuCl4]3-	[CuCl₄]^3–	2	1		NIST
CuCN	CuCN	2	1	Wikipedia	NIST
CuCO3	CuCO₃ ^(unknown)	2	1	Wikipedia	NIST
CuCO3.Cu(OH)2	CuCO₃. Cu(OH)₂			Wikipedia	NIST
2CuCO3.Cu(OH)2	2CuCO₃. Cu(OH)₂			Wikipedia	NIST
CuF	CuF			Wikipedia	NIST
CuF2	CuF₂			Wikipedia	NIST
CuI	CuI	2		Wikipedia	NIST
Cumene		1	1	Wikipedia	NIST
Cumene hydroperoxide		1	1		NIST
Cumulene (generic)	R₂X=Y=Z			Wikipedia
CuO	CuO	4	4	Wikipedia	NIST
Cupric bromide	CuBr₂			Wikipedia	NIST
Cupric carbonate	CuCO₃ ^(unknown)	2	1	Wikipedia	NIST
Cupric carbonate, basic	CuCO₃. Cu(OH)₂			Wikipedia	NIST
Cupric chloride	CuCl₂	1	7	Wikipedia	NIST
Cupric fluoride	CuF₂			Wikipedia	NIST
Cupric hydroxide	Cu(OH)₂	2	1	Wikipedia	NIST
Cupric ion	Cu²⁺	3	18		NIST
Cupric nitrate	Cu(NO₃)₂	4	1	Wikipedia	NIST
Cupric oxide	CuO	4	4	Wikipedia	NIST
Cupric sulfate pentahydrate	CuSO₄.5H₂O	1	2	Wikipedia	NIST
Cupric sulfate, anhydrous	CuSO₄	2	4	Wikipedia	NIST
Cupric sulfide		1	1	Wikipedia	NIST
Cupric tetrafluoroborate	Cu(BF₄)₂	1			NIST
Cuprite	Cu₂O		1	Wikipedia
Cuprous bromide	CuBr	1	2	Wikipedia	NIST
Cuprous chloride	CuCl	4	6	Wikipedia	NIST
Cuprous cyanide	CuCN	2	1	Wikipedia	NIST
Cuprous iodide	CuI	2		Wikipedia	NIST
Cuprous ion	Cu⁺	5	10		NIST
Cuprous oxide	Cu₂O	4	1	Wikipedia	NIST
Cuprous sulfide	Cu₂S	1		Wikipedia	NIST
Cuprous thiocyanate	CuSCN	1			NIST
Cuprum	Cu	11	10	Wikipedia	NIST
Curium	Cm			Wikipedia	NIST
CuS		1	1	Wikipedia	NIST
CuSCN	CuSCN	1			NIST
CuSO4	CuSO₄.5H₂O	1	2	Wikipedia	NIST
CuSO4	CuSO₄	2	4	Wikipedia	NIST
CuSO4.5H2O	CuSO₄.5H₂O	1	2	Wikipedia	NIST
Cyanamide	HN=C=NH	2	3	Wikipedia	NIST
Cyanamide ion	[N=C=N]^–			Wikipedia	NIST
Cyanamide, calcium salt	CaNCN	1	3	Wikipedia	NIST
Cyanate (generic)	R–O–C≡N	2		Wikipedia
Cyanate ion	[NCO]^–	3	4	Wikipedia	NIST
Cyanic acid	HNCO	1			NIST
Cyanide ion	[CN]^–	5	27	Wikipedia	NIST
Cyanide, organic (generic)	R–CN	5	11
E-2-Cyano-2-butene		1			NIST
Z-2-Cyano-2-butene		1			NIST
12-Cyano-9,10-dihydro-9,10-ethano-10a-azonaanthracene		1			NIST
4-Cyano-bicyclo[2.2.2]octa-2-ene		1			NIST
Cyanoacetate ion			1		NIST
Cyanoacetic acid		1			NIST
1-Cyanobutan-1-ol		1			NIST
Cyanogen	N≡C–C≡N	1	1	Wikipedia	NIST
Cyanogen azide	N≡C–N₃		1		NIST
Cyanogen bromide	N≡C–Br		1	Wikipedia	NIST
Cyanogen chloride	N≡C–Cl	1	4	Wikipedia	NIST
Cyanogen iodide	I–C≡N		1	Wikipedia	NIST
2-Cyanoguanidine		1	1	Wikipedia	NIST
Cyanohydrin (AS/A2 generic)		2		Wikipedia
Cyanohydrin, alkyl (generic)		2
Cyanohydrin, dialkyl (generic)		1
Cyanonitrene	N≡C–N	1			NIST
3-Cyanopropanoate		1			NIST
3-Cyanopyridine		1	2		NIST
Cyanuric amide		2	1	Wikipedia	NIST
Cyanuric chloride		1		Wikipedia	NIST
Cyanurotriamide		2	1	Wikipedia	NIST
Cyclic adenosine monophosphate	cAMP			Wikipedia	NIST
Cyclic AMP	cAMP			Wikipedia	NIST
Cyclic ester (generic)				Wikipedia
Cyclic GMP	cGTP			Wikipedia	NIST
Cycloalkane (generic)		1		Wikipedia
Cycloalkane synthon (generic)			1
Cyclobutane		2	1	Wikipedia	NIST
Cyclobutanide anion			1	Wikipedia	NIST
Cyclobutanone		1			NIST
Cyclobutene				Wikipedia	NIST
Cyclobutyl anion			1	Wikipedia	NIST
trans, trans, cis-1,5,9-Cyclododecatriene		1			NIST
Cycloheptane				Wikipedia	NIST
Cycloheptatriene		1	1	Wikipedia	NIST
Cycloheptatriene anion			1	Wikipedia	NIST
Cycloheptatriene anion (generic)
Cycloheptatriene chromium tricarbonyl		1			NIST
1,3-Cyclohexadien-5-yne		3	2	Wikipedia	NIST
1,3-Cyclohexadiene			1	Wikipedia	NIST
1,4-Cyclohexadiene			1	Wikipedia	NIST
2,5-Cyclohexadiene-1,4-dione		3	1	Wikipedia	NIST
Cyclohexane		5	7	Wikipedia	NIST
Cyclohexane carboxylic acid		1	1		NIST
Cyclohexanide anion			1	Wikipedia	NIST
Cyclohexanol		5	3	Wikipedia	NIST
Cyclohexanol, cis 4-tertiary butyl		1			NIST
Cyclohexanone		5	5	Wikipedia	NIST
Cyclohexanone enolate ion			1	Wikipedia	NIST
Cyclohexanone oxime		3	1		NIST
Cyclohexene		3	8	Wikipedia	NIST
Cyclohexene oxide		2	1		NIST
Cyclohexene sulfide		1			NIST
Cyclohexene-3-ide anion			1	Wikipedia	NIST
3-Cyclohexene carboxaldehyde		1			NIST
2-Cyclohexenol		2			NIST
2-Cyclohexenone		4	2	Wikipedia	NIST
Cyclohexenyl anion			1	Wikipedia	NIST
((1-Cyclohexenyl)methylidene)propanedinitrile			1		NIST
Cyclohexyl anion			1	Wikipedia	NIST
Cyclohexyl isocyanide				Wikipedia	NIST
Cyclohexylamine		1		Wikipedia	NIST
Cyclohexylbenzene		1			NIST
Cyclohexylchloride		1			NIST
Cyclohexyl trimethyl ammonium ion			1		NIST
Cyclonite		1	3	Wikipedia	NIST
1,5-Cyclooctadiene		1	1	Wikipedia	NIST
Cyclooctatetrene dianion			1		NIST
Cyclooctatetrene dianion (generic)
Cyclopentadiene		3	3	Wikipedia	NIST
Cyclopentadiene dimer			1	Wikipedia	NIST
2,4-Cyclopentadienone			1		NIST
Cyclopentadienyl anion			6	Wikipedia	NIST
Cyclopentadienyl anion (generic)
Cyclopentadienyl sodium		1			NIST
Cyclopentane		2		Wikipedia	NIST
Cyclopentane carboxylate ion		1	1		NIST
Cyclopentane carboxylic acid		1			NIST
Cyclopentanide anion			2	Wikipedia	NIST
Cyclopentanol		2		Wikipedia	NIST
Cyclopentanone		2	2	Wikipedia	NIST
2-Cyclopentenol		2			NIST
2-Cyclopentenone			2		NIST
Cyclopentyl anion			2	Wikipedia	NIST
Cyclopropane		2		Wikipedia	NIST
Cyclopropane (generic)		3
Cyclopropane carboxylate ion			1		NIST
Cyclopropane carboxylic acid		1			NIST
Cyclopropane methanol					NIST
Cyclopropane synthon (generic)			1
Cyclopropanide anion			1	Wikipedia	NIST
Cyclopropene		1		Wikipedia	NIST
Cyclopropene-3-ide anion			1	Wikipedia	NIST
Cyclopropenyl anion			1	Wikipedia	NIST
alpha-Cyclopropyl cation			1		NIST
Cyclopropyl anion			1	Wikipedia	NIST
Cyclopropyl bromide			1		NIST
Cyclopropyl phenyl thioether		1			NIST
Cyclopropyl, methyl cation synthon (generic)		1
Cyclopropylbenzene		1			NIST
1-Cyclopropylethanone		1			NIST
Cyclopropylmethanium ion			1		NIST
Cyclopropylmethyl ketone		1			NIST
Cyclotetramethylenetetranitramine			1	Wikipedia	NIST
Cyclotrimethylenetrinitramine		1	3	Wikipedia	NIST
Cys		1	1	Wikipedia	NIST
Cysteine		1	1	Wikipedia	NIST
Cysteine, deprotonated		1	1	Wikipedia	NIST
Cysteine, doubly-deprotonated			1	Wikipedia	NIST
Cysteine, protonated		1		Wikipedia	NIST
Cytosine	Cytosine C		1	Wikipedia	NIST
Cytosine/Guanine dimer	C≡G	1			NIST
D (aspartic acid)		1	1	Wikipedia	NIST
D+	D⁺		1		NIST
D^-	D^–		1	Wikipedia	NIST
d-Block element (generic)	d-Block Element			Wikipedia
d-Block element, first row (AS/A2 generic)
D₂	D₂	1	1	Wikipedia	NIST
D2O	D₂		1	Wikipedia	NIST
DABCO				Wikipedia	NIST
Dark red gold	Dark Red Gold				NIST
Darmstadtium	Ds			Wikipedia	NIST
Db	Db			Wikipedia	NIST
DBN				Wikipedia	NIST
DBTDL	DBTDL		1		NIST
DBU				Wikipedia	NIST
DCC				Wikipedia	NIST
DCM	CH₂Cl₂	6	3	Wikipedia	NIST
DDT	DDT	1		Wikipedia	NIST
Dean and Stark Trap			7	Wikipedia
cis beta-Decalone		4			NIST
trans beta-Decalone		4			NIST
Dentist's amalgam	Dentist's Amalgam			Wikipedia	NIST
Deoxyribonucleic acid (generic)	DNA		1	Wikipedia
Depleted uranium	dU			Wikipedia	NIST
Descloizite	Pb(Zn,Cu) VO₄(OH)			Wikipedia
Detergent, WAS		2		Wikipedia	NIST
Deuteride ion	D^–		1	Wikipedia	NIST
Deuterium	D₂	1	1	Wikipedia	NIST
Deuterium (nuclear chemistry)	²H	1	1	Wikipedia	NIST
Deuterium oxide	D₂		1	Wikipedia	NIST
Deuterium, protonated		1			NIST
Deuteron	D⁺		1		NIST
Dextrose		6	5	Wikipedia	NIST
DHMO	H₂O	529	531	Wikipedia	NIST
Di(2-chloroethyl) sulfide	S(CH₂CH₂Cl)₂	1		Wikipedia	NIST
Di-n-butyldilauraltin	DBTDL		1		NIST
2,6-Di-tert-butyl-4-methyl pyridine			1		NIST
Diaboletite	Pb₂CuCl₂(OH)₄
Diacetone alcohol		1	1		NIST
Diacetylmorphine		1		Wikipedia	NIST
Dialin		1			NIST
Dialkoxyaluminium hydride ion (generic)	[(RO)₂AlH₂]^–
Dialkoxyborohydride ion (generic)	[(RO)₂BH₂]^–
Dialkoxycarbenium ion (generic)			2
Dialkoxyhydroxy carbenium ion (generic)		1
Dialkyl arsine (generic)	R₂AsH	1
Dialkyl ketene (generic)	R₂C=C=O		1	Wikipedia
Dialkyl ketone (generic)		6	20	Wikipedia
Dialkyl ketone, alpha-H (generic)		3	1
protonated Dialkyl ketone (generic)		1
Dialkyl oxonium ion (generic)	[R₂OH]⁺	1	1
Dialkyl sulfide (generic)	R₂S	2	5
Dialkyl telluronium ion (generic)	[R₂TeH]⁺	1
Dialkylaluminium hydride ion (generic)	[R₂AlH₂]^–
Dialkylamide anion (generic)			3
Dialkylborohydride ion (generic)	[R₂BH₂]^–
Dialkylcarbenium ion (generic)	[R₂CH]⁺		3
Dialkylether (generic)		2	2	Wikipedia
Dialkylhydroxy carbenium ion (generic)		1
Dialkylnitranion (generic)			3
Dialkylsulfonium ion (generic)	[R₂SH]⁺	1
1,4-Diaminobenzene		2			NIST
para-Diaminobenzene		2			NIST
4,4-Diaminobiphenyl			1	Wikipedia	NIST
1,4-Diaminobutane		2		Wikipedia	NIST
1,2-Diaminoethane		2	4	Wikipedia	NIST
1,6-Diaminohexane		1	1	Wikipedia	NIST
Diamminosilver(I) ion	[Ag(NH₃)₂]⁺	3	3		NIST
Diammonium peroxodisulfate	(NH₄)₂S₂O₈	2	1		NIST
Diamond	C ^Diamond			Wikipedia	NIST
Diamond	C _Diamond			Wikipedia
Diamorphine		1		Wikipedia	NIST
Diaspore	AlO(OH)		1	Wikipedia
Diatomaceous earth	Kieselguhr		1	Wikipedia
1,4-Diazabicyclo[2.2.2]octane				Wikipedia	NIST
1,5-Diazabicyclo[4.3.0]non-5-ene				Wikipedia	NIST
1,8-Diazabicyclo[5.4.0]undec-7-ene				Wikipedia	NIST
Diazane	H₂N–NH₂	5	11	Wikipedia	NIST
Diazene	HN=NH			Wikipedia	NIST
Diazene (generic)	R–N=N–R'			Wikipedia
Diazene oxide (generic)				Wikipedia
Diazepam					NIST
1,2-Diazine				Wikipedia	NIST
1,3-Diazine				Wikipedia	NIST
1,4-Diazine				Wikipedia	NIST
Diazoketone (generic)		1
1,2-Diazole				Wikipedia	NIST
Diazomethane	CH₂N₂	1	4	Wikipedia	NIST
1,3-Diazole		1	1	Wikipedia	NIST
Diazonium coupling adduct (generic)		1
Diazonium ion (generic)				Wikipedia
Diazonium ion, phenyl		2	11		NIST
DIBAH		1	2	Wikipedia	NIST
Dibenzithiazine				Wikipedia	NIST
Dibenzoyl peroxide	(C₆H₅COO)2		3	Wikipedia	NIST
Dibenzylamine		1			NIST
Dibenz[a,h]anthracene					NIST
Diborane	B₂H₆	6	14	Wikipedia	NIST
Dibromine	Br₂	13	55	Wikipedia	NIST
(+/-) trans 1,2-Dibromocyclohexane		1			NIST
1,2-Dibromoethane		1	4	Wikipedia	NIST
1,2-Dibromopropane		2			NIST
1,3-Dibromopropane			1	Wikipedia	NIST
Di-tertary-butoxycarbonate		1			NIST
Dibutyltin dilayrate	DBTDL		1		NIST
Dichlorine	Cl₂	30	124	Wikipedia	NIST
Dichlorine heptoxide	Cl₂O₇	1	1	Wikipedia	NIST
Dichlorine monoxide	Cl₂O	1	3	Wikipedia	NIST
Dichloro(2-chlorovinyl)arsine		1		Wikipedia	NIST
3,4-Dichloro-1-butene		1	1		NIST
1,4-Dichloro-2-butene		1	1		NIST
D(-)threo-2,2-Dichloro-N-[b-hydroxy-a-(hydroxymethyl)-p-nitrophenyl]acetamide		1		Wikipedia	NIST
Dichloroacetate ion	[CHCl₂COO]^–		1		NIST
Dichloroacetic acid	CHCl₂COOH	2		Wikipedia	NIST
trans 1,2-Dichloroalkene (generic)		1	1
7,7-Dichlorobicyclo[4.1.0]hept-3-ene		1	1		NIST
trans-Dichlorobis(ethylenediamine)cobalt(III)	[CoCl₂(en)₂]⁺				NIST
Dichlorocarbene	CCl₂	2		Wikipedia	NIST
(+/-) trans 1,2-Dichlorocyclohexane		1			NIST
2,2'-Dichlorodiethyl sulfide	S(CH₂CH₂Cl)₂	1		Wikipedia	NIST
Dichlorodifluoromethane	CCl₂F₂	4	1	Wikipedia	NIST
Dichlorodimethylsilane	(CH₃)₂SiCl₂	1	1	Wikipedia	NIST
1,1-Dichloroethane	CH₃CHCl₂	1	1	Wikipedia	NIST
1,2-Dichloroethane	CH₂ClCH₂Cl	3	10		NIST
1,1-Dichloroethene	H₂C=CCl₂	1	1	Wikipedia	NIST
Dichloromethane	CH₂Cl₂	6	3	Wikipedia	NIST
Dichloromethane radical	Cl₂HC•	1	1		NIST
1,5-Dichloropentane	Cl(CH₂)₅Cl		1		NIST
Dichlorosilver(I) ion	[AgCl₂]^–	2			NIST
Dichlorotetraaquachromium(III) ion	[CrCl₂(H₂O)₄]⁺	1	1		NIST
Dichlorotetraaquavanadium(III) ion	[VCl₂(H₂O)₄]⁺	2	2		NIST
Dichromate(VI) ion	[Cr₂O₇]^2–	1	13	Wikipedia	NIST
Dicobalt octacarbonyl	Co₂(CO)₈			Wikipedia	NIST
Dicobalt octacarbonyl	Co₂(CO)₈	1	1		NIST
Dicyan	N≡C–C≡N	1	1	Wikipedia	NIST
1,4-Dicyanobutane		3	1	Wikipedia	NIST
Dicyanodiamide		1	1	Wikipedia	NIST
1,2-Dicyanoethane		4	2		NIST
Dicyanosilver(I) ion	[Ag(CN)₂]^–	6	3		NIST
Dicyclohexylamine		1			NIST
Dicyclohexylcarbodiimide				Wikipedia	NIST
Dicyclopentadiene			1	Wikipedia	NIST
Dicyclopentadienyliron		1		Wikipedia	NIST
Dicyclopentadienylnickel		1		Wikipedia	NIST
Diels-Alder adduct (generic)
Diene (generic)			1
Diene HOMO (generic)
Diene LUMO (generic)
Diesel	Gas Oil	1	8	Wikipedia	NIST
1,2-Diethenylcyclopropane		1			NIST
12,12-Diethoxy-9,10-dihydro-9,10-ethano-10a-azonaanthracene		1			NIST
1,1-Diethoxyethene			2		NIST
Diethyl adipate			1		NIST
Diethyl aluminium cyanide		1			NIST
Diethyl malonate			1	Wikipedia	NIST
Diethyl malonate carbanion			1		NIST
Diethyl sulfate	(C₂H₅O)₂SO₂	1	1	Wikipedia	NIST
5,5-Diethylbarbituric acid				Wikipedia	NIST
Diethylene dioxide		2	1	Wikipedia	NIST
Diethylene glycol dimethyl ether			2	Wikipedia	NIST
Diethylether		3	17	Wikipedia	NIST
Diethylisopropyl malonate		1			NIST
Diethyloxonium ion		1			NIST
Diethylsulfonium ion	[(CH₃CH₂)₂SH]⁺	1			NIST
Diethylthioether	(CH₃CH₂)₂S		1		NIST
Difluorine	F₂	3	57	Wikipedia	NIST
Difluorochloronium ion	[ClF₂]⁺	2			NIST
Difluoromethyl iodide	CH₃IF	1			NIST
Diformyl		1	1	Wikipedia	NIST
Diglyme			2	Wikipedia	NIST
3,4-Dihydro-1(2H)-naphthalenone		4			NIST
1,4-Dihydro-1,4-methanonaphthalene		1			NIST
1,2-Dihydrobenzene			1	Wikipedia	NIST
Dihydrogen	H₂	139	158	Wikipedia	NIST
Dihydrogen arsenate ion	[H₂AsO₄]^–	1	1		NIST
Dihydrogen cation	[H₂]^+•	2	1		NIST
Dihydrogen citrate ion		1	1		NIST
Dihydrogen disulfide	HSSH	1			NIST
Dihydrogen germanate ion	[H₂GeO₄]^2–		1		NIST
Dihydrogen monoxide	H₂O	529	531	Wikipedia	NIST
Dihydrogen phosphate ion	[H₂PO₄]^–	1	3		NIST
1,2-Dihydronaphthalene		1			NIST
Dihydronitroyl (generic)
3,4-Dihydro-2H-pyran					NIST
3,4-Dihydropyrazole		1	1		NIST
4,5-Dihydropyrazole		1			NIST
2,5-Dihydrothiophene-1,1-dioxide		1	1	Wikipedia	NIST
(-)-3,4-Dihydroxy-1-[1-hydroxy-2-(methylamino)ethyl]benzene				Wikipedia	NIST
2,4-Dihydroxy-5-methylpyrimidine	Thymine T		1	Wikipedia	NIST
Dihydroxyacetone				Wikipedia	NIST
9,10-Dihydroxyanthracene		1	1		NIST
1,4-Dihydroxybenzene		2		Wikipedia	NIST
1,3-Dihydroxybutane		1	1		NIST
d/l-2,3-Dihydroxybutanedioic acid		2		Wikipedia	NIST
1,2-Dihydroxyethane		6	9	Wikipedia	NIST
Dihydroxymethyl carbenium ion		1			NIST
2,2-Dihydroxymethyl-1,3-propanediol		1	1	Wikipedia	NIST
Dihydroxynitroyl (generic)
Dihydroxyphosphane (generic)
(2R)-2,3-Dihydroxypropanal			1		NIST
1,3-Dihydroxypropanone				Wikipedia	NIST
Diidomethane	CH₂I₂		2		NIST
Diimide	HN=NH			Wikipedia	NIST
Diiron nonacarbonyl	Fe₂(CO)₉	1		Wikipedia	NIST
Diisobutylaluminium hydride		1	2	Wikipedia	NIST
Diisopropylamide anion			2		NIST
Diisopropylamine		2		Wikipedia	NIST
N,N-Diisopropylethylamine					NIST
Diisopropylnitranion			2		NIST
Diketene		1		Wikipedia	NIST
beta-Diketone anion (generic)			1	Wikipedia
beta-Diketone (generic)		1
2,5-Diketotetrahydrofuran		2			NIST
Dilute ammonia solution	NH₃(aq)	2	18	Wikipedia	NIST
Dilute hydrochloric acid	HCl(aq)	2	13	Wikipedia	NIST
Dilute mineral acid (generic)	H⁺(aq)		15
Dilute nitric acid	HNO₃(aq)	3	3	Wikipedia	NIST
Dilute sodium hydroxide	NaOH(aq)	5	37	Wikipedia	NIST
Dilute sulfuric acid	H₂SO₄(aq)	3	11	Wikipedia	NIST
Dimanganese decacarbonyl	Mn₂(CO)₁₀			Wikipedia	NIST
cis Dimethyl butendioate			1		NIST
cis Dimethyl butendioate anhydride		4	8	Wikipedia	NIST
trans Dimethyl butendioate			1		NIST
Dimethyl carbenium ion		3	7		NIST
Dimethyl ether			3	Wikipedia	NIST
Dimethyl fumarate			1		NIST
Dimethyl ketone		15	19	Wikipedia	NIST
Dimethyl maleate			1		NIST
Dimethyl nitranion	[(CH₃)₂N]^–		1		NIST
2,2-Dimethyl propane			1	Wikipedia	NIST
Dimethyl sulfonium ion	[(CH₃)₂SH]⁺	1			NIST
Dimethyl (4R,5S)-cyclohexene-4,5-dicarboxylate		1			NIST
Dimethyl (4S,5S)-cyclohexene-4,5-dicarboxylate		1			NIST
2,3-Dimethyl-1,3-butadiene			1		NIST
cis-5,6-Dimethyl-1,3-cyclohexadiene		2			NIST
trans-5,6-Dimethyl-1,3-cyclohexadiene		2			NIST
4,4-Dimethyl-1,3-dioxane		1	1		NIST
3,3-Dimethyl-2-butanone		1	1	Wikipedia	NIST
4,5-Dimethyl-4-cyclohexene-1,2-dicarboxylic acid anhydride		1			NIST
Dimethylacetylene	CH₃–C≡C–CH₃			Wikipedia	NIST
Dimethylamide anion	[(CH₃)₂N]^–		1		NIST
Dimethylamine	(CH₃)₂NH	4	3	Wikipedia	NIST
1-(N,N-Dimethylamino)-1,4-cyclohexadiene		1	1		NIST
1-(N,N-Dimethylamino)cyclohexene			1	Wikipedia	NIST
3-[2-(Dimethylamino)ethyl]indol-4-ol				Wikipedia	NIST
1,8-bis(Dimethyl amino) naphthalene					NIST
4-[4-(Dimethylamino)phenylazo]benzenesulfonic acid, sodium salt	Methyl Orange			Wikipedia	NIST
4-[4-(Dimethylamino)phenylazo]benzoic acid	Methyl Red			Wikipedia	NIST
10-N,N-Dimethylamino-9,9-dicyanotricyclo[8.4.2(2,7).0]tetradec-7,8-ene		1			NIST
Dimethylammonium ion	[(CH₃)₂NH₂]⁺	1			NIST
N,N-Dimethyl aniline			2		NIST
1,3-Dimethylbenzene			1	Wikipedia	NIST
1,4-Dimethylbenzene		2	1	Wikipedia	NIST
alpha, alpha-Dimethylbenzyl hydroperoxide		1	1		NIST
3,3-Dimethylbutan-2-one		1	1	Wikipedia	NIST
cis-3,4-Dimethylcyclobutene		2			NIST
trans-3,4-Dimethylcyclobutene		2			NIST
cis 1,2- Dimethylcyclohexane		1			NIST
1,2-Dimethylcyclohexene			1		NIST
Dimethyldioxirane			1	Wikipedia	NIST
Dimethylenemethane	H₂C=C=CH₂			Wikipedia	NIST
Dimethylether/Hydrogen fluoride Complex		1			NIST
Dimethylethylcarbenium ion		1		Wikipedia	NIST
Dimethylethylcarbenium ion		1	1		NIST
Dimethylformamide		2	2	Wikipedia	NIST
Dimethylformamide, protonated		1			NIST
Dimethylhydroxy carbenium ion		1			NIST
Dimethyloxonium ion		1			NIST
Dimethylphenyl carbenium ion					NIST
Dimethylphenylamine			2		NIST
Dimethylphenyl phosphine					NIST
Dimethylphosphoramidocyanic acid, ethyl ester				Wikipedia	NIST
2,2-Dimethylpropanoic acid	(CH₃)₃C–COOH	1			NIST
2,2-Dimethylpropanoic acid		1			NIST
2,2-Dimethylpropyl-1-ium ion		1	1		NIST
Dimethylsulfoxide		3	5	Wikipedia	NIST
Dimethylsulfoxide anion			1	Wikipedia	NIST
Dimethylsulfoxide, protonated		1			NIST
Dimethylthioether	(CH₃)₂S	1	2		NIST
Dimsyl ion			1	Wikipedia	NIST
Dinitrogen	N₂	56	20		NIST
Dinitrogen hydride	H₂N–NH₂	5	11	Wikipedia	NIST
Dinitrogen monoxide	N₂O	4	2	Wikipedia	NIST
Dinitrogen pentoxide	N₂O₅	2	4	Wikipedia	NIST
Dinitrogen tetroxide	N₂O₄	2	6		NIST
Dinitrogen trioxide	N₂O₃	2	2	Wikipedia	NIST
Dinitromethane	(NO₂)₂CH₂	1			NIST
Dinitromethane anion	[(NO₂)₂CH]^–		1	Wikipedia	NIST
2,4-Dinitrophenol		1		Wikipedia	NIST
2,4-Dinitrophenoxide ion			1		NIST
2,4-Dinitrophenyl hydrazine				Wikipedia	NIST
Diodine	I₂	29	42	Wikipedia	NIST
Diol (generic)	HO–(CH₂)_n–OH			Wikipedia
trans 1,2-Diol (generic)		1
Diopside	MgCaSi₂O₆			Wikipedia
Dioptase	CuSiO₂(OH)₂			Wikipedia
1,4-Dioxane		2	1	Wikipedia	NIST
1,4-Dioxane, protonated		1			NIST
Dioxide, lead	PbO₂		4	Wikipedia	NIST
1,3-Dioxolan-2-one		1	1	Wikipedia	NIST
Dioxovanadium(V) ion	[VO₂]⁺ [VO(H₂O)₅]³⁺	2	3		NIST
Dioxygen	O₂	60	163	Wikipedia	NIST
Dioxygen cation	[O–O]⁺	1			NIST
Dioxygen difluoride	O₂F₂	1		Wikipedia	NIST
Diphenyl		2		Wikipedia	NIST
Diphenyl amide anion			1	Wikipedia	NIST
Diphenyl carbenium ion			1		NIST
1,2-Diphenyl ethane		1			NIST
Diphenyl ether					NIST
Diphenyl nitranion			1	Wikipedia	NIST
Diphenyl phosphine		1			NIST
Diphenyl phosphine anion			1		NIST
Diphenylamine		1	1	Wikipedia	NIST
Diphenylammonium ion		1			NIST
Diphenyldiazene					NIST
Diphenylenemethane		1		Wikipedia	NIST
Diphenylketone		4	3	Wikipedia	NIST
Diphenylmethane		1		Wikipedia	NIST
Diphenylmethanol		1		Wikipedia	NIST
Diphenylmethyl anion			1	Wikipedia	NIST
Diphenylmethylium ion			1		NIST
Diphosphine	P₂H₆			Wikipedia	NIST
Diphosphorus	P₂	2		Wikipedia	NIST
Diprotic acid (AS/A2 generic)
2,2-Dipyridyl			2	Wikipedia	NIST
Diradical (generic)	↑X↓ ^Diradical			Wikipedia
Dirhenium heptoxide	Re₂O₇			Wikipedia	NIST
Diselenium dibromide	S₂Br₂	2			NIST
Diselenium dichloride	Se₂Cl₂	1			NIST
Disiamylborane		2	1		NIST
Disilver fluoride	Ag₂F			Wikipedia	NIST
Disodium oxalate		2	1	Wikipedia	NIST
Disodium peroxodisulfate	Na₂S₂O₈	1			NIST
Dissolved Metal Reducing Agent (generic)				Wikipedia
Disthene	Al₂SiO₅			Wikipedia
1,1-Disubstituted alkene (generic)				Wikipedia
Disulfide (hydrogen) ion	[HSS]^–	1	1		NIST
Disulfide anion, organic (generic)	[RSS]^–	1	1
Disulfide dianion	^–S–S^–	5	2	Wikipedia	NIST
Disulfide, organic (generic)	R–S–S–R	4
Disulfite ion			2		NIST
Disulfur	S₂	1		Wikipedia	NIST
Disulfur decafluoride	S₂F₁₀	1	1	Wikipedia	NIST
Disulfur dichloride	Cl–S–S–Cl	2	5	Wikipedia	NIST
Disulfur dinitrogen		1	1		NIST
Disulfuric acid	H₂S₂O₇	1	6	Wikipedia	NIST
Disulfurous acid		1			NIST
Ditan		1		Wikipedia	NIST
1,3-Dithiane anion (generic)			1	Wikipedia
Dithiane, 2-alkyl, -1,3- (generic)		1	1
1,2-Dithioethane		1	2		NIST
1,2-Dithioethane dianion			1		NIST
1,2-Dithioethane monoanion		1	1		NIST
2,2-Bi-1,3-dithiole			1	Wikipedia	NIST
Dithionate ion			2	Wikipedia	NIST
Dithionic acid		1			NIST
Dithionite ion		1	3	Wikipedia	NIST
Dithionous acid		1			NIST
Dithiosulfatosilver(I) ion	[Ag(S₂O₃)₂]^3–	3			NIST
Dithiosulfinic acid (generic)
Dithiosulfonic O-acid (generic)
Dithiosulfonic S-acid (generic)
DMDO			1	Wikipedia	NIST
DMF		2	2	Wikipedia	NIST
DMSO		3	5	Wikipedia	NIST
DMSO anion			1	Wikipedia	NIST
DNA (generic)	DNA		1	Wikipedia
Dodecanoic acid	CH₃(CH₂)₁₀COOH	1		Wikipedia	NIST
DOH	DOH	1			NIST
Dolomite	CaMg(CO₃)₂			Wikipedia
Dolophine, Amidone, Methadose, Physeptone, Heptadon				Wikipedia	NIST
Dowmetal O	Dowmetal O				NIST
Down quark	d		3	Wikipedia
Drug (generic)				Wikipedia
Ds	Ds			Wikipedia	NIST
dU	dU			Wikipedia	NIST
Dubnium	Db			Wikipedia	NIST
Dumortierite	(Al,Fe)₇BSi₃O₁₈			Wikipedia
Duraloy B	Duraloy B				NIST
Duteronium ion		1			NIST
Dvi-tellurium	Po			Wikipedia	NIST
Dy	Dy			Wikipedia	NIST
Dy2O3	Dy₂O₃				NIST
DyBr3	DyBr₃			Wikipedia	NIST
DyCl3	DyCl₃			Wikipedia	NIST
DyF3	DyF₃				NIST
DyI3	DyI₃				NIST
Dynamite	DYNAMITE	1		Wikipedia
Dysprosia	Dy₂O₃				NIST
Dysprosium	Dy			Wikipedia	NIST
Dysprosium bromide	DyBr₃			Wikipedia	NIST
Dysprosium fluoride	DyF₃				NIST
Dysprosium iodide	DyI₃				NIST
Dysprosium oxide	Dy₂O₃				NIST
Dysprosium(III) chloride	DyCl₃			Wikipedia	NIST
E (glutamic acid)		1	1	Wikipedia	NIST
E+ (generic)				Wikipedia
E, neutral (generic)				Wikipedia
e-	e^–	15	127	Wikipedia	NIST
e-(am)	e^–(am)	5	2		NIST
EDC	CH₂ClCH₂Cl	3	10		NIST
EDTA		1		Wikipedia	NIST
EDTA dianion		1	1		NIST
EDTA monoanion		1	1		NIST
EDTA tetraanion			5		NIST
EDTA trianion		1	1		NIST
Efg+ (generic)		4
Efg, neutral (generic)
Eicosanic acid	CH₃(CH₂)₁₈COOH			Wikipedia	NIST
(5Z, 8Z, 11Z, 14Z, 17Z)-Eicosapentaeneoic acid	EPA			Wikipedia	NIST
(5Z, 8Z, 11Z, 15Z)-Eicosatetraenoic acid	Arachidonic Acid			Wikipedia	NIST
Eigen Cation		1		Wikipedia	NIST
Einsteinium	Es			Wikipedia	NIST
Eka-aluminium	Ga	5	7	Wikipedia	NIST
Eka-boron	Sc			Wikipedia	NIST
Eka-caesium	Fr			Wikipedia	NIST
Eka-manganese	Tc			Wikipedia	NIST
Eka-mercury	Cn			Wikipedia	NIST
Eka-silicon	Ge	4	1	Wikipedia	NIST
Eka-tantalum	Pa				NIST
Electrical steel	Silicon Steel			Wikipedia	NIST
Electrofugal charged Lewis acid, Efg+ (generic)		4
Electrofugal neutral Lewis acid, Efg (generic)
Electrofuge, charged (generic)		4
Electrofuge, neutral (generic)
Electron	e^–	15	127	Wikipedia	NIST
Electron (radiochemistry)	β	32	3	Wikipedia	NIST
Electron antineutrino		2	1	Wikipedia
Electron neutrino		2		Wikipedia
Electron, ammoniated	e^–(am)	5	2		NIST
Electrophile (AS/A2 generic)				Wikipedia
Electrophile (generic)				Wikipedia
Electrophile, cationic (generic)				Wikipedia
Electrophile, neutral (generic)				Wikipedia
Electrophilic charged Lewis acid, E+ (generic)				Wikipedia
Electrophilic neutral Lewis acid (generic)				Wikipedia
Element, Group VII (AS/A2 generic)				Wikipedia
Element, d-block (AS/A2 generic)
Element, Group 1 (generic)	Group Ia/1 Alkali Metals			Wikipedia
Element, Group 2 (generic)	Group IIa/2 Alkaline Earth Metals			Wikipedia
Element, Group 3 (generic)	Group IIIb/3 Scandium Family			Wikipedia
Element, Group 4 (generic)	Group IVb/4 Titanium Family			Wikipedia
Element, Group 5 (generic)	Group Vb/5 Vanadium Family			Wikipedia
Element, Group 6 (generic)	Group VIb/6 Chronium Family			Wikipedia
Element, Group 7 (generic)	Grou VIIb/7 Manganese Family			Wikipedia
Element, Group 8 (generic)	Group VIIIb/8 Iron Family			Wikipedia
Element, Group 9 (generic)	Group VIIIb/9 Cobalt Family			Wikipedia
Element, Group 10 (generic)	Group VIIIb/10 Nickel Family			Wikipedia
Element, Group 11 (generic)	Group Ib/11 Copper Group			Wikipedia
Element, Group 12 (generic)	Group IIb/12 Zinc Family			Wikipedia
Element, Group 13 (generic)	Group IIIa/13 Boron Group
Element, Group 14 (generic)	Group IVa/14 Carbon Family			Wikipedia
Element, Group 15 (generic)	Group Va/15 Pnictogens			Wikipedia
Element, Group 16 (generic)	Group VIa/16 Chalcogens			Wikipedia
Element, Group 17 (generic)	Group VIIa/17 Halogens			Wikipedia
Element, Group 18 (generic)	Group VIIIa/18 Noble Gases			Wikipedia
Element, group II (AS/A2 generic)
Element, Lanthanide (generic)	Lanthanide Element			Wikipedia
Element, metal cation (AS/A2 generic)			3	Wikipedia
Element, non-metal anion (AS/A2 generic)
Element, Period 1 (generic)	Period 1 Element			Wikipedia
Element, Period 2 (generic)	Period 2 Element			Wikipedia
Element, period 3 (AS/A2 generic)				Wikipedia
Element, Period 3 (generic)	Period 3 Element			Wikipedia
Element, Period 4 (generic)	Period 4 Element			Wikipedia
Element, Period 5 (generic)	Period 5 Element			Wikipedia
Element, Period 6 (generic)	Period 6 Element			Wikipedia
Element, Period 7 (generic)	Period 7 Element			Wikipedia
Element, transition metal (AS/A2 generic)				Wikipedia
Element, Actinide (generic)	Actinide Element
Element, Main group (generic)	Main Group Element			Wikipedia
Element, s or p-Block (generic)	Main Group Element			Wikipedia
Element, Transition metal (generic)	d-Block Element			Wikipedia
Elementary particle	Elementary Particle			Wikipedia
en		2	4	Wikipedia	NIST
Enal (generic)			1	Wikipedia
Enamine (generic)
Enamine anion (generic)
Enargite	Cu₃AsS₄			Wikipedia
Enol ether (generic)		1	1	Wikipedia
Enolate anion (generic)		1	5	Wikipedia
Enolate ion from methyl ketone (generic)			3	Wikipedia
Enolate, lithium (generic)		1		Wikipedia
Enone (generic)			1	Wikipedia
Enstatite	MgSiO₃			Wikipedia
Enzyme (generic)	Enzyme		1	Wikipedia
Enzyme substrate (generic)	Substrate ^{(for enzyme)}		1
Enzyme/Substrate Complex (generic)	Enzyme/Substrate ^complex	1
EO		2	13	Wikipedia	NIST
EPA	EPA			Wikipedia	NIST
Epichlorohydrin		3	1	Wikipedia	NIST
Epidote	Ca₂(Al,Fe)₃ Si₃O₁₂(OH)			Wikipedia
Epinephrine				Wikipedia	NIST
Episulfide, S-alkylated (generic)			2
Epoxide (generic)		3	5
Epoxide, O-alkylated (generic)			2
1,4-Epoxy-1,3-butadiene			1	Wikipedia	NIST
Epoxyethane		2	13	Wikipedia	NIST
Epsom salt	MgSO₄.7H₂O			Wikipedia
Epsomite	MgSO₄.7H₂O			Wikipedia
Equisetic acid		1	1	Wikipedia	NIST
Er	Er			Wikipedia	NIST
Er2O3	Er₂O₃			Wikipedia	NIST
Erbia	Er₂O₃			Wikipedia	NIST
Erbium	Er			Wikipedia	NIST
Erbium chloride hexahydrate	ErCl₃.6H₂O				NIST
Erbium fluoride	ErF₃				NIST
Erbium iodide	ErI₃				NIST
Erbium(III) bromide	ErBr₃.9H₂O				NIST
Erbium(III) oxide	Er₂O₃			Wikipedia	NIST
ErBr3	ErBr₃.9H₂O				NIST
ErCl3	ErCl₃.6H₂O				NIST
ErF3	ErF₃				NIST
ErI3	ErI₃				NIST
Erubescite	Cu₅FeS₄		2	Wikipedia
Erythrite	Co₃(AsO₄)₂ .8H₂O		1	Wikipedia
D-Erythrose		1	1	Wikipedia	NIST
D-Erythrulose				Wikipedia	NIST
Es	Es			Wikipedia	NIST
Ester (AS/A2 generic)		3	1	Wikipedia
Ester (generic)		7	11	Wikipedia
Ester stabilised carbanion (generic)
Ester, beta-hydrogen (generic)			1
Ester, cyclic (generic)				Wikipedia
Ester, formate (generic)	HCOOR	1
Ester, methyl (generic)		4	2
Ester, phenyl (generic)		4	2
Ester, protonated (generic)		1
Et2O		3	17	Wikipedia	NIST
Et2S	(CH₃CH₂)₂S		1		NIST
Et3B	(CH₃CH₂)₃B	1		Wikipedia	NIST
Et3OBF4	[Et₃O]⁺[BF₄]^–		1	Wikipedia	NIST
[Et3O]+	[(CH₃CH₂)₃O]⁺				NIST
Et3P	(CH₃CH₂)₃P	1	2		NIST
Eta-c	η_c	1
EtBr	CH₃CH₂Br	9	2	Wikipedia	NIST
EtCl	CH₃CH₂Cl	8	3	Wikipedia	NIST
EtCOOEt		1			NIST
EtF		2	1		NIST
Ethanal	CH₃CHO	13	20	Wikipedia	NIST
Ethanal enolate		1		Wikipedia	NIST
Ethanamide	CH₃CONH₂	4	1	Wikipedia	NIST
Ethane	CH₃CH₃	5	3	Wikipedia	NIST
Ethane 1,2-diol mono anion		2	1		NIST
Ethane thiol	CH₃CH₂SH	1	1	Wikipedia	NIST
Ethane, 1,2-epoxy		2	13	Wikipedia	NIST
Ethane, eclipsed		1			NIST
Ethane, staggered			1	Wikipedia	NIST
Ethane-1,2-diamine		2	4	Wikipedia	NIST
Ethane-1,2-diol		6	9	Wikipedia	NIST
Ethanedial		1	1	Wikipedia	NIST
Ethanedinitrile	N≡C–C≡N	1	1	Wikipedia	NIST
Ethanedioate ion	[C₂O₄]^2–	1	13	Wikipedia	NIST
Ethanedioic acid		5	2	Wikipedia	NIST
Ethanedioyl chloride				Wikipedia	NIST
Ethanehexafluoride	C₂F₆	1		Wikipedia	NIST
Ethanenitrile	CH₃CN	6	5	Wikipedia	NIST
Ethanide anion	[CH₃CH₂]^–		7	Wikipedia	NIST
Ethanoate ester (generic)	CH₃COOR	2	3
Ethanoate ion	[CH₃COO]^–	6	10	Wikipedia	NIST
Ethanoic acid	CH₃COOH	32	27	Wikipedia	NIST
Ethanoic acid, aqueous	CH₃COOH(aq)	3		Wikipedia	NIST
Ethanoic acid, sodium salt	CH₃COONa	4	2	Wikipedia	NIST
Ethanoic anhydride	(CH₃CO)₂CO	4	12	Wikipedia	NIST
Ethanol	CH₃CH₂OH	15	34	Wikipedia	NIST
Ethanolamine		1	3	Wikipedia	NIST
Ethanolamine, protonated		1			NIST
1,12-Ethanoperylene-13,14-dioic anhydride		1			NIST
Ethanoyl cation	[CH₃CO]⁺	1	13		NIST
Ethanoyl chloride	CH₃COCl		11	Wikipedia	NIST
2-Ethanoyloxybenzoic acid		2		Wikipedia	NIST
2-Ethanoyloxyethyl ethanoate		1	1		NIST
Ethene	H₂C=CH₂	21	39	Wikipedia	NIST
Ethene chloride	H₂C=CHCl	3	4	Wikipedia	NIST
Ethene/Bromonium ion complex					NIST
Ethenide anion			1	Wikipedia	NIST
Ethenium ion	[CH₃CH₂]⁺	3	10		NIST
Ethenone	H₂C=C=O	4	4	Wikipedia	NIST
Ethenyl anion			1	Wikipedia	NIST
Ethenyl bromonium ion					NIST
Ethenyl ethanoate		3	1	Wikipedia	NIST
Ethenylbenzene		2	4	Wikipedia	NIST
Ether (AS/A2 generic)				Wikipedia
Ether (generic)		2	2	Wikipedia
Ether, allyl phenyl			1		NIST
Ether, beta-chloro (generic)	R–O–CH₂CH₂Cl	1
Ether, diphenyl					NIST
Ether, ethyl isopropyl		1			NIST
Ether, beta-hydroxy (generic)		1
Ether, phenyl (generic)		3
Ethoxide ion	CH₃CH₂O^–	6	5		NIST
2-Ethoxyethanol		1		Wikipedia	NIST
(1-Ethoxy ethenyl) benzene		2			NIST
2-(2-Ethoxyethoxy)ethanol		1		Wikipedia	NIST
Ethyl 2-oxocyclopentanecarboxylate		1	1		NIST
Ethyl 3-oxobutanoate		2		Wikipedia	NIST
Ethyl acetate		5	4	Wikipedia	NIST
Ethyl acetoacetate		2		Wikipedia	NIST
Ethyl acetoacetate anion					NIST
Ethyl alcohol	CH₃CH₂OH	15	34	Wikipedia	NIST
Ethyl anion	[CH₃CH₂]^–		7	Wikipedia	NIST
Ethyl bromide	CH₃CH₂Br	9	2	Wikipedia	NIST
Ethyl carbocation	[CH₃CH₂]⁺	3	10		NIST
Ethyl chloride	CH₃CH₂Cl	8	3	Wikipedia	NIST
Ethyl cyanide	CH₃CH₂CN		1	Wikipedia	NIST
Ethyl ethanoate		5	4	Wikipedia	NIST
Ethyl ether		3	17	Wikipedia	NIST
Ethyl ethyl hexanedioate			1		NIST
Ethyl fluoride		2	1		NIST
Ethyl function (generic)	CH₃CH₂–R			Wikipedia
Ethyl hydrogensulfate		1	1		NIST
Ethyl hydrogensulphate		1	1		NIST
Ethyl isopropyl ether		1			NIST
Ethyl mercaptan	CH₃CH₂SH	1	1	Wikipedia	NIST
Ethyl nitranion		2	1	Wikipedia	NIST
Ethyl propanoate		1			NIST
Ethyl propionate		1			NIST
Ethyl radical	CH₃CH₂•	1	1		NIST
Ethyl thioanion	[CH₃CH₂S]^–		1		NIST
Ethyl thioether	(CH₃CH₂)₂S		1		NIST
5-Ethyl-2-methyl pyridine		2	1		NIST
5-Ethyl-2-picoline		2	1		NIST
5-Ethyl-5-(1-methylbutyl)-2-thiobarbiturate sodium salt				Wikipedia	NIST
N-Ethylacetamide		1			NIST
Ethylacetate anion			3	Wikipedia	NIST
Ethylacetate, protonated		1			NIST
Ethylacetylene	CH₃CH₂C≡CH			Wikipedia	NIST
Ethylamide anion		2	1	Wikipedia	NIST
Ethylamine	CH₃CH₂NH₂	5	7	Wikipedia	NIST
Ethylammonium ion	[CH₃CH₂NH₃]⁺	2			NIST
Ethylbenzene		4	1	Wikipedia	NIST
Ethylbenzene SeAr intermediate		1	1		NIST
Ethylcarbenium ion		1	1	Wikipedia	NIST
Ethylene	H₂C=CH₂	21	39	Wikipedia	NIST
Ethylene carbonate		1	1	Wikipedia	NIST
Ethylene chlorohydrin		1	2	Wikipedia	NIST
Ethylene cyanohydrin		1	3		NIST
Ethylene dibromide		1	4	Wikipedia	NIST
Ethylene dichloride	CH₂ClCH₂Cl	3	10		NIST
Ethylene glycol		6	9	Wikipedia	NIST
Ethylene glycol anion		2	1		NIST
Ethylene glycol diacetate		1	1		NIST
Ethylene glycol diacetate		1	1		NIST
Ethylene glycol dianion			1		NIST
Ethylene glycol ethyl ether		1		Wikipedia	NIST
Ethylene imine		2		Wikipedia	NIST
Ethylene oxide		2	13	Wikipedia	NIST
Ethylene oxide, O-alkylated (generic)			2
Ethylene sulfide		1			NIST
Ethylene, protonated	[CH₃CH₂]⁺	3	10		NIST
Ethyleneacetic acid		1			NIST
Ethylenediamine		2	4	Wikipedia	NIST
Ethylenediamine tetraacetic acid		1		Wikipedia	NIST
Ethylenediamine, mono-protonated		1			NIST
Ethylenediaminetetraacetic acid dianion		1	1		NIST
Ethylenediaminetetraacetic acid mono anion		1	1		NIST
Ethylenediaminetetraacetic acid tetraanion			5		NIST
Ethylenediaminetetraacetic acid trianion		1	1		NIST
Ethylethanamide		1			NIST
Ethyliodide	CH₃CH₂I	3	1	Wikipedia	NIST
Ethylium ion	[CH₃CH₂]⁺	3	10		NIST
Ethyloxonium ion		1	2		NIST
Ethylsulfonium ion	[CH₃CH₂SH₂]⁺	1			NIST
Ethyne	HC≡CH	9	25	Wikipedia	NIST
Ethyne dianion	^–C≡C^–		10		NIST
Ethynylbenzene		1		Wikipedia	NIST
EtI	CH₃CH₂I	3	1	Wikipedia	NIST
EtNH2	CH₃CH₂NH₂	5	7	Wikipedia	NIST
[EtNH]-		2	1	Wikipedia	NIST
(EtO)3P	(CH₃CH₂O)₃P		4	Wikipedia	NIST
EtOEt		3	17	Wikipedia	NIST
EtOH	CH₃CH₂OH	15	34	Wikipedia	NIST
EtOiPr		1			NIST
[EtO]-	CH₃CH₂O^–	6	5		NIST
EtSEt	(CH₃CH₂)₂S		1		NIST
EtSH	CH₃CH₂SH	1	1	Wikipedia	NIST
[EtS]-	[CH₃CH₂S]^–		1		NIST
[Et]-	[CH₃CH₂]^–		7	Wikipedia	NIST
Eu	Eu			Wikipedia	NIST
Eu2O3	Eu₂O₃				NIST
EuBr2	EuBr₂				NIST
EuBr3	EuBr₃				NIST
EuCl2					NIST
EuCl3	EuCl₃			Wikipedia	NIST
Euclase	BeAlSiO₄(OH)			Wikipedia
Eudialyte	Na₁₆Ca₆Zr₃(OH,Cl)₄ (Si₃O₉)(Si₉O₂₇)₂			Wikipedia
EuF2	EuF₂				NIST
EuF3	EuF₃				NIST
Eugenol		1			NIST
EuI2	EuI₂				NIST
EuI3	EuI₃				NIST
Europium	Eu			Wikipedia	NIST
Europium(II) bormide	EuBr₂				NIST
Europium(II) chloride					NIST
Europium(II) fluoride	EuF₂				NIST
Europium(II) iodide	EuI₂				NIST
Europium(III) bromide	EuBr₃				NIST
Europium(III) chloride	EuCl₃			Wikipedia	NIST
Europium(III) fluoride	EuF₃				NIST
Europium(III) iodide	EuI₃				NIST
Europium(III) oxide	Eu₂O₃				NIST
Exotic hydrogen		1		Wikipedia
Explosive (generic)	Explosive			Wikipedia
F (phenylalanine)		1	1	Wikipedia	NIST
F•	F•			Wikipedia	NIST
F+	F⁺				NIST
F-	F^–	9	31	Wikipedia	NIST
F2	F₂	3	57	Wikipedia	NIST
F2O	OF₂	1		Wikipedia	NIST
F2O2	O₂F₂	1		Wikipedia	NIST
F2SO	SOF₂	1	1	Wikipedia	NIST
Fatty Acid (AS/A2 generic)				Wikipedia
Fatty acid (generic)	Fatty Acid			Wikipedia
Fatty acid alkali metal salt	Soap	1		Wikipedia
Fe	Fe	9	5	Wikipedia	NIST
[Fe(bipy)3]2+		2			NIST
[Fe(C2O4)3]3-	[Fe(C₂O₄)₃]^3–	2			NIST
Fe(CO)5	Fe(CO)₅	1	2	Wikipedia	NIST
Fe(H2O)3(OH)3	Fe(H₂O)₃(OH)₃ Fe(OH)₃	5	1		NIST
Fe(H2O)4(OH)2	Fe(H₂O)₄(OH)₂ Fe(OH)₂	4	1		NIST
[Fe(H2O)5(OH)]2+	[Co(NH₃)₆]²⁺	1			NIST
[Fe(H2O)5(SCN)]2+	[Fe(H₂O)₅(SCN)]²⁺	1			NIST
[Fe(H2O)6]2+	[Fe(H₂O)₆]²⁺	3	10		NIST
[Fe(H2O)6]3+	[Fe(H₂O)₆]³⁺	6	9		NIST
Fe(NO3)3.9H2O	Fe(NO₃)₃ .9H₂O	1		Wikipedia	NIST
Fe(OH)2	Fe(OH)₂	1		Wikipedia	NIST
Fe(OH)3	Fe(OH)₃	3		Wikipedia	NIST
Fe2(CO)9	Fe₂(CO)₉	1		Wikipedia	NIST
Fe2(SO4)3.5H2O	Fe₂(SO₄)₃ .5H₂O		2	Wikipedia	NIST
Fe2+	Fe²⁺	4	29		NIST
Fe2O3	Fe₂O₃	4	5	Wikipedia	NIST
Fe3+	Fe³⁺	9	11		NIST
FeBr2	FeBr₂			Wikipedia	NIST
FeBr3	FeBr₃	1	1	Wikipedia	NIST
[FeBr4]-	[FeBr₄]^–	2	1		NIST
FeC2O4	FeC₂O₄	1	1		NIST
FeCl2	FeCl₂	2	1	Wikipedia	NIST
FeCl3	FeCl₃	2	9	Wikipedia	NIST
FeCO3	FeCO₃	2		Wikipedia	NIST
FeCp2		1		Wikipedia	NIST
FeF2	FeF₂			Wikipedia	NIST
FeF3	FeF₃			Wikipedia	NIST
[FeH6]4-	[FeH₆]^4–	1	1		NIST
Fehling's solution	Fehling's Solution	1	5	Wikipedia	NIST
FeI2	FeI₂				NIST
FeO	FeO	3		Wikipedia	NIST
FeO.Fe2O3	FeO.Fe₂O₃	1	2	Wikipedia	NIST
Ferberite	FeWO₄			Wikipedia
Fermion	Fermion			Wikipedia
Fermionic hadron	Fermionic Hadron			Wikipedia
Fermium	Fm			Wikipedia	NIST
Ferric bromide	FeBr₃	1	1	Wikipedia	NIST
Ferric chloride	FeCl₃	2	9	Wikipedia	NIST
Ferric hydroxide	Fe(OH)₃	3		Wikipedia	NIST
Ferric ion	Fe³⁺	9	11		NIST
Ferric oxide	Fe₂O₃	4	5	Wikipedia	NIST
Ferro-aluminum	Ferro- Aluminum				NIST
Ferrocene		1		Wikipedia	NIST
Ferrotungsten	Fe-W				NIST
Ferrous carbonate	FeCO₃	2		Wikipedia	NIST
Ferrous hydroxide	Fe(OH)₂	1		Wikipedia	NIST
Ferrous ion	Fe²⁺	4	29		NIST
Ferrous oxalate	FeC₂O₄	1	1		NIST
Ferrous oxide	FeO	3		Wikipedia	NIST
Ferrous sulfide	FeS	5	1	Wikipedia	NIST
Ferrous tungstate	FeWO₄	1			NIST
Ferrum	Fe	9	5	Wikipedia	NIST
FeS	FeS	5	1	Wikipedia	NIST
FeS2.FeAs2	FeS₂.FeAs₂		1		NIST
FeSO4.7H2O	FeSO₄.7H₂O	1	2		NIST
FeSO4Cl	FeSO₄Cl		1		NIST
FeTiH0.95	FeTiH_0.95			Wikipedia	NIST
FeWO4	FeWO₄	1			NIST
[FHF]-	[FHF]^–	3	2	Wikipedia	NIST
FI	I–F	1	1		NIST
Fiber, boron	Boron Fiber	1			NIST
Fiber, carbon	Carbon Fiber	1		Wikipedia	NIST
Fiber, ceramic	Ceramic Fiber
Fiber, rock	Rock Fiber			Wikipedia
Fiber, silicon carbide	SiC Fiber	1		Wikipedia	NIST
Fiber, slag	Slag Fiber
Fiberglass	Glass Fiber			Wikipedia
Fibrolite	Al₂SiO₅
Fl	Fl			Wikipedia	NIST
Flerovium	Fl			Wikipedia	NIST
Flowers of antimony	Sb₂O₃	2	2	Wikipedia	NIST
Flowers of sulphur	S₈	3	1	Wikipedia	NIST
Flowers of sulphur	S _native		1	Wikipedia
Fluoboric acid	H⁺ [BF₄]^–	2		Wikipedia	NIST
Fluorane	HF	30	39	Wikipedia	NIST
Fluorene		1		Wikipedia	NIST
Fluorene anion			1	Wikipedia	NIST
Fluoride, organic (generic)	R–F	2	1	Wikipedia
Fluoride ion	F^–	9	31	Wikipedia	NIST
Fluorine	F₂	3	57	Wikipedia	NIST
Fluorine cation	F⁺				NIST
Fluorine dioxide	O₂F₂	1		Wikipedia	NIST
Fluorine family (generic)	Group VIIa/17 Halogens			Wikipedia
Fluorine hydride	HF	30	39	Wikipedia	NIST
Fluorine monoxide	OF₂	1		Wikipedia	NIST
Fluorine radical	F•			Wikipedia	NIST
Fluoristan	SnF₂			Wikipedia	NIST
Fluorite	CaF₂			Wikipedia
2-Fluoro-2-methylpropane		2			NIST
Fluoroantimonic acid	ROH	2		Wikipedia	NIST
Fluorobenzene			2	Wikipedia	NIST
Fluoroborate ion	[BF₄]^–	7	9	Wikipedia	NIST
Fluoroboric acid	HBF₄(aq)	2	1	Wikipedia	NIST
Fluoroethane		2	1		NIST
Fluoroethene		2	1	Wikipedia	NIST
Fluoromethane	CH₃F	1		Wikipedia	NIST
Fluoronium ion	[FH₂]⁺	2			NIST
Fluoronium ion, alkyl (generic)	[R–FH]⁺	2
2-Fluoropropane		2			NIST
Fluorosulfonate ion	[FSO₃]^–		1		NIST
Fluorosulfonic acid	HSO₃F	2	2	Wikipedia	NIST
Fluorosulfonic acid.antimony(V) pentafluoride	H⁺[SbF₆]^– .SO₃			Wikipedia	NIST
Fluorspar	CaF₂			Wikipedia
Fm	Fm			Wikipedia	NIST
FMO, Alkene HOMO (generic)
FMO, Alkene LUMO (generic)
FMO, Allyl (generic)
FMO, Diene HOMO (generic)
FMO, Diene LUMO (generic)
FMO, Pentadieny FMO (generic)
FMO, SP3, SP2 and SP (generic)
FOH	HOF	2	1		NIST
Fool's gold	FeS₂ ^pyrite		2	Wikipedia
Formaldehyde	HCHO	6	25	Wikipedia	NIST
Formaldehyde solution		1	1	Wikipedia	NIST
Formaldehyde, alkylated (generic)			2
Formaldehyde, protonated		1			NIST
Formalin		1	1	Wikipedia	NIST
Formamide	HCONH₂	2	2	Wikipedia	NIST
Formate ester (generic)	HCOOR	1
Formate ester, alkylated (generic)			2
Formate ion	[HCOO]^–		1	Wikipedia	NIST
Formic acid	HCOOH	7	2	Wikipedia	NIST
Formyl cation		1	2		NIST
Formyl chloride		1			NIST
Formylformic acid		1		Wikipedia	NIST
Formylmethanoic acid		1		Wikipedia	NIST
Fossil flour	Kieselguhr		1	Wikipedia
[FO]-	[FO]^–		1		NIST
Fr	Fr			Wikipedia	NIST
Francium	Fr			Wikipedia	NIST
Francium 221	²²¹Fr	1	1	Wikipedia	NIST
Francium 223	²²³Fr	1	1	Wikipedia	NIST
Franklinite	(Zn,Mn²⁺,Fe²⁺) (Fe³⁺,Mn³⁺)₂O₄		1	Wikipedia
Fremy's salt	(KSO₃)₂NO		1	Wikipedia	NIST
Freon 10	CCl₄	11	5	Wikipedia	NIST
Freon-11	CCl₃F	3	1	Wikipedia	NIST
Freon-12	CCl₂F₂	4	1	Wikipedia	NIST
Freon-22	HCClF₂	1	1	Wikipedia	NIST
D-Fructose		1	1	Wikipedia	NIST
Fruit sugar		1	1	Wikipedia	NIST
[FSO3]-	[FSO₃]^–		1		NIST
Fuel oil	Fuel oil	1	2	Wikipedia	NIST
Fuel oil	Gas Oil	1	8	Wikipedia	NIST
Fulminate (generic)	Râ€“Oâ€“N=C			Wikipedia
Fulminate ion	[O=N=C]^–		2	Wikipedia	NIST
Fulminic acid	H–O=N=C	1		Wikipedia	NIST
Fumarase	Fumarase		1	Wikipedia
Fumarate (hydrogen) ion		1	1		NIST
Fumarate dianion			1		NIST
Fumarate hydratase	Fumarase		1	Wikipedia
Fumaric acid		3	2	Wikipedia	NIST
Fuming nitric acid	HNO₃ ^fuming	2	3	Wikipedia	NIST
Fuming spirit of Libavius	SnCl₄		3	Wikipedia	NIST
Fundamental particle	Elementary Particle			Wikipedia
Furan			1	Wikipedia	NIST
Fused quartz	Quartz Glass SiO₂			Wikipedia	NIST
Fused sodium borate	Na₂B₄O₇	1	1	Wikipedia	NIST
G (glycine)		1	5	Wikipedia	NIST
G (guanine)	Guanine G		1	Wikipedia	NIST
Ga	Ga	5	7	Wikipedia	NIST
GA				Wikipedia	NIST
Ga+	Ga⁺	1			NIST
Ga2O3	Ga₂O₃	1			NIST
Ga3+	Ga³⁺	1	2		NIST
GaBr3	GaBr₃	1		Wikipedia	NIST
GaCl3	GaCl₃	1		Wikipedia	NIST
Gadolinia	Gd₂O₃			Wikipedia	NIST
Gadolinium	Gd			Wikipedia	NIST
Gadolinium bromide	GdBr₃.6H₂O				NIST
Gadolinium chloride	GdCl₃			Wikipedia	NIST
Gadolinium fluoride	GdF₃				NIST
Gadolinium iodide	GdI₃				NIST
Gadolinium(III) oxide	Gd₂O₃			Wikipedia	NIST
GaF3	GaF₃	1			NIST
GaH3	GaH₃	1	1		NIST
[GaH4]-	[GaH₄]^–	1			NIST
GaI3	GaI₃	1		Wikipedia	NIST
D-Galactose		1		Wikipedia	NIST
Galena	ZnS		1	Wikipedia
Gallium	Ga	5	7	Wikipedia	NIST
Gallium bromide	GaBr₃	1		Wikipedia	NIST
Gallium chloride	GaCl₃	1		Wikipedia	NIST
Gallium fluoride	GaF₃	1			NIST
Gallium hydride	GaH₃	1	1		NIST
Gallium iodide	GaI₃	1		Wikipedia	NIST
Gallium oxide	Ga₂O₃	1			NIST
Gallium(I) ion	Ga⁺	1			NIST
Gallium(III) ion	Ga³⁺	1	2		NIST
Gamma ray	γ	82	2	Wikipedia	NIST
Garnet group	X₃Y₂Si₃O₁₂ X²⁺ = Ca,Mn,Mg,Fe Y³⁺ = Al,Cr,Fe			Wikipedia
Gas oil	Gas Oil	1	8	Wikipedia	NIST
Gas, coal	CO + H₂	1		Wikipedia	NIST
Gas, crack	CO + 3H₂ ^{Crack Gas}	1		Wikipedia	NIST
Gas, laughing	N₂O	4	2	Wikipedia	NIST
Gas, liquefied petroleum	LPG	1	1	Wikipedia	NIST
Gas, marsh	CH₄	14	32	Wikipedia	NIST
Gas, methanol synthesis	CO + 2H₂		1		NIST
Gas, mustard	S(CH₂CH₂Cl)₂	1		Wikipedia	NIST
Gas, natural	Natural Gas	1	5	Wikipedia	NIST
Gas, oxo	CO + H₂ ^{Oxo Gas}		2		NIST
Gas, producer	CO + 2N₂ ^{producer gas}	1		Wikipedia	NIST
Gas, refinary	Natural Gas	1	5	Wikipedia	NIST
Gas, synthesis	CO/H₂ ^Syngas	6	6	Wikipedia	NIST
Gas, town	CO + H₂	1		Wikipedia	NIST
Gas, water	CO + H₂ ^{water gas}	1		Wikipedia	NIST
Gasoline	Gasoline	4		Wikipedia	NIST
GB				Wikipedia	NIST
Gd	Gd			Wikipedia	NIST
GD				Wikipedia	NIST
Gd2O3	Gd₂O₃			Wikipedia	NIST
GdBr3	GdBr₃.6H₂O				NIST
GdCl3	GdCl₃			Wikipedia	NIST
GdF3	GdF₃				NIST
GdI3	GdI₃				NIST
GDP	GDP		1	Wikipedia	NIST
Ge	Ge	4	1	Wikipedia	NIST
Ge2+	Ga²⁺		1		NIST
GeBr2	GeBr₂				NIST
GeBr4	GeBr₄				NIST
GeCl2	GeCl₂				NIST
GeCl4	GeCl₄	2	3	Wikipedia	NIST
[GeCl6]2-	[GeCl₆]^2–	1			NIST
GeF2	GeF₂				NIST
GeF4	GeF₄		1		NIST
[GeF6]2-	[GeF₆]^2–	1			NIST
[GeH3]-	[H₃Ge]^–		1	Wikipedia	NIST
GeH4	GeH₄	3		Wikipedia	NIST
GeI2	GeI₂				NIST
GeI4	GeI₄				NIST
Gelatine dynamite	GELATINE DYNAMITE	1		Wikipedia
Gelignite	GELATINE DYNAMITE	1		Wikipedia
gem-Dichloride (generic)		1	1
Generic urea or carbonate (generic)
GeO2	GeO₂	1	3	Wikipedia	NIST
German silver	German Silver			Wikipedia	NIST
Germanate (dihydrogen) ion	[H₂GeO₄]^2–		1		NIST
Germanate (trihydrogen) ion	[H₃GeO₄]^–	1	1		NIST
Germane	GeH₄	3		Wikipedia	NIST
Germane (generic)	R₃GeH	1
Germane anion (generic)	[R₃Ge]^–		1
Germane hydride anion	[H₃Ge]^–		1	Wikipedia	NIST
Germanic acid	H₄GeO₄	1			NIST
Germanite	Cu₂₆Fe₄Ge₄S₃₂		2	Wikipedia
Germanium	Ge	4	1	Wikipedia	NIST
Germanium dibromide	GeBr₂				NIST
Germanium dichloride	GeCl₂				NIST
Germanium difluoride	GeF₂				NIST
Germanium diiodide	GeI₂				NIST
Germanium dioxide	GeO₂	1	3	Wikipedia	NIST
Germanium hexachloride dianion	[GeCl₆]^2–	1			NIST
Germanium hexafluoride dianion	[GeF₆]^2–	1			NIST
Germanium hydride	GeH₄	3		Wikipedia	NIST
Germanium tetrabromide	GeBr₄				NIST
Germanium tetrachloride	GeCl₄	2	3	Wikipedia	NIST
Germanium tetrafluoride	GeF₄		1		NIST
Germanium tetraiodide	GeI₄				NIST
Germanium(II) bromide	GeBr₂				NIST
Germanium(II) chloride	GeCl₂				NIST
Germanium(II) fluoride	GeF₂				NIST
Germanium(II) iodide	GeI₂				NIST
Germanium(II) ion	Ga²⁺		1		NIST
Germanium(IV) bromide	GeBr₄				NIST
Germanium (IV) chloride	GeCl₄	2	3	Wikipedia	NIST
Germanium(IV) fluoride	GeF₄		1		NIST
Germanium(IV) iodide	GeI₄				NIST
Glacial acetic acid	CH₃COOH	32	27	Wikipedia	NIST
Glass (generic)	Glass			Wikipedia
Glass fiber	Glass Fiber			Wikipedia
Glass wool	Glass Fiber			Wikipedia
Glass, lead	Lead Crystal Glass	1		Wikipedia
Glass, Pyrex®	Pyrex®	1		Wikipedia
Glass, quartz	Quartz Glass SiO₂			Wikipedia	NIST
Glass, soda-lime	Soda-Lime Glass	1		Wikipedia
Glass-reinforced plastic	GRP			Wikipedia	NIST
Glauber's salt	Na₂SO₄ .10H₂O			Wikipedia	NIST
Glaubertite	Na₂SO₄ .CaSO₄
Glaucophane	□Na₂(Mg₃Al₂) Si₈O2₂(OH)₂₂			Wikipedia
Gln		1	1	Wikipedia	NIST
Glu		1	1	Wikipedia	NIST
Glucinium	Be	6	15	Wikipedia	NIST
Glucitol		1		Wikipedia	NIST
D-(+) Glucose		6	5	Wikipedia	NIST
Glutamic acid		1	1	Wikipedia	NIST
Glutamic acid, deprotonated		1	1	Wikipedia	NIST
Glutamic acid, doubly-deprotonated			1	Wikipedia	NIST
Glutamic acid, protonated		1		Wikipedia	NIST
Glutamine		1	1	Wikipedia	NIST
Glutamine, deprotonated			1	Wikipedia	NIST
Glutamine, protonated		1			NIST
Gly		1	5	Wikipedia	NIST
Gly-ala	Ala-Gly	1			NIST
Gly-gly	Gly-Gly	1			NIST
Glycerine		10	2	Wikipedia	NIST
D-Glycerladehyde			1		NIST
Glycerol		10	2	Wikipedia	NIST
Glyceryl trinitrite		1	2	Wikipedia	NIST
Glycine		1	5	Wikipedia	NIST
Glycine methyl ester		1			NIST
Glycine Zwitterion				Wikipedia	NIST
Glycine, deprotonated		1	1	Wikipedia	NIST
Glycine, protonated		1		Wikipedia	NIST
Glycl-L-alanine	Ala-Gly	1			NIST
Glycoate ion			1		NIST
Glycogen	Starch		3	Wikipedia
Glycol ethylene ether		2	1	Wikipedia	NIST
Glycolic acid		2		Wikipedia	NIST
Glycylglycine	Gly-Gly	1			NIST
Glyoxal		1	1	Wikipedia	NIST
Glyoxaline		1	1	Wikipedia	NIST
Glyoxylic acid		1		Wikipedia	NIST
GMP	GMP			Wikipedia	NIST
cGMP	cGTP			Wikipedia	NIST
Goethite	FeO(OH)			Wikipedia
Gold	Au	1	2	Wikipedia	NIST
Gold, 8 carat	Gold 8 Carat			Wikipedia	NIST
Gold, 14 carat	Gold 14 Carat			Wikipedia	NIST
Gold, 16 carat	Gold 16 Carat			Wikipedia	NIST
Gold, blue	Blue Gold				NIST
Gold, Cooper's	Cooper's Gold				NIST
Gold, dark red	Dark Red Gold				NIST
Gold, fool's	FeS₂ ^pyrite		2	Wikipedia
Gold, gray	Gray Gold				NIST
Gold, native	Au _native			Wikipedia
Gold, palladium	Palladium Gold				NIST
Gold, palladium white	Palladium White Gold			Wikipedia	NIST
Gold, purple	Purple Gold				NIST
Gold, U.S. coinage	Coinage Gold				NIST
Gold, white	White Gold			Wikipedia	NIST
Gold, white platinum	White Platinum Gold				NIST
Gold(I) bromide	AuBr				NIST
Gold(I) chloride	AuCl			Wikipedia	NIST
Gold(I) iodide	AuI				NIST
Gold(I) Ion	Au⁺	1	2		NIST
Gold(I) oxide	Au₂O				NIST
Gold(III) bromide	AuBr₃			Wikipedia	NIST
Gold(III) chloride	AuCl₃			Wikipedia	NIST
Gold(III) fluoride	AuF₃			Wikipedia	NIST
Gold(III) iodide	AuI₃				NIST
Gold(III) Ion	Au³⁺		1		NIST
Gold(III) oxide	Au₂O₃			Wikipedia	NIST
Gomberg dimer		1		Wikipedia	NIST
Graphite	C ^graphite		3	Wikipedia
Gray gold	Gray Gold				NIST
Grease	Wax	1		Wikipedia	NIST
Greenockite	CdS			Wikipedia
Grignard reagent (AS/A2 generic)				Wikipedia
Grignard reagent (generic)	RMgX	1	12	Wikipedia
Grignard reagent, alkyl magnesium bromide (generic)	RMgBr	2	1	Wikipedia
Grignard reagent, alkyl magnesium chloride (generic)	RMgCl	2	1	Wikipedia
Grignard Reagent, MeMgI	CH₃MgI	2	3	Wikipedia	NIST
Group 1 element (generic)	Group Ia/1 Alkali Metals			Wikipedia
Group II element (AS/A2 generic)
Group 2 element (generic)	Group IIa/2 Alkaline Earth Metals			Wikipedia
Group 3 element (generic)	Group IIIb/3 Scandium Family			Wikipedia
Group 4 element (generic)	Group IVb/4 Titanium Family			Wikipedia
Group 5 element (generic)	Group Vb/5 Vanadium Family			Wikipedia
Group 6 element (generic)	Group VIb/6 Chronium Family			Wikipedia
Group 7 element (generic)	Grou VIIb/7 Manganese Family			Wikipedia
Group 8 element (generic)	Group VIIIb/8 Iron Family			Wikipedia
Group 9 element (generic)	Group VIIIb/9 Cobalt Family			Wikipedia
Group 10 element (generic)	Group VIIIb/10 Nickel Family			Wikipedia
Group 11 element (generic)	Group Ib/11 Copper Group			Wikipedia
Group 12 element (generic)	Group IIb/12 Zinc Family			Wikipedia
Group 13 element (generic)	Group IIIa/13 Boron Group
Group 14 element (generic)	Group IVa/14 Carbon Family			Wikipedia
Group 15 element (generic)	Group Va/15 Pnictogens			Wikipedia
Group 16 element (generic)	Group VIa/16 Chalcogens			Wikipedia
Group 17 element (generic)	Group VIIa/17 Halogens			Wikipedia
Group 18 element (generic)	Group VIIIa/18 Noble Gases			Wikipedia
Group VII element (AS/A2 generic)				Wikipedia
Group Ia element (generic)	Group Ia/1 Alkali Metals			Wikipedia
Group IIa element (generic)	Group IIa/2 Alkaline Earth Metals			Wikipedia
Group IIIa element (generic)	Group IIIa/13 Boron Group
Group Iva element (generic)	Group IVa/14 Carbon Family			Wikipedia
Group Va element (generic)	Group Va/15 Pnictogens			Wikipedia
Group Via element (generic)	Group VIa/16 Chalcogens			Wikipedia
Group VIIa element (generic)	Group VIIa/17 Halogens			Wikipedia
Group VIIIa element (generic)	Group VIIIa/18 Noble Gases			Wikipedia
Group Ib element (generic)	Group Ib/11 Copper Group			Wikipedia
Group IIIb element (generic)	Group IIIb/3 Scandium Family			Wikipedia
Group Vb element (generic)	Group Vb/5 Vanadium Family			Wikipedia
GRP	GRP			Wikipedia	NIST
GTP	GTP	1		Wikipedia	NIST
Guaiacol allyl ether			1		NIST
Guanidine			2	Wikipedia	NIST
Guanidine, 1,1,3,3-tetramethyl					NIST
Guanidine, protonated		1			NIST
Guanine	Guanine G		1	Wikipedia	NIST
Guanine diphosphate	GDP		1	Wikipedia	NIST
Guanine monophosphate	GMP			Wikipedia	NIST
Guanine triphosphate	GTP	1		Wikipedia	NIST
Guanosine 3,5-cyclic phosphate	cGTP			Wikipedia	NIST
Guest (generic)			1
Guest-host complex		1
D-Gulose		1		Wikipedia	NIST
Gun cotton	Nitrocellulose	1	1	Wikipedia	NIST
Gunmetal	Gunmetal			Wikipedia	NIST
Gunpowder	75% KNO₃, 15% S, 10% C ^gunpowder	1	1	Wikipedia	NIST
Gutta-percha		1		Wikipedia
Gypsum	CaSO₄ .2H₂O	2	1	Wikipedia	NIST
Gypsum	CaSO₄.2H₂O			Wikipedia
[H]	[H]		32		NIST
H (histidine)		1	1	Wikipedia	NIST
H•	H•	20	10	Wikipedia	NIST
Hübnerite	MnWO₄
H+	H⁺	77	547	Wikipedia	NIST
H+/H2O	H⁺(aq)		15
H^-	H^–		36	Wikipedia	NIST
H₂	H₂	139	158	Wikipedia	NIST
[H2AsO4]-	[H₂AsO₄]^–	1	1		NIST
[H₂As]^-	[H₂As]^–		1		NIST
[H2Br]+	[BrH₂]⁺	1			NIST
H2C=C=O	H₂C=C=O	4	4	Wikipedia	NIST
H2CCO	H₂C=C=O	4	4	Wikipedia	NIST
[H2Cl]+	[ClH₂]⁺	1			NIST
H2CO	HCHO	6	25	Wikipedia	NIST
H2CO3	H₂CO₃	1		Wikipedia	NIST
H2CrO4	H₂CrO₄	2		Wikipedia	NIST
[H2F]+	[FH₂]⁺	2			NIST
[H2GeO4]2-	[H₂GeO₄]^2–		1		NIST
H2N•	H₂N•				NIST
H2N2	HN=NH			Wikipedia	NIST
H2NCH2CH2CH2CH2NH2		2		Wikipedia	NIST
H2NCl	H₂NCl	1	3	Wikipedia	NIST
H2NOH.HCl		1		Wikipedia	NIST
H2NSO2NH2	H₂NSO₂NH₂		1	Wikipedia	NIST
[H2N]-	[H₂N]^–	2	18		NIST
H2O	H₂O	529	531	Wikipedia	NIST
H2O(g)	H₂O(g)	3	1	Wikipedia	NIST
H2O2	HOOH	12	30	Wikipedia	NIST
H2O3S	H₂SO₃	4	2	Wikipedia	NIST
H2O4S	H₂SO₄	25	74	Wikipedia	NIST
[H2PO2]-	[H₂PO₂]^–	2	1		NIST
[H2PO3]-	[H₃PO₄]^–	1	1		NIST
[H2PO4]-	[H₂PO₄]^–	1	3		NIST
H2PPH2	P₂H₆			Wikipedia	NIST
[H2P]-	[H₂P]^–		1		NIST
H2S	H₂S	10	22	Wikipedia	NIST
H2S(aq)	H₂S(aq)	1		Wikipedia	NIST
H2S2	HSSH	1			NIST
H2S2O3		1	1	Wikipedia	NIST
H2S2O4		1			NIST
H2S2O5		1			NIST
H2S2O6		1			NIST
H2S2O7	H₂S₂O₇	1	6	Wikipedia	NIST
H2S2O8		2	1		NIST
H2S4O6		1			NIST
H2Se	H₂Se	3	1	Wikipedia	NIST
H2SeO3	H₂SeO₃	2	1	Wikipedia	NIST
H2SeO4		1		Wikipedia	NIST
[H2Se]-	[H₂Sb]^–		1		NIST
H2SiF6(aq)	H₂SiF₆(aq)	2	1	Wikipedia	NIST
H2SO3	H₂SO₃	4	2	Wikipedia	NIST
H2SO4	H₂SO₄	25	74	Wikipedia	NIST
H2SO4(aq)	H₂SO₄(aq)	3	11	Wikipedia	NIST
H2SO5		2	2	Wikipedia	NIST
H2Te	H₂Te	1	2	Wikipedia	NIST
H2TeO3	H₂TeO₃	1		Wikipedia	NIST
[H2]+	[H₂]^+•	2	1		NIST
H3Al	AlH₃		2	Wikipedia	NIST
H3AsO4	H₃AsO₄	1			NIST
H3B	BH₃		2	Wikipedia	NIST
H3BO3	H₃BO₃	10	9	Wikipedia	NIST
[H3GeO4]-	[H₃GeO₄]^–	1	1		NIST
[H3IO6]2-	[H₃IO₆]^2–		1		NIST
[H3N2]-	[NH₂–NH]^–		1		NIST
H3P	PH₃	6	2	Wikipedia	NIST
H3PO2	H₃PO₂	2	2	Wikipedia	NIST
H3PO3	H₃PO₃	8	1	Wikipedia	NIST
H3PO4	H₃PO₄	8	7	Wikipedia	NIST
H3Sb	H₃Sb	7	1	Wikipedia	NIST
[H3Si]-	[H₃Si]^–		1		NIST
[H3]+	[H₃]⁺	2	3	Wikipedia	NIST
H4Ge	GeH₄	3		Wikipedia	NIST
[H4IO6]-	[H₄IO₆]^–	1	1		NIST
H4P2O5					NIST
H4P2O6			1		NIST
H4P2O7		2		Wikipedia	NIST
[H4P]+	[PH₄]⁺	1			NIST
H4Si	SiH₄	5		Wikipedia	NIST
Hadron, bosonic	Bosonic Hadron			Wikipedia
Hadron, fermionic	Fermionic Hadron			Wikipedia
Haem		1		Wikipedia	NIST
Haemoglobin				Wikipedia
Hafnia	HfO₂			Wikipedia	NIST
Hafnium	Hf			Wikipedia	NIST
Hafnium(III) bromide	HfBr₃				NIST
Hafnium(III) chloride	HfCl₃				NIST
Hafnium(III) iodide	HfI₃				NIST
Hafnium(IV) bromide	HfBr₄				NIST
Hafnium(IV) chloride	HfCl₄			Wikipedia	NIST
Hafnium(IV) fluoride	HfF₄				NIST
Hafnium(IV) iodide	HfI₄				NIST
Hafnium(IV) oxide	HfO₂			Wikipedia	NIST
Halite	NaCl halite			Wikipedia
Hallucinogen (generic)	Hallucinogen			Wikipedia
alpha-Halo aldehyde or ketone (generic)
Haloalkane (AS/A2 generic)			2	Wikipedia
Halogen (AS/A2 generic)				Wikipedia
Halogen (generic)	Group VIIa/17 Halogens			Wikipedia
Halogen anion (AS/A2 generic)		1		Wikipedia
Halon	CCl₂F₂	4	1	Wikipedia	NIST
Halon 104	CCl₄	11	5	Wikipedia	NIST
Hard Lewis acid (generic)				Wikipedia
Hard Lewis base (generic)				Wikipedia
Hard margarine	Hard Margarine	1		Wikipedia	NIST
HArF	H–Ar–F	1		Wikipedia	NIST
Harmotome	(Ba_0.5,Ca_0.5,Na,K)₅ Al₅,Si₁₁O₃₂. 12H₂O			Wikipedia
Hartshorn	(NH₄)₂CO₃		1	Wikipedia	NIST
[HAsO4]2-	[HAsO₄]^2–	1	1		NIST
Hassium	Hs			Wikipedia	NIST
Hausmannite	Mn₃O₄		1		NIST
Haüyne	Na₃Ca(Si₃Al₃) O₁₂(SO₄)			Wikipedia
HBF4	HBF₄(aq)	2	1	Wikipedia	NIST
HBF4	H⁺ [BF₄]^–	2		Wikipedia	NIST
HBO2	HBO₂	2	1	Wikipedia	NIST
HBr	HBr	22	20	Wikipedia	NIST
HBr/CH3COOH	HBr in CH₃COOH ^{30% W/W}	1			NIST
HBrO	HOBr	4	1	Wikipedia	NIST
HBrO3	HBrO₃	2		Wikipedia	NIST
HCCH	HC≡CH	9	25	Wikipedia	NIST
HCClF2	HCClF₂	1	1	Wikipedia	NIST
[HCC]-	HC≡C^–	1	2	Wikipedia	NIST
HCHO	HCHO	6	25	Wikipedia	NIST
HCl	HCl	107	50	Wikipedia	NIST
HCl + NO3	Aqua Regia	1	2	Wikipedia	NIST
HCl(aq)	HCl(aq)	2	13	Wikipedia	NIST
HCl(conc)	HCl(conc)	2	9	Wikipedia	NIST
HClO	HClO	6	4	Wikipedia	NIST
HClO2	HClO₂	2		Wikipedia	NIST
HClO3	HClO₃	2	1	Wikipedia	NIST
HClO4	HClO₄	4	1	Wikipedia	NIST
HCN	HCN	5	18	Wikipedia	NIST
HCo(CO)3	HCo(CO)₃	2	1		NIST
HCo(CO)4	HCo(CO)₄	1	1		NIST
[HCO3]-	[HCO₃]^–	4	5		NIST
HCOCl		1			NIST
HCONH2	HCONH₂	2	2	Wikipedia	NIST
HCOOCH3		2	5	Wikipedia	NIST
HCOOH	HCOOH	7	2	Wikipedia	NIST
HCOONa	HCOONa	5	2	Wikipedia	NIST
HCOOR	HCOOR	1
[HCOO]-	[HCOO]^–		1	Wikipedia	NIST
[HCrO4]-	[HCrO₄]^–				NIST
HD	HD	1			NIST
He	He	2	1	Wikipedia	NIST
Heavy distillate	Fuel oil	1	2	Wikipedia	NIST
Heavy hydrogen	D₂	1	1	Wikipedia	NIST
Heavy metal Lewis acid (generic)			4	Wikipedia
Heavy water	D₂		1	Wikipedia	NIST
Helium	He	2	1	Wikipedia	NIST
Helium 3	³H	1	1	Wikipedia	NIST
Helium 4	α	44	6	Wikipedia	NIST
Helium family (generic)	Group VIIIa/18 Noble Gases			Wikipedia
Helonium ion	[HHe]⁺	1			NIST
Hematite	Fe₂O₃		1	Wikipedia
Hemiacetal (generic)		1		Wikipedia
Hemiketal (generic)		1		Wikipedia
Hemimorphite	Zn₃Si₂O₇(OH)₂ .H₃O			Wikipedia
Heneicosane			1	Wikipedia	NIST
Hepta-5-ene-2,3-dicarboxylic anhydride		1			NIST
Heptane			1		NIST
Heptane, bicyclio[4.1.0]		1			NIST
Heroin		1		Wikipedia	NIST
Heteroauxin				Wikipedia	NIST
5 Heterocycle (generic)				Wikipedia
6 Heterocycle (generic)				Wikipedia
Heterocycle, polycyclic (generic)				Wikipedia
Heterogeneous mixture (generic)	Heterogeneous Mixture			Wikipedia
Heulandite	Ca,Na)_2-3Al₃ (Al,Si)₂Si₁₃O₃₆ .12H₂O			Wikipedia
Hexaamminochromium(III) ion	[Cr(NH₃)₆]²⁺	2			NIST
Hexaamminocobalt(II) ion	[Co(NH₃)₆]²⁺	1	3		NIST
Hexaamminocobalt(III) ion	[Co(NH₃)₆]³⁺	2			NIST
Hexaaquaaluminium complex ion	[Al(H₂O)₆]³⁺	2	6		NIST
Hexaaquachromium(II) ion	[Cr(H₂O)₆]²⁺	3			NIST
Hexaaquachromium(III) ion	[Cr(H₂O)₆]²⁺	3	9		NIST
Hexaaquacobolt(II) ion	[Co(H₂O)₆]²⁺	4	10		NIST
Hexaaquacopper(II) ion	[Cu(H₂O)₆]²⁺	3	8		NIST
Hexaaquairon(II) ion	[Fe(H₂O)₆]²⁺	3	10		NIST
Hexaaquairon(III) ion	[Fe(H₂O)₆]³⁺	6	9		NIST
Hexaaquamanganese(II) ion	[Mn(H₂O)₆]²⁺	5			NIST
Hexaaquavanadium(II) ion	[V(H₂O)₆]²⁺	4			NIST
Hexaaquavanadium(III) ion	[V(H₂O)₆]³⁺	2	1		NIST
Hexadecanoic acid	CH₃(CH₂)₁₄COOH	6		Wikipedia	NIST
(9Z)-Hexadecenoic acid	Palmitoleic Acid			Wikipedia	NIST
(2E, 4E)-Hexadiene			2		NIST
(2E, 4Z)-Hexadiene			2		NIST
Hexafluoroaluminate ion	[AlF₆]^3–		1		NIST
Hexafluoroantimonate(V)	[SbF₆]^–	2	1		NIST
Hexafluoroarsinate ion	[AsF₆]^–	3	1		NIST
Hexafluoroethane	C₂F₆	1		Wikipedia	NIST
Hexafluoropalladium(IV)	[PdF₆]^2–				NIST
Hexafluoroplatinate ion	[PtF₆]^–	1	1		NIST
Hexafluorosilicate ion	[SiF₆]^2–	2	2		NIST
Hexafluorosilicic acid (aqueous)	H₂SiF₆(aq)	2	1	Wikipedia	NIST
Hexafluorosulfur	SF₆	5		Wikipedia	NIST
4,4a,5,6,7,8- Hexahydro-2(3H)- naphthalenone			4		NIST
Hexahydrobenzoic acid		1	1		NIST
Hexahydroiron(II) ion	[FeH₆]^4–	1	1		NIST
Hexahydroxychromium(III) ion	[Cr(OH)₆]^3–	2	1		NIST
1,2,3,4,5,6-Hexahydroxyhexane		1		Wikipedia	NIST
3,3,6,6,9,9-Hexamethyl-1,2,4,5,7,8-hexoxonane		1	1	Wikipedia	NIST
Hexamethylene		5	7	Wikipedia	NIST
Hexamethylenediamine		1	1	Wikipedia	NIST
Hexamethylenetetramine		1	2	Wikipedia	NIST
Hexamethylphosphoramide	HMPA			Wikipedia	NIST
Hexamethylphosphoric triamide	HMPA			Wikipedia	NIST
Hexamine		1	2	Wikipedia	NIST
Hexane		1	5	Wikipedia	NIST
Hexane-1,6-diamine		1	1	Wikipedia	NIST
Hexanedioic acid		4	3	Wikipedia	NIST
6-Hexanolactone		1		Wikipedia	NIST
1,3,5-Hexatriene					NIST
HF	HF	30	39	Wikipedia	NIST
Hf	Hf			Wikipedia	NIST
(HF)6	(HF)₆	1		Wikipedia	NIST
HfBr3	HfBr₃				NIST
HfBr4	HfBr₄				NIST
HfCl3	HfCl₃				NIST
HfCl4	HfCl₄			Wikipedia	NIST
HfF4	HfF₄				NIST
HfI3	HfI₃				NIST
HfI4	HfI₄				NIST
HfO2	HfO₂			Wikipedia	NIST
HFO3S	HSO₃F	2	2	Wikipedia	NIST
Hg	Hg	4	1	Wikipedia	NIST
Hg(NO3)2	Hg(NO₃)₂	1	1	Wikipedia	NIST
Hg(OAc)2	Hg(OCOCH₃)₂	1		Wikipedia	NIST
Hg(ONC)2	Hg(ONC)₂	2		Wikipedia	NIST
Hg2+	Hg²⁺		9		NIST
Hg2Br2	Hg₂Br₂	1			NIST
Hg2Cl2	Hg₂Cl₂	1	1	Wikipedia	NIST
Hg2F2	Hg₂F₂				NIST
Hg2I2	Hg₂I₂	1			NIST
Hg2O	Hg₂O				NIST
Hg2S	Hg₂S	1			NIST
[Hg2]2+	Hg₂³⁺	1	5		NIST
HgBr2	HgBr₂				NIST
HgCl2	HgCl₂	2	1	Wikipedia	NIST
HgF2	HgF₂			Wikipedia	NIST
HgI2	HgI₂			Wikipedia	NIST
HgO	HgO	2	2	Wikipedia	NIST
HgS	HgS	1		Wikipedia	NIST
HgSO4	HgSO₄	1	3	Wikipedia	NIST
HI	HI	12	13	Wikipedia	NIST
HIO	HOI	5		Wikipedia	NIST
HIO3	HIO₃	4	1	Wikipedia	NIST
HIO4	HIO₄	2	1	Wikipedia	NIST
His		1	1	Wikipedia	NIST
Histidine		1	1	Wikipedia	NIST
Histidine, deprotonated			1	Wikipedia	NIST
Histidine, doubly-protonated		1		Wikipedia	NIST
Histidine, protonated		1	1	Wikipedia	NIST
HMDA		1	1	Wikipedia	NIST
HMPA	HMPA			Wikipedia	NIST
HMPT	HMPA			Wikipedia	NIST
HMX			1	Wikipedia	NIST
HN3	HN₃	2	3	Wikipedia	NIST
HN=C=NH	HN=C=NH	2	3	Wikipedia	NIST
HN=NH	HN=NH			Wikipedia	NIST
HNa	NaH	2	7	Wikipedia	NIST
HNO2	HNO₂	9	10	Wikipedia	NIST
HNO3	HNO₃	6	25	Wikipedia	NIST
HNO3 (5 molar)	HNO₃ ^{5 molar}	1	1	Wikipedia	NIST
HNO3(aq)	HNO₃(aq)	3	3	Wikipedia	NIST
HNO3(g)	HNO₃(g)	1	1	Wikipedia	NIST
HNO3, fuming	HNO₃ ^fuming	2	3	Wikipedia	NIST
[HN]2-	[HN]^2–		1	Wikipedia	NIST
Ho	Ho			Wikipedia	NIST
HO.	HO•	12	8	Wikipedia	NIST
Ho2O3	Ho₂O₃			Wikipedia	NIST
HOBr	HOBr	4	1	Wikipedia	NIST
HoBr3	HoBr₃				NIST
HOCH2CH2OH		6	9	Wikipedia	NIST
HOCl	HClO	6	4	Wikipedia	NIST
HoCl3	HoCl₃				NIST
HOD	DOH	1			NIST
HOF	HOF	2	1		NIST
HoF3	HoF₃				NIST
HoI3	HoI₃				NIST
Holmia	Ho₂O₃			Wikipedia	NIST
Holmium	Ho			Wikipedia	NIST
Holmium bromide	HoBr₃				NIST
Holmium chloride	HoCl₃				NIST
Holmium fluoride	HoF₃				NIST
Holmium iodide	HoI₃				NIST
Holmium(III) oxide	Ho₂O₃			Wikipedia	NIST
Homberg's phosphorus	CaCl₂	9		Wikipedia	NIST
Homogeneous mixture (generic)	Homogeneous Mixture			Wikipedia
HONC	H–O=N=C	1		Wikipedia	NIST
HONO	HNO₂	9	10	Wikipedia	NIST
HOO•	HOO•	1	5		NIST
HOOCCOOH		5	2	Wikipedia	NIST
HOOH	HOOH	12	30	Wikipedia	NIST
[HOO]-	[HOO]^–		2		NIST
Horn silver	AgCl			Wikipedia
Hornblende	Ca₂(Mg,Fe,Al)₅ (Al,Si)₈O₂₂(OH)₂			Wikipedia
Host (generic)			1
Host-guest complex		1
[HO]+	[HO]⁺		1		NIST
[HO]-	[OH]^–	25	79	Wikipedia	NIST
[HPO3]2-	[HPO₃]^2–		1	Wikipedia	NIST
[HPO4]2-	[HPO₄]^2–	1	2		NIST
Hs	Hs			Wikipedia	NIST
HS•	HS•				NIST
[HSeO3]-	[HSeO₃]^–	1	1		NIST
[HSeO4]-	[HSeO₄]^–				NIST
[HSe]-	[HSe]^–		1		NIST
[HSiO3]-	[HSiO₃]^–				NIST
HSO3Cl	HSO₃Cl	1	2	Wikipedia	NIST
HSO3F	HSO₃F	2	2	Wikipedia	NIST
[HSO3]-	[HSO₃]^–	3	8		NIST
[HSO4]-	[HSO₄]^–	17	3		NIST
HSSH	HSSH	1			NIST
[HSS]-	[HSS]^–	1	1		NIST
[HS]+	[HS]⁺				NIST
[HS]-	[HS]^–	1	8		NIST
[HTeO3]-	[HTeO₃]^–	1	1		NIST
[HTe]-	[HTe]^–		2		NIST
Humite series	Mg(OH,F)₂ .1-4Mg₂SiO₄			Wikipedia
[HXeO4]-	[HXeO₄]^–	1	1		NIST
Hydracryonitrile		1	3		NIST
Hydrargyrum	Hg	4	1	Wikipedia	NIST
Hydrated aluminium hydroxide	Al(H₂O)₃(OH)₃ Al(OH)₃	4	3		NIST
Hydrated oxonium ion		1		Wikipedia	NIST
Hydrazide anion	[NH₂–NH]^–		1		NIST
Hydrazine	H₂N–NH₂	5	11	Wikipedia	NIST
Hydrazine, 1° alkyl (generic)	R–CH₂–NNH₂	1		Wikipedia
Hydrazine, 2,4-dinitrophenyl				Wikipedia	NIST
Hydrazine, alkyl (generic)	R–NHNH₂			Wikipedia
Hydrazine, mono-protonated	[H₂N-NH₃]⁺				NIST
Hydrazine, N,N-Dialkyl (generic)	(R)₂N–NH₂	1		Wikipedia
Hydrazine, phenyl			1	Wikipedia	NIST
Hydrazinium ion	[H₂N-NH₃]⁺				NIST
Hydrazoic acid	HN₃	2	3	Wikipedia	NIST
Hydrazoic acid anion	[N₃]^–		5	Wikipedia	NIST
Hydrazone (generic)	RHC=N–NH₂	1	1	Wikipedia
Hydride donor Lewis acid reducing agent (generic)
Hydride ion	H^–		36	Wikipedia	NIST
Hydride ion complex reducing agent (generic)
Hydridocarbide ion	HC≡C^–	1	2	Wikipedia	NIST
Hydrochloric acid, aqueous	HCl(aq)	2	13	Wikipedia	NIST
Hydrochloric acid, concentrated	HCl(conc)	2	9	Wikipedia	NIST
Hydrofluoric acid.antimony(V) pentafluoride	ROH	2		Wikipedia	NIST
Hydrogen	H₂	139	158	Wikipedia	NIST
Hydrogen 1	¹H	3	7	Wikipedia
Hydrogen acetylide anion	HC≡C^–	1	2	Wikipedia	NIST
Hydrogen arsenate ion	[HAsO₄]^2–	1	1		NIST
Hydrogen atom	H•	20	10	Wikipedia	NIST
Hydrogen azide	HN₃	2	3	Wikipedia	NIST
Hydrogen bond complex (generic)				Wikipedia
Hydrogen bromide	HBr	22	20	Wikipedia	NIST
Hydrogen bromide, 30% solution in acetic acid	HBr in CH₃COOH ^{30% W/W}	1			NIST
Hydrogen carbide	CH₄	14	32	Wikipedia	NIST
Hydrogen carbide ion	HC≡C^–	1	2	Wikipedia	NIST
Hydrogen carbonate ion	[HCO₃]^–	4	5		NIST
Hydrogen carbonyl radical		5	6		NIST
Hydrogen chloride	HCl	107	50	Wikipedia	NIST
Hydrogen chromate ion	[HCrO₄]^–				NIST
Hydrogen citrate ion		1	1		NIST
Hydrogen cyanamide	HN=C=NH	2	3	Wikipedia	NIST
Hydrogen cyanide	HCN	5	18	Wikipedia	NIST
Hydrogen delivered equivalents	[H]		32		NIST
Hydrogen deuteride	HD	1			NIST
Hydrogen deuterium oxide	DOH	1			NIST
Hydrogen difluoride ion	[FHF]^–	3	2	Wikipedia	NIST
Hydrogen disulfide ion	[HSS]^–	1	1		NIST
Hydrogen family (generic)	Group Ia/1 Alkali Metals			Wikipedia
Hydrogen fluoride	HF	30	39	Wikipedia	NIST
Hydrogen fluoride dimer		1		Wikipedia	NIST
Hydrogen fluoride hexamer	(HF)₆	1		Wikipedia	NIST
Hydrogen fluoride/Fluoride ion Complex	[FHF]^–	3	2	Wikipedia	NIST
Hydrogen fumarate ion		1	1		NIST
Hydrogen hydroxide	H₂O	529	531	Wikipedia	NIST
Hydrogen iodide	HI	12	13	Wikipedia	NIST
Hydrogen ion	H⁺	77	547	Wikipedia	NIST
Hydrogen malonate ion		1	1		NIST
Hydrogen o-phthalate ion		1	1		NIST
Hydrogen oxide	H₂O	529	531	Wikipedia	NIST
Hydrogen peroxide	HOOH	12	30	Wikipedia	NIST
Hydrogen peroxide anion	[HOO]^–		2		NIST
Hydrogen peroxide radical	HOO•	1	5		NIST
Hydrogen peroxide radical anion	[H₂O₂]^+•	1	1		NIST
Hydrogen phosphate dianion	[HPO₄]^2–	1	2		NIST
Hydrogen phosphite ion	[H₃PO₄]^–	1	1		NIST
Hydrogen radical	H•	20	10	Wikipedia	NIST
Hydrogen removal oxidising agent (generic)
Hydrogen selenate ion	[HSeO₄]^–				NIST
Hydrogen selenide	H₂Se	3	1	Wikipedia	NIST
Hydrogen selenide ion	[HSe]^–		1		NIST
Hydrogen selenite ion	[HSeO₃]^–	1	1		NIST
Hydrogen silicate ion	[HSiO₃]^–				NIST
Hydrogen succinate ion		1	1		NIST
Hydrogen sulfate ion	[HSO₄]^–	17	3		NIST
Hydrogen sulfenium ion	[HS]⁺				NIST
Hydrogen sulfide	H₂S	10	22	Wikipedia	NIST
Hydrogen sulfide anion	[HS]^–	1	8		NIST
Hydrogen sulfide, aqueous	H₂S(aq)	1		Wikipedia	NIST
Hydrogen sulfide radical	HS•				NIST
Hydrogen sulfite ion	[HSO₃]^–	3	8		NIST
Hydrogen sulphate ion	[HSO₄]^–	17	3		NIST
Hydrogen sulphide anion	[HS]^–	1	8		NIST
Hydrogen sulphide ion	H₂S	10	22	Wikipedia	NIST
Hydrogen tartrate ion		1	1		NIST
Hydrogen telluride	H₂Te	1	2	Wikipedia	NIST
Hydrogen telluride anion	[HTe]^–		2		NIST
Hydrogen tellurite ion	[HTeO₃]^–	1	1		NIST
Hydrogen, ortho	↑H–H↑	1		Wikipedia	NIST
Hydrogen, para	↑H–H↓			Wikipedia	NIST
Hydrogen, protonated	[H₃]⁺	2	3	Wikipedia	NIST
Hydrogenation reduction system (generic)				Wikipedia
Hydrogenic ion	[H₃]⁺	2	3	Wikipedia	NIST
Hydrogenol	H₂O	529	531	Wikipedia	NIST
Hydrohydroxynitroyl (generic)
Hydron	H⁺	77	547	Wikipedia	NIST
Hydronitroyl (generic)
Hydronium ion, [H3O]+	[H₃O]⁺	5	5		NIST
Hydronium ion, [H3]+	[H₃]⁺	2	3	Wikipedia	NIST
Hydroperoxy radical	HOO•	1	5		NIST
Hydroquinone		2		Wikipedia	NIST
Hydroxide ion	[OH]^–	25	79	Wikipedia	NIST
Hydroxy acid anion (generic)	X–O^–
Hydroxy acid, protonated (generic)
beta-Hydroxy aldehyde (generic)		2
Hydroxy alkoxy carbenium ion (generic)		1
beta-Hydroxy amine (generic)		1
2-Hydroxy benzoic acid		1	2	Wikipedia	NIST
Hydroxy carbenium ion		1			NIST
Hydroxy cation	[HO]⁺		1		NIST
beta-Hydroxy ether (generic)		1
Hydroxy radical	HO•	12	8	Wikipedia	NIST
2-Hydroxy-2-methylbutane		1			NIST
2-Hydroxy-2-methylbutanenitrile		1	1		NIST
2-Hydroxy-2-methylpropanenitrile		1	1		NIST
2-Hydroxy-3-methylbutane			1		NIST
4-Hydroxy-4-methyl-2-pentanone		1	1		NIST
Hydroxyacetic acid		2		Wikipedia	NIST
4-Hydroxyaminobenzene		1		Wikipedia	NIST
Hydroxyammonium ion	[H₃N-OH]⁺	4			NIST
4-Hydroxyazobenzene		1			NIST
2-Hydroxybenzaldehyde			1	Wikipedia	NIST
Hydroxybenzene		8	10	Wikipedia	NIST
3-Hydroxybutanal		1	2		NIST
2-Hydroxybutane		1	2	Wikipedia	NIST
(2S)-2-Hydroxybutanedioic acid		1	1	Wikipedia	NIST
2-Hydroxybutanedioic acid		1		Wikipedia	NIST
4-Hydroxybutyric acid gamma lactone		2	3	Wikipedia	NIST
Hydroxydialkoxy carbenium ion (generic)		1
Hydroxyethanoic acid		2		Wikipedia	NIST
2-Hydroxyethyl ethanoate		1	1		NIST
Hydroxyfumaric acid		1	1	Wikipedia	NIST
2-Hydroxyisobutylnitrile		1	1		NIST
Hydroxyl radical	HO•	12	8	Wikipedia	NIST
Hydroxylamine	H₂N–OH	1	7	Wikipedia	NIST
Hydroxylamine (generic)	R–NHOH			Wikipedia
Hydroxylamine hydrochloride		1		Wikipedia	NIST
Hydroxylamine, protonated	[H₃N-OH]⁺	4			NIST
Hydroxymaleic acid		1	1	Wikipedia	NIST
Hydroxymethyl carbenium ion		1			NIST
1-Hydroxynaphthalene			2		NIST
Hydroxynitrile (AS/A2 generic)		2		Wikipedia
Hydroxynitrile (generic)		1
Hydroxynitrile (generic)		2
3-Hydroxynitrobenzene		1			NIST
4-Hydroxynitrobenzene		1		Wikipedia	NIST
Hydroxynitroyl (generic)
2-Hydroxypentanenitrile		1			NIST
4-(1-(4-Hydroxyphenyl)-1-methylethyl)phenol		1	1	Wikipedia	NIST
N-(-4-hydroxyphenyl)ethanamide				Wikipedia	NIST
Hydroxyphosphane, alkyl (generic)
Hydroxyphosphane, dialkyl (generic)
2-Hydroxypropane		9	8	Wikipedia	NIST
3-Hydroxypropanenitrile		1	3		NIST
(2R)-2-Hydroxy propanoate ion		2			NIST
3-Hydroxypropionitrile		1	3		NIST
(2S)-Hydroxysuccinic acid		1	1	Wikipedia	NIST
D/L Hydroxysuccinic acid		1		Wikipedia	NIST
beta-Hydroxythioether (generic)		1
Hypersthene	(Mg,Fe)SiO₃			Wikipedia
Hypnotic (generic)	Hypnotic			Wikipedia
Hypo	Na₂S₂O₃	5	4	Wikipedia	NIST
Hypobromite ion	[BrO]^–	1	2		NIST
Hypobromous acid	HOBr	4	1	Wikipedia	NIST
Hypochlorite ion	[ClO]^–	2	5	Wikipedia	NIST
Hypochlorous acid	HClO	6	4	Wikipedia	NIST
Hypochlorous anhydride	Cl₂O	1	3	Wikipedia	NIST
Hypoflourite ion	[FO]^–		1		NIST
Hypofluouous acid	HOF	2	1		NIST
Hypoiodite ion	[IO]^–	1	3		NIST
Hypoiodous acid	HOI	5		Wikipedia	NIST
Hyponitrite ion	[N₂O₂]^2–				NIST
Hypophosphite ion	[H₂PO₂]^–	2	1		NIST
Hypophosphoric acid			1		NIST
Hypophosphorous acid	H₃PO₂	2	2	Wikipedia	NIST
Hyriodic acid	HI	12	13	Wikipedia	NIST
I (isoleucine)		1	1	Wikipedia	NIST
I•	I•			Wikipedia	NIST
I+	I⁺		9		NIST
I-	I^–	15	41	Wikipedia	NIST
I2	I₂	29	42	Wikipedia	NIST
I2Cl6	I₂Cl₆	1	1	Wikipedia	NIST
[I2Cl]-	[I₂Cl]^–	1			NIST
I2O5	I₂O₅	2	2		NIST
[I3]+	[I₃]⁺	1			NIST
[I3]-	[I₃]^–	2	1	Wikipedia	NIST
IAA				Wikipedia	NIST
IBr	I–Br	1	1		NIST
ICl	I–Cl	2	4	Wikipedia	NIST
[ICl2]-	[ICl₂]^–	1			NIST
ICl3	I₂Cl₆	1	1	Wikipedia	NIST
ICN	I–C≡N		1	Wikipedia	NIST
Idocrase	Ca₁₀(Mg, Fe)₂Al₄ (SiO₄)₅(Si₂O₇)₂(OH,F)₄			Wikipedia
D-Idose		1		Wikipedia	NIST
IF	I–F	1	1		NIST
IF3	IF₃			Wikipedia	NIST
IF5	IF₅	2	3	Wikipedia	NIST
[IF6]-	[IF₆]^–	1			NIST
IF7	IF₇	3	1	Wikipedia	NIST
[IF8]-	[IF₈]^–	1			NIST
IIR (isobutene-isoprene rubber)	Butyl Rubber	1	1	Wikipedia	NIST
Ile		1	1	Wikipedia	NIST
Ilmenite	FeTiO₃		1	Wikipedia
Ilvaite	Ca(Fe²⁺)₂Fe³⁺ [O\|OH\|Si₂O₇]			Wikipedia
Imidazole		1	1	Wikipedia	NIST
Imidazole anion			1		NIST
Imidazole, protonated		1			NIST
Imidazonium ion		1			NIST
Imide (generic)				Wikipedia
Imide ion	[HN]^2–		1	Wikipedia	NIST
Imido anion (generic)
Iminazole		1	1	Wikipedia	NIST
alpha,beta-Unsatruated imine					NIST
Imine, dialkyl (generic)		2
Imine, N-alkyl alkyl (generic)		1	1	Wikipedia
Imine, trialkyl (generic)		1
Imino anion (generic)			1	Wikipedia
In	In	1	7	Wikipedia	NIST
In+	In⁺	1	1		NIST
In2O3	In₂O₃	1		Wikipedia	NIST
IN3	I–N₃				NIST
In3+	In³⁺	1	1		NIST
InBr3	InBr₃	1		Wikipedia	NIST
InCl3	InCl₃	1		Wikipedia	NIST
INCO	I–N=C=O				NIST
Indene		1		Wikipedia	NIST
Indium	In	1	7	Wikipedia	NIST
Indium chloride	InCl₃	1		Wikipedia	NIST
Indium fluoride	InF₃	1			NIST
Indium hydride	InH₃	1	1		NIST
Indium iodide	InI₃	1			NIST
Indium oxide	In₂O₃	1		Wikipedia	NIST
Indium(III) bromide	InBr₃	1		Wikipedia	NIST
Indium(I) ion	In⁺	1	1		NIST
Indium(III) Ion	In³⁺	1	1		NIST
Indole			1	Wikipedia	NIST
Indole-3-acetic acid				Wikipedia	NIST
Indole, 2-alkyl (generic)		1
3-Indolepropionic acid		1			NIST
Inert (generic)	Inert Species
Inert gas (generic)	Group VIIIa/18 Noble Gases			Wikipedia
InF3	InF₃	1			NIST
Infusorial earth	Kieselguhr		1	Wikipedia
InH3	InH₃	1	1		NIST
[InH4]-	[InH₄]^–	1			NIST
InI3	InI₃	1			NIST
Inorganic anion (AS/A2 generic)
Intercalated material (generic)	Intercalated Material			Wikipedia
Interhalogen (generic)	Interhalogen Compound			Wikipedia
Intermediate material (generic)	Intermediate Material
Intimate ion-pair (generic)
[IO3]-	[IO₃]^–	1	6	Wikipedia	NIST
[IO4]-	[IO₄]^–		1	Wikipedia	NIST
Iodane	HI	12	13	Wikipedia	NIST
Iodate ion	[IO₃]^–	1	6	Wikipedia	NIST
Iodic acid	HIO₃	4	1	Wikipedia	NIST
Iodide ion	I^–	15	41	Wikipedia	NIST
Iodide, 2° alkyl (generic)		2	1
Iodide, organic (generic)	R–I	3	7	Wikipedia
Iodine	I₂	29	42	Wikipedia	NIST
Iodine azide	I–N₃				NIST
Iodine cation	I⁺		9		NIST
Iodine cyanate	I–N=C=O				NIST
Iodine cyanide	I–C≡N		1	Wikipedia	NIST
Iodine dichloride ion	[ICl₂]^–	1			NIST
Iodine heptafluoride	IF₇	3	1	Wikipedia	NIST
Iodine hexafluoride ion	[IF₆]^–	1			NIST
Iodine hydride	HI	12	13	Wikipedia	NIST
Iodine hydroxide	HOI	5		Wikipedia	NIST
Iodine monobromide	I–Br	1	1		NIST
Iodine monochloride	I–Cl	2	4	Wikipedia	NIST
Iodine monofluoride	I–F	1	1		NIST
Iodine octafluoride ion	[IF₈]^–	1			NIST
Iodine pentafluoride	IF₅	2	3	Wikipedia	NIST
Iodine pentoxide	I₂O₅	2	2		NIST
Iodine radical	I•			Wikipedia	NIST
Iodine trichloride dimer	I₂Cl₆	1	1	Wikipedia	NIST
Iodine trifluoride	IF₃			Wikipedia	NIST
Iodine(V) oxide	I₂O₅	2	2		NIST
Iodoacetate ion	[ICH₂COO]^–		1		NIST
Iodoacetic acid	CH₂ICOOH	1			NIST
Iodoacetone		1			NIST
Iodobenzene		3		Wikipedia	NIST
Iodoenium ion	I⁺		9		NIST
Iodoethane	CH₃CH₂I	3	1	Wikipedia	NIST
Iodomethane	CH₃I	4	12	Wikipedia	NIST
2-Iodo-2-methyl propane	(CH₃)₃CI	4			NIST
Iodonium ion	[IH₂]⁺	1			NIST
Iodonium ion, alkyl (generic)	[R–IH]⁺	2
2-Iodopropane	(CH₃)₂CHI	3			NIST
1-Iodopropanone		1			NIST
Ion exchange resin, anionic (generic)			2	Wikipedia
Ion exchange resin, calcium salt		2		Wikipedia	NIST
Ion exchange resin, sodium salt (generic)		1	1	Wikipedia
Ion piar, loose (generic)
Ion, complex (generic)	Complex Ion			Wikipedia
Ion-pair, Intimate (generic)
Ion-pair, solvent separated (generic)
Ionic material (generic)	Ionic			Wikipedia
Ionic molecular material (generic)	Molecular or Complex Salt
[IO]-	[IO]^–	1	3		NIST
IPA		9	8	Wikipedia	NIST
[iPr2N]-			2		NIST
iPrBr	(CH₃)₂CHBr	4	8		NIST
iPrCl		4	2		NIST
iPrF		2			NIST
iPrI	(CH₃)₂CHI	3			NIST
iPrOEt		1			NIST
iPrOH		9	8	Wikipedia	NIST
[iPr]O-	[(CH₃)₂CH–O]^–	2	1		NIST
Ir	Ir			Wikipedia	NIST
Ir3+	Ir³⁺				NIST
Ir4+	Ir⁴⁺				NIST
IrBr3	IrBr₃				NIST
IrBr4	IrBr₄				NIST
IrCl3	IrCl₃			Wikipedia	NIST
IrCl4	IrCl₄				NIST
IrF3	IrF₃				NIST
IrF4	IrF₄				NIST
IrF6	IrF₆				NIST
IrI3	IrI₃				NIST
IrI4	IrI₄				NIST
Iridium	Ir			Wikipedia	NIST
Iridium(III) bromide	IrBr₃				NIST
Iridium(III) chloride	IrCl₃			Wikipedia	NIST
Iridium(III) fluoride	IrF₃				NIST
Iridium(III) iodide	IrI₃				NIST
Iridium(III) Ion	Ir³⁺				NIST
Iridium(IV) bromide	IrBr₄				NIST
Iridium(IV) chloride	IrCl₄				NIST
Iridium(IV) fluoride	IrF₄				NIST
Iridium(IV) iodide	IrI₄				NIST
Iridium(IV) Ion	Ir⁴⁺				NIST
Iridium(IV) oxide	IrO₂			Wikipedia	NIST
Iridium(VI) fluoride	IrF₆				NIST
IrO2	IrO₂			Wikipedia	NIST
Iron	Fe	9	5	Wikipedia	NIST
Iron arsenosulfide	FeS₂.FeAs₂		1		NIST
Iron cobalt alloy	Fe₆₅Co₃₅			Wikipedia	NIST
Iron family (generic)	Group VIIIb/8 Iron Family			Wikipedia
Iron group metal (generic)	Group VIIIb/8 Iron Family			Wikipedia
Iron pentacarbonyl	Fe(CO)₅	1	2	Wikipedia	NIST
Iron phosphate	Fe₃(PO₄)₂ .8H₂O			Wikipedia
Iron pyrites	FeS₂ ^pyrite		2	Wikipedia
Iron titanium hydride	FeTiH_0.95			Wikipedia	NIST
Iron(II,III) oxide	Fe₃O₄	1	1	Wikipedia
Iron(II) bipyridyl ion		2			NIST
Iron(II) bromide	FeBr₂			Wikipedia	NIST
Iron(II) carbonate	FeCO₃	2		Wikipedia	NIST
Iron(II) chloride	FeCl₂	2	1	Wikipedia	NIST
Iron(II) fluoride	FeF₂			Wikipedia	NIST
Iron(II) hexahydrated ion	[Fe(H₂O)₆]²⁺	3	10		NIST
Iron(II) hexahydro ion	[FeH₆]^4–	1	1		NIST
Iron(II) hydroxide	Fe(OH)₂	1		Wikipedia	NIST
Iron(II) iodide	FeI₂				NIST
Iron(II) ion	Fe²⁺	4	29		NIST
Iron(II) oxalate	FeC₂O₄	1	1		NIST
Iron(II) oxide	FeO	3		Wikipedia	NIST
Iron(II) sulfate heptahydrate	FeSO₄.7H₂O	1	2		NIST
Iron(II) sulfide	FeS	5	1	Wikipedia	NIST
Iron(II) tetraaquadihydroxy complex	Fe(H₂O)₄(OH)₂ Fe(OH)₂	4	1		NIST
Iron(II) tungstate	FeWO₄	1			NIST
Iron(II,III) oxide	FeO.Fe₂O₃	1	2	Wikipedia	NIST
Iron(III) bromide	FeBr₃	1	1	Wikipedia	NIST
Iron(III) chloride	FeCl₃	2	9	Wikipedia	NIST
Iron(III) chlorosulfate	FeSO₄Cl		1		NIST
Iron(III) fluoride	FeF₃			Wikipedia	NIST
Iron(III) hexahydrated complex ion	[Fe(H₂O)₆]³⁺	6	9		NIST
Iron(III) hydroxide	Fe(OH)₃	3		Wikipedia	NIST
Iron(III) ion	Fe³⁺	9	11		NIST
Iron(III) nitrate nonahydrate	Fe(NO₃)₃ .9H₂O	1		Wikipedia	NIST
Iron(III) oxide	Fe₂O₃	4	5	Wikipedia	NIST
Iron(III) pentaaquahydroxy complex ion	[Co(NH₃)₆]²⁺	1			NIST
Iron(III) pentaaquathiocyanato complex ion	[Fe(H₂O)₅(SCN)]²⁺	1			NIST
Iron(III) sulfate pentahydrate	Fe₂(SO₄)₃ .5H₂O		2	Wikipedia	NIST
Iron(III) triaquatrihydroxy complex	Fe(H₂O)₃(OH)₃ Fe(OH)₃	5	1		NIST
Iron(III) tris(ethanedioate) complex ion	[Fe(C₂O₄)₃]^3–	2			NIST
beta-Isoamylene		1	2		NIST
Isobutane		3	4	Wikipedia	NIST
Isobutanol		4	1	Wikipedia	NIST
Isobutene		9	12	Wikipedia	NIST
Isobutyl carbenium ion		1		Wikipedia	NIST
Isobutylamine		1			NIST
Isobutylchloride		1			NIST
Isobutylene		9	12	Wikipedia	NIST
Isobutyraldehyde		3	2	Wikipedia	NIST
Isobutyronitrile		1	1		NIST
Isocitrate dehydrogenase	Isocitrate Dehydrogenase		2	Wikipedia
Isocitric acid		1	1	Wikipedia	NIST
Isocyanate (generic)	R–N=C=O	3		Wikipedia
Isocyanate ion	[NCO]^–	3	4	Wikipedia	NIST
Isocyanic acid	HNCO	1			NIST
Isocyanide ion	[CN]^–	5	27	Wikipedia	NIST
Isocyanide, benzyl		1		Wikipedia	NIST
Isocyanide, n-butyl		1		Wikipedia	NIST
Isocyanide, t-butyl		1		Wikipedia	NIST
Isocyanide, cyclohexyl				Wikipedia	NIST
Isocyanide (generic)	R–NC	3		Wikipedia
Isodiazine (generic)
Isoeugenol					NIST
1,3-Isoindoledione		3		Wikipedia	NIST
Isoleucine		1	1	Wikipedia	NIST
Isoleucine, deprotonated			1	Wikipedia	NIST
Isoleucine, protonated		1		Wikipedia	NIST
Isooctane		2	3	Wikipedia	NIST
Isoprene		4	3	Wikipedia	NIST
Isopropanol		9	8	Wikipedia	NIST
Isopropoxide, aluminium	Al(OⁱPr)₃		1	Wikipedia	NIST
Isopropoxymethylphosphoryl fluoride				Wikipedia	NIST
Isopropyl alcohol		9	8	Wikipedia	NIST
Isopropyl alkoxide ion	[(CH₃)₂CH–O]^–	2	1		NIST
Isopropyl anion			3	Wikipedia	NIST
Isopropyl bromide	(CH₃)₂CHBr	4	8		NIST
Isopropyl carbocation		3	7		NIST
Isopropyl chloride		4	2		NIST
Isopropyl cyanide		1	1		NIST
Isopropyl fluoride		2			NIST
Isopropyl oxonium ion		2			NIST
1-Isopropyl-4-methyl-1,3-cyclohexadiene			1	Wikipedia	NIST
Isopropylamine	(CH₃)₂CHNH₂	1		Wikipedia	NIST
Isopropylbenzene		1	1	Wikipedia	NIST
4,4'-Isopropylidenediphenol		1	1	Wikipedia	NIST
Isopropyliodide	(CH₃)₂CHI	3			NIST
Isoquinoline				Wikipedia	NIST
Isoselenocyanate (generic)	Râ€“Seâ€“N=C
Isotetralin		1			NIST
Isothiazole				Wikipedia	NIST
Isothiocyanate (generic)	R–N=C=S	2		Wikipedia
Isothiocyanate ion	[SCN]^–		10	Wikipedia	NIST
Isothiocyanate, acid (generic)		1
Isotope, non-radioactive (generic)	Isotope Non-Radioeactive
Isoxazole				Wikipedia	NIST
Jadeite	NaAlSi₂O₆(+ Fe³⁺)			Wikipedia
Jamesonite	Pb₄FeSb₆S₁₄			Wikipedia
Jarosite	KFe₃(SO₄)₂(OH)₆			Wikipedia
K	K	6	24	Wikipedia	NIST
K (lysine)		1	4	Wikipedia	NIST
K+	K⁺	19	45		NIST
K2C2	KCâ‰¡CK	2			NIST
K2CO3	K₂CO₃	4	2	Wikipedia	NIST
K2Cr2O7	K₂Cr₂O₇	1	5	Wikipedia	NIST
K2MnO4	K₂MnO₄	2	1		NIST
K2O	KO₂	2	2	Wikipedia	NIST
K2O2	K₂O₂	2		Wikipedia	NIST
K2PtCl4	K₂[PtCl₄]	1	1		NIST
K2PtCl6	K₂[PtCl₆]	1			NIST
K2ReH9	K₂ReH₉	1		Wikipedia	NIST
K2S	K₂S	3	1	Wikipedia	NIST
K2Se	K₂Se	2			NIST
K2SO4	K₂SO₄	2	1	Wikipedia	NIST
K2Te	K₂Te	2			NIST
K2ZnH4	K₂ZnH₄	1			NIST
K3As	K₃As	2	1		NIST
K3C60	K₃C₆₀	1		Wikipedia	NIST
K3MnO4	K₃MnO₄	2	1		NIST
K3P	K₃P	2			NIST
K3Sb	K₃Sb	2	1		NIST
KAlH4	KAlH₄				NIST
Kalinite	KAl(SO₄)₂.12H₂O	1		Wikipedia	NIST
Kalium	K	6	24	Wikipedia	NIST
Kaolinite	Al₂(OH)₄ Si₂O₅			Wikipedia
Kaon	K^–	1		Wikipedia
KAsO2	KAsO₂			Wikipedia	NIST
KBH4	KBH₄				NIST
KBr	KBr	12		Wikipedia	NIST
KBrO3	NaBrO₃	1	1	Wikipedia	NIST
KBrO4	NaBrO₄	2			NIST
KCl	KCl	11	11	Wikipedia	NIST
KClO3	KClO₃	2	2	Wikipedia	NIST
KClO4	KClO₄	3	1	Wikipedia	NIST
KCN	KCN	1	5	Wikipedia	NIST
Kerosene	Kerosine	1		Wikipedia	NIST
Kerosine	Kerosine	1		Wikipedia	NIST
Ketal (generic)		1		Wikipedia
Ketal, cyclic (generic)		1		Wikipedia
Ketene	H₂C=C=O	4	4	Wikipedia	NIST
Ketene, dialkyl (generic)	R₂C=C=O		1	Wikipedia
alpha-Keto carbenium ion (generic)			1
alpha-Keto carbenium synthon (generic)		1
beta-Ketoaldehyde (generic)		1
beta-Ketoaldehyde anion (generic)			1
beta-Ketoester anion (generic)			1	Wikipedia
beta-Ketoester (generic)		3
Alpha-ketoglutaric acid		1	1	Wikipedia	NIST
Ketohexamethylene		5	5	Wikipedia	NIST
Ketone (AS/A2 generic)		1	6	Wikipedia
Ketone (generic)		6	20	Wikipedia
alpha, beta-unsaturated Ketone (generic)			1	Wikipedia
Ketone, alpha-bromomethyl (generic)		2
Ketone, alpha-Nfg complex (generic)		1
Ketone, alkyl phenyl (generic)		4	3
Ketone, alpha-bromo (generic)		1
Ketone, dialkyl alpha-H (generic)		3	1
Ketone, gamma-alkyl (generic)		1
Ketone, alpha-halogen (generic)
Ketone, methyl alkyl (generic)		3	1
Ketone, alpha-methyl (generic)		1
Ketone, protonated (generic)		1
Ketose (generic)	Ketose			Wikipedia
KF	KF	5	5	Wikipedia	NIST
KH	KH	2	1	Wikipedia	NIST
KHCO3	KHCO₃	2	1	Wikipedia	NIST
KHF2	K[HF₂]	3	1		NIST
KI	KI	2	6	Wikipedia	NIST
Kieselguhr	Kieselguhr		1	Wikipedia
Kinetic energy absorber (generic)	m	1	9
Kinetic energy absorber, excited (generic)	m*	9	1
KMnO4	KMnO₄	2	4	Wikipedia	NIST
KNH2	KNH₂	2			NIST
KNO3	KNO₃	3	1	Wikipedia	NIST
KO2	K₂O	3	3	Wikipedia	NIST
KO3	KO₃	2			NIST
KOH	KOH	12	18	Wikipedia	NIST
Kr	Kr	1	2	Wikipedia	NIST
KrF2	KrF₂	1			NIST
Krypton	Kr	1	2	Wikipedia	NIST
Krypton diflouride	KrF₂	1			NIST
Kryptonium ion	[KrH]⁺	1			NIST
KSH	KSH	3			NIST
Kupfernickel	NiAs		1	Wikipedia
Kyanite	Al₂SiO₅			Wikipedia
L (leucine)		1	1	Wikipedia	NIST
La		1		Wikipedia	NIST
La2O3	La₂O₂			Wikipedia	NIST
La3+	La³⁺		1		NIST
LaBr3	LaBr₃			Wikipedia	NIST
LaCl3	LaCl₃			Wikipedia	NIST
Lactam (generic)				Wikipedia
beta-Lactam (generic)				Wikipedia
Lactate ion			1		NIST
(+/-) Lactic acid		1		Wikipedia	NIST
Lactone (generic)				Wikipedia
Lactose	Lactose			Wikipedia	NIST
LaF3	LaF₃				NIST
LAH	LiAlH₄	3	31	Wikipedia	NIST
LaI3	LaI₃				NIST
Lambda	Λ	1		Wikipedia
LaNi5H7	LiNi₅H₇			Wikipedia	NIST
Lanthania	La₂O₂			Wikipedia	NIST
Lanthanide element (generic)	Lanthanide Element			Wikipedia
Lanthanum		1		Wikipedia	NIST
Lanthanum bromide	LaBr₃			Wikipedia	NIST
Lanthanum fluoride	LaF₃				NIST
Lanthanum iodide	LaI₃				NIST
Lanthanum nickel hydride	LiNi₅H₇			Wikipedia	NIST
Lanthanum(III) chloride	LaCl₃			Wikipedia	NIST
Lanthanum(III) oxide	La₂O₂			Wikipedia	NIST
Lanthanum(III) Ion	La³⁺		1		NIST
LAO		2		Wikipedia	NIST
Lard	Lard		1	Wikipedia
Largactyl				Wikipedia	NIST
Laughing gas	N₂O	4	2	Wikipedia	NIST
Laumontite	Ca(AlSi₂O₆)₂ .4H₂O			Wikipedia
Lauric acid	CH₃(CH₂)₁₀COOH	1		Wikipedia	NIST
Lawrencite	FeCl₂	2	1	Wikipedia	NIST
Lawrencium	Lr			Wikipedia	NIST
Lazulite	(Mg,Fe)Al₂ (PO₄)₂(OH)₂			Wikipedia
Lazurite	(Na,Ca)₈ [(S,Cl,SO₄,OH)₂ \|(Al₆Si₆O₂₄)]			Wikipedia
LDA		1	1	Wikipedia	NIST
Lead		6		Wikipedia	NIST
Lead 206	²⁰⁶Pb	1		Wikipedia	NIST
Lead 207	²⁰⁷Pb	2		Wikipedia	NIST
Lead 208	²⁰⁸Pb	2		Wikipedia	NIST
Lead 209	²⁰⁹Pb	2	1	Wikipedia	NIST
Lead 210	²¹⁰Pb	2	1	Wikipedia	NIST
Lead 211	²¹¹Pb	1	1	Wikipedia	NIST
Lead 212	²¹²Pb	1	1	Wikipedia	NIST
Lead 214	²¹⁴Pb	1	1	Wikipedia	NIST
Lead chloride	PbCl₂	1		Wikipedia	NIST
Lead dioxide	PbO₂		4	Wikipedia	NIST
Lead glass	Lead Crystal Glass	1		Wikipedia
Lead hexachloride dianion	[PbCl₆]^2–	1			NIST
Lead hexafluoride dianion	[PbF₆]^2–	1			NIST
Lead sesquioxide	Pb₂O₃				NIST
Lead shot	Lead Shot			Wikipedia	NIST
Lead superoxide	PbO₂		4	Wikipedia	NIST
Lead tetrachloride	PbCl₄		1		NIST
Lead tetraethyl	Pb(CH₂CH₃)₄	1		Wikipedia	NIST
Lead tetrafluoride	PbF₄		1		NIST
Lead tetroxide	Pb₃O₄			Wikipedia	NIST
Lead trioxide	Pb₂O₃				NIST
Lead-sodium alloy	PbNa		1	Wikipedia	NIST
Lead(II) acetate	Pb(CH₃COO)₂	1		Wikipedia	NIST
Lead(II) azide	Pb(N₃)₂	2	1	Wikipedia	NIST
Lead(II) bromide	PbBr₂	1		Wikipedia	NIST
Lead(II) carbonate	PbCO₃	1		Wikipedia	NIST
Lead(II) chloride	PbCl₂	1		Wikipedia	NIST
Lead(II) chromate	PbCrO₄	1		Wikipedia	NIST
Lead(II) fluoride	PbF₂	1		Wikipedia	NIST
Lead(II) iodide	PbI₂	1		Wikipedia	NIST
Lead(II) ion	Pb²⁺	3	14		NIST
Lead(II) nitrate	Pb(NO₃)₂	1	2	Wikipedia	NIST
Lead(II) oxide	PbO	1	3	Wikipedia	NIST
Lead(II) permanganate	Pb(MnO₄)₂	1			NIST
Lead(II) phosphate	Pb₃(PO₄)₂	1			NIST
Lead(II) sulfate	PbSO₄	1	1	Wikipedia	NIST
Lead(II) sulfide	PbS	1		Wikipedia	NIST
Lead(IV) chloride	PbCl₄		1		NIST
Lead(IV) fluoride	PbF₄		1		NIST
Lead(IV) ion	Pb⁴⁺	1	2		NIST
Lead(IV) oxide	PbO₂		4	Wikipedia	NIST
Lead(IV) tetraacetate	Pb(OCOCH₃)₄	2		Wikipedia	NIST
Lepidocrocite	FeO(OH)			Wikipedia
Lepidolite	K(Li,Al)₃ (Al,Si,Rb)₄O₁₀ ( F,OH)₂		1	Wikipedia
Lepton	Lepton			Wikipedia
Leu		1	1	Wikipedia	NIST
Leucine		1	1	Wikipedia	NIST
Leucine, deprotonated			1	Wikipedia	NIST
Leucine, protonated		1		Wikipedia	NIST
Leucite	KAlSi₂O₆			Wikipedia
Lewis acid (AS/A2 generic)
Lewis acid, charged A+ (generic)	A⁺ ^{Cationic Lewis acid}		2
Lewis acid, neutral (generic)	A ^{Lewis acid}		2
Lewis acid/base complex, anionic (generic)	[A–B]^– ^{Anionic complex}	1
Lewis acid/base complex, cationic (generic)	[A–B]⁺ ^{Cationic complex}	1
Lewis acid/base complex, dative (generic)	[A←B] ^{Dative complex}	1
Lewis acid/base complex, neutral (generic)	A–B ^{Neutral complex}	1
Lewis base (AS/A2 generic)				Wikipedia
Lewis base, charged B- (generic)	Base^– ^{Proton abstractor}		16	Wikipedia
Lewis base, neutral B: (generic)	Base: ^{Proton abstractor}		4	Wikipedia
Lewisite		1		Wikipedia	NIST
Li	Li	6	35	Wikipedia	NIST
Li+	Li⁺	18	35		NIST
Li2	Li₂			Wikipedia	NIST
Li2C2	LiC≡CLi	3	1	Wikipedia	NIST
Li2NH	LiNH₂	2			NIST
Li2O	Li₂O	4	1	Wikipedia	NIST
Li2O2	Li₂O₂	2		Wikipedia	NIST
Li2S	Li₂S	2	1	Wikipedia	NIST
Li2Se	Li₂Se	2			NIST
Li2Te	Li₂Te	2			NIST
Li3As	Li₃As	2	1		NIST
Li3N	Li₃N	2	1	Wikipedia	NIST
Li3P	Li₃P	2			NIST
Li3Sb	Li₃Sb	2	1		NIST
LiAlH4	LiAlH₄	3	31	Wikipedia	NIST
Libavius, fuming spirit	SnCl₄		3	Wikipedia	NIST
LiBH4	LiBH₄			Wikipedia	NIST
LiBr	LiBr	10		Wikipedia	NIST
Librium				Wikipedia	NIST
LiCH3	LiCH₃	2	2	Wikipedia	NIST
LiCl	LiCl	8	1	Wikipedia	NIST
LiF	LiF	3		Wikipedia	NIST
Ligand, bidentate (AS/A2 generic)			2	Wikipedia
Ligand, multidentate (AS/A2 generic)			2	Wikipedia
Ligand, unidentate (AS/A2 generic)		2	1	Wikipedia
Light gasoline	Light Gasoline	2		Wikipedia	NIST
Light naphtha	Light Gasoline	2		Wikipedia	NIST
Light oil	Light Oil	1			NIST
LiH	LiH	2	3	Wikipedia	NIST
LiI	LiI	2	1	Wikipedia	NIST
Lime	CaO	7	6	Wikipedia	NIST
Lime water	Ca(OH)₂(aq)	2	1	Wikipedia	NIST
Limestone	Limestone			Wikipedia
(+/-) Limonene			1	Wikipedia	NIST
Linarite	(Pb,Cu)₂SO₄(OH)₂			Wikipedia
Lindlar catalyst	Pd + Pb on CaCO₃ ^{Lindlar Cat.}		1	Wikipedia	NIST
Linear alpha olefin		2		Wikipedia	NIST
Linear molecular shape, AX2 (generic)				Wikipedia
Linear molecular shape, AX2E3 (generic)				Wikipedia
Linear molecular shape, AX2E4 (generic)				Wikipedia
LiNH2	LiNH₂	2	1	Wikipedia	NIST
Linoleic acid	Linoleic Acid	4		Wikipedia	NIST
Linolenic acid	Linolenic Acid	1		Wikipedia	NIST
Linseed oil	Linseed Oil		1	Wikipedia
LiO2	LiO₂	2		Wikipedia	NIST
LiOH	LiOH	8	3	Wikipedia	NIST
Liquefied petroleum gas	LPG	1	1	Wikipedia	NIST
LiSH	LiSH	3			NIST
Lithal	LiAlH₄	3	31	Wikipedia	NIST
Lithiated biphenyl		1	1		NIST
Lithium	Li	6	35	Wikipedia	NIST
Lithium acetylacetone complex		1			NIST
Lithium acetylide	R–C≡C–Li	1			NIST
Lithium aluminium hydride	LiAlH₄	3	31	Wikipedia	NIST
Lithium amide	LiNH₂	2	1	Wikipedia	NIST
Lithium antimonide	Li₃Sb	2	1		NIST
Lithium arsenide	Li₃As	2	1		NIST
Lithium benzide		2	2		NIST
Lithium bis(acetylacetone) complex		1			NIST
Lithium borohydride	LiBH₄			Wikipedia	NIST
Lithium bromide	LiBr	10		Wikipedia	NIST
Lithium carbide	LiC≡CLi	3	1	Wikipedia	NIST
Lithium chloride	LiCl	8	1	Wikipedia	NIST
Lithium diisopropylamide		1	1	Wikipedia	NIST
Lithium dimer	Li₂			Wikipedia	NIST
Lithium diorganocopper reagent (generic)	R₂CuLi	2	3
Lithium enolate (generic)		1		Wikipedia
Lithium family (generic)	Group Ia/1 Alkali Metals			Wikipedia
Lithium fluoride	LiF	3		Wikipedia	NIST
Lithium hydride	LiH	2	3	Wikipedia	NIST
Lithium hydridocarbide	R–C≡C–Li	1			NIST
Lithium hydrogen sulfide	LiSH	3			NIST
Lithium hydroxide	LiOH	8	3	Wikipedia	NIST
Lithium imide	LiNH₂	2			NIST
Lithium iodide	LiI	2	1	Wikipedia	NIST
Lithium ion	Li⁺	18	35		NIST
Lithium methanide in diethyl ether	LiCH₃	2	2	Wikipedia	NIST
Lithium nitride	Li₃N	2	1	Wikipedia	NIST
Lithium oxide	Li₂O	4	1	Wikipedia	NIST
Lithium peroxide	Li₂O₂	2		Wikipedia	NIST
Lithium phosphide	Li₃P	2			NIST
Lithium selenide	Li₂Se	2			NIST
Lithium stearate	CH₃(CH₂)₁₆COOLi			Wikipedia	NIST
Lithium stibnide	Li₃Sb	2	1		NIST
Lithium sulfide	Li₂S	2	1	Wikipedia	NIST
Lithium superoxide	LiO₂	2		Wikipedia	NIST
Lithium telluride	Li₂Te	2			NIST
Lithium tetrahydridoaluminate(III)	LiAlH₄	3	31	Wikipedia	NIST
Lithium tri-tert-butoxy aluminium hydride	Li[Al(O^tBu)₃H] ^{1.0M in THF}		1		NIST
Lithium, 2-norbornyl			2		NIST
Lithium, organo (generic)	RLi	2	4
Litmus	Litmus			Wikipedia	NIST
Livermorium	Lv			Wikipedia	NIST
Lobe-HOMO Lewis base (generic)			6
Lobe-LUMO Lewis acid (generic)			4
Lodestone	FeO.Fe₂O₃	1	2	Wikipedia	NIST
Loose ion piar (generic)
LPG	LPG	1	1	Wikipedia	NIST
Lr	Lr			Wikipedia	NIST
LSD				Wikipedia	NIST
Lu	Lu			Wikipedia	NIST
Lu2O3	Lu₂O₃			Wikipedia	NIST
LuBr3	LuBr₃				NIST
Lubricating oil	Mineral Oil	1		Wikipedia	NIST
Lucite		1		Wikipedia	NIST
LuCl3	LuCl₃				NIST
LuF3	LuF₃				NIST
LuI3	LuI₃				NIST
Lutetium	Lu			Wikipedia	NIST
Lutetium bromide	LuBr₃				NIST
Lutetium chloride	LuCl₃				NIST
Lutetium fluoride	LuF₃				NIST
Lutetium iodide	LuI₃				NIST
Lutetium oxide	Lu₂O₃			Wikipedia	NIST
Lv	Lv			Wikipedia	NIST
Lye	NaOH/KOH			Wikipedia	NIST
Lys		1	4	Wikipedia	NIST
Lys-Lys	Lys-Lys	1			NIST
D-Lysergic acid diethylamide				Wikipedia	NIST
Lysine		1	4	Wikipedia	NIST
Lysine, deprotonated		1	1	Wikipedia	NIST
Lysine, doubly-protonated		2		Wikipedia	NIST
Lysine, protonated		1	1	Wikipedia	NIST
Lysyllysine	Lys-Lys	1			NIST
D-Lyxose		1	1	Wikipedia	NIST
M (methionine)		1	1	Wikipedia	NIST
M(II) aqueous ion (AS/A2 generic)		1	1
M(III) aqueous ion (AS/A2 generic)		1	1
Magic acid	H⁺[SbF₆]^– .SO₃			Wikipedia	NIST
Magic Acid®	H⁺[SbF₆]^– .SO₃			Wikipedia	NIST
Magnalium	Al-Mg			Wikipedia	NIST
Magnesia	MgO	8	7	Wikipedia	NIST
Magnesite	MgCO₃			Wikipedia
Magnesium	Mg	3	29	Wikipedia	NIST
Magnesium 23	²³Mg	1		Wikipedia	NIST
Magnesium 24	²⁴Mg	2		Wikipedia	NIST
Magnesium acetylide	MgC₂	3	1		NIST
Magnesium amide	Mg(NH₂)₂	2			NIST
Magnesium bromide	MgBr₂	2		Wikipedia	NIST
Magnesium carbide	MgC₂	3	1		NIST
Magnesium carbonate	MgCO₃	1	1	Wikipedia	NIST
Magnesium chloride	MgCl₂	8	3	Wikipedia	NIST
Magnesium diboride	MgB₂	1		Wikipedia	NIST
Magnesium fluoride	MgF₂	3		Wikipedia	NIST
Magnesium hexahydroiron(II) complex	Mg₂FeH₆	1			NIST
Magnesium hydride	MgH₂	2	2		NIST
Magnesium hydroxide	Mg(OH)₂	6	5	Wikipedia	NIST
Magnesium iodide	MgI₂	2		Wikipedia	NIST
Magnesium ion	Mg²⁺	11	26		NIST
Magnesium nickel hydride	Mg₂NiH₄	1			NIST
Magnesium nitrate hexahydrate	Mg(NO₃)₂ .6H₂O	1		Wikipedia	NIST
Magnesium nitride	Mg₃N₂	3	1	Wikipedia	NIST
Magnesium oxalate	MgC₂O₄ .H₂O	1			NIST
Magnesium oxide	MgO	8	7	Wikipedia	NIST
Magnesium pentahydrocobalt(I) complex	Mg₂CoH₅	1			NIST
Magnesium phosphide	Mg₃P₂	2			NIST
Magnesium selenide	MgSe	2			NIST
Magnesium silicide	Mg₂Si	1	1	Wikipedia	NIST
Magnesium sulfate	MgSO₄	2	2	Wikipedia	NIST
Magnesium sulfate septahydrate	MgSO₄ .7H₂O	1		Wikipedia	NIST
Magnesium sulfide	MgS	3		Wikipedia	NIST
Magnesium sulphide	MgS	3		Wikipedia	NIST
Magnesium telluride	MgTe	2			NIST
Magnesium tetrahydronickle(II) complex	Mg₂NiH₄	1			NIST
Magnet, neodymium	Nd₂Fe₁₄B			Wikipedia	NIST
Magnetite	FeO.Fe₂O₃	1	2	Wikipedia	NIST
Magnetite	Fe₃O₄	1	1	Wikipedia
Magnogene	MgCl₂	8	3	Wikipedia	NIST
Main group element (generic)	Main Group Element			Wikipedia
Major tranquilliser (generic)	Major Tranquilliser
Malachite	CuCO₃. Cu(OH)₂			Wikipedia	NIST
Malachite	CuCO₃ .Cu(OH)₂		1	Wikipedia
Malate dehydrogenase	Malate Dehydrogenase		1	Wikipedia
Maleic acid		1	2	Wikipedia	NIST
Maleic acid dianion			1		NIST
Maleic acid monoanion		1	1		NIST
Maleic anhydride		4	8	Wikipedia	NIST
Malic acid (D/L)		1		Wikipedia	NIST
L(-)-Malic acid		1	1	Wikipedia	NIST
Malonate (hydrogen) ion		1	1		NIST
Malonate dianion			1		NIST
Malonate diester (generic)		1
Malonate, diethyl isopropyl		1			NIST
Malonic acid		2	2	Wikipedia	NIST
Malonic diester carbanion (generic)			1	Wikipedia
Malononitrile	(CN)₂CH₂	1		Wikipedia	NIST
Malononitrile anion	[(CN)₂CH]^–		1	Wikipedia	NIST
Malonyl chloride		2			NIST
Malonyl dichloride		2			NIST
Malonylurea			1	Wikipedia	NIST
Malt sugar	Maltose			Wikipedia	NIST
Maltose	Maltose			Wikipedia	NIST
Mandalate ion			1		NIST
(+/-) Mandelic acid		1		Wikipedia	NIST
Manganate(V) ion	[MnO₄]^3–		1		NIST
Manganate(VI) ion	[MnO₄]^2–		2	Wikipedia	NIST
Manganate(VII) ion	[MnO₄]^–	2	14		NIST
Manganese	Mn	4		Wikipedia	NIST
Manganese bronze	Manganese Bronze				NIST
Manganese dioxide	MnO₂	3	4	Wikipedia	NIST
Manganese family (generic)	Grou VIIb/7 Manganese Family			Wikipedia
Manganese group metal (generic)	Grou VIIb/7 Manganese Family			Wikipedia
Manganese monoxide	MnO			Wikipedia	NIST
Manganese oxide	Mn₃O₄		1		NIST
Manganese sesquioxide	Mn₂O₃				NIST
Manganese sulfide	MnS	1			NIST
Manganese(II) bromide	MnBr₂				NIST
Manganese(II) carbonate	MnCO₃	1		Wikipedia	NIST
Manganese(II) chloride	MnCl₂	1			NIST
Manganese(II) fluoride	MnF₂				NIST
Manganese(II) hexahydrated ion	[Mn(H₂O)₆]²⁺	5			NIST
Manganese(II) hydroxide	Mn(OH)₂	1			NIST
Manganese(II) iodide	MnI₂				NIST
Manganese(II) ion	Mg²⁺	8	8		NIST
Manganese(II) oxide	MnO			Wikipedia	NIST
Manganese(II) tungstate	MnWO₄	1			NIST
Manganese (II, III) oxide	Mn₃O₄		1		NIST
Manganese(III) fluoride	MnF₃			Wikipedia	NIST
Manganese(III) ion	Mn³⁺	1	1		NIST
Manganese(III) oxide	Mn₂O₃				NIST
Manganese(IV) fluoride	MnF₄				NIST
Manganese(IV) ion	Mn⁴⁺				NIST
Manganese(IV) oxide	MnO₂	3	4	Wikipedia	NIST
Manganese(VII) ion	Mn⁷⁺				NIST
Manganese(VII) oxide	Mn₂O₇			Wikipedia	NIST
Manganite	MnO(OH)			Wikipedia
Manganomanganic oxide	Mn₃O₄		1		NIST
D-Mannose		2		Wikipedia	NIST
Marcasite	FeS₂ ^pyrite		2	Wikipedia
Margarine, hard	Hard Margarine	1		Wikipedia	NIST
Margarine, soft	Soft Margarine	1		Wikipedia	NIST
Marialite	Ca₄Al₆Si₆ O₂₄CO₃			Wikipedia
Marsh gas	CH₄	14	32	Wikipedia	NIST
Material type (generic)	Material Type
Mc	Mc			Wikipedia	NIST
MCPBA			3	Wikipedia	NIST
Md	Md			Wikipedia	NIST
MDC	CH₂Cl₂	6	3	Wikipedia	NIST
Me2N	(CH₃)₂NH	4	3	Wikipedia	NIST
Me2NCHO		2	2	Wikipedia	NIST
[Me2N]-	[(CH₃)₂N]^–		1		NIST
Me2O			3	Wikipedia	NIST
Me2S	(CH₃)₂S	1	2		NIST
Me2SO		3	5	Wikipedia	NIST
Me3B	(CH₃)₃B	1			NIST
Me3COH	(CH₃)₃COH	7	11	Wikipedia	NIST
Me3N	(CH₃)₃N	7	3	Wikipedia	NIST
Me3N	(CH₃CH₂)₃N		1	Wikipedia	NIST
[Me3NH]+	[(CH₃)₃NH]⁺	2			NIST
[Me3O]+	[(CH₃)₃O]⁺				NIST
Me3P	(CH₃)₃P	1	1	Wikipedia	NIST
[Me3Si]+	[(CH₃)₃Si]⁺				NIST
[Me3S]+	[(CH₃)₃S]⁺				NIST
Me4C			1	Wikipedia	NIST
[Me4N]+	[(CH₃)₄N]⁺	2	3		NIST
MeBr	CH₃Br	3	3	Wikipedia	NIST
MeCHO	CH₃CHO	13	20	Wikipedia	NIST
MeCl	CH₃Cl	8	4	Wikipedia	NIST
MeCN	CH₃CN	6	5	Wikipedia	NIST
MeCOEt		4	2	Wikipedia	NIST
MeCOMe		15	19	Wikipedia	NIST
[MeCOO]-	[CH₃COO]^–	6	10	Wikipedia	NIST
MeF	CH₃F	1		Wikipedia	NIST
Meionite	Ca₄Al₆Si₆ O₂₄CO₃			Wikipedia
Meitnerium	Mt			Wikipedia	NIST
MEK		4	2	Wikipedia	NIST
Melamine		2	1	Wikipedia	NIST
Melamine resin	Melamine Resin	1		Wikipedia	NIST
MeMgI	CH₃MgI	2	3	Wikipedia	NIST
MeNCO	CH₃–N=C=O		1	Wikipedia	NIST
Mendelevium	Md			Wikipedia	NIST
MeNH2	CH₃NH₂	2	9	Wikipedia	NIST
[MeNH]-	[CH₃–NH]^–		1		NIST
MeNO2	CH₃–NO₂	1	2	Wikipedia	NIST
Menthol				Wikipedia	NIST
MeOH	CH₃OH	19	31	Wikipedia	NIST
[MeO]-	[CH₃–O]^–	1	3	Wikipedia	NIST
MEP		2	1		NIST
Meperidine hydrochloride				Wikipedia	NIST
Mercaptan (generic)	R–SH	2	2
2-Mercaptoethanol		1			NIST
Mercuric chloride	HgCl₂	2	1	Wikipedia	NIST
Mercuric ion	Hg²⁺		9		NIST
Mercuric nitrate	Hg(NO₃)₂	1	1	Wikipedia	NIST
Mercuric sulfate	HgSO₄	1	3	Wikipedia	NIST
Mercuric sulfide	HgS	1		Wikipedia	NIST
Mercurous bromide	Hg₂Br₂	1			NIST
Mercurous chloride	Hg₂Cl₂	1	1	Wikipedia	NIST
Mercurous iodide	Hg₂I₂	1			NIST
Mercurous ion	Hg₂³⁺	1	5		NIST
Mercurous sulfide	Hg₂S	1			NIST
Mercury	Hg	4	1	Wikipedia	NIST
Mercury(I) bromide	Hg₂Br₂	1			NIST
Mercury(I) chloride	Hg₂Cl₂	1	1	Wikipedia	NIST
Mercury(I) fluoride	Hg₂F₂				NIST
Mercury(I) iodide	Hg₂I₂	1			NIST
Mercury(I) ion	Hg₂³⁺	1	5		NIST
Mercury(I) oxide	Hg₂O				NIST
Mercury(I) sulfide	Hg₂S	1			NIST
Mercury(II) acetate	Hg(OCOCH₃)₂	1		Wikipedia	NIST
Mercury(II) bromide	HgBr₂				NIST
Mercury(II) chloride	HgCl₂	2	1	Wikipedia	NIST
Mercury(II) fluoride	HgF₂			Wikipedia	NIST
Mercury(II) fulminate	Hg(ONC)₂	2		Wikipedia	NIST
Mercury(II) iodide	HgI₂			Wikipedia	NIST
Mercury(II) ion	Hg²⁺		9		NIST
Mercury(II) nitrate	Hg(NO₃)₂	1	1	Wikipedia	NIST
Mercury(II) oxide	HgO	2	2	Wikipedia	NIST
Mercury(II) sulfate	HgSO₄	1	3	Wikipedia	NIST
Mercury(II) sulfide	HgS	1		Wikipedia	NIST
Mescaline				Wikipedia	NIST
MeSCN	N≡C–S–CH₃	1			NIST
MeSH	CH₃–SH	1	1		NIST
Mesityl oxide		1	1	Wikipedia	NIST
Mesitylene		1		Wikipedia	NIST
MeSMe	(CH₃)₂S	1	2		NIST
MeSOMe		3	5	Wikipedia	NIST
[MeSS]-	[CH₃–S]^–		1		NIST
Met		1	1	Wikipedia	NIST
Metaautunite	Cu(UO₂)₂(PO₄)₂ .8-12H₂O			Wikipedia
Metaborate ion	[BO₂]^– [B₃O₆]^3–		2	Wikipedia	NIST
Metaboric acid	HBO₂	2	1	Wikipedia	NIST
Metal (generic)	M		1
Metal cation (AS/A2 generic)			3	Wikipedia
Metal cation (generic)	M⁽ⁿ⁾⁺	1
Metallic alloy (generic)	Alloy			Wikipedia
Metallic element (generic)	Metallic			Wikipedia
Metaperiodic acid	HIO₄	2	1	Wikipedia	NIST
Metatorbernite	Cu(UO₂)₂(PO₄)₂ .8-12H₂O			Wikipedia
Metatyuyamunite	Ca(UO₂)₂(VO₄)₂ .5-10H₂O			Wikipedia
Methacrylein		2	3		NIST
Methacrylic acid		1	1	Wikipedia	NIST
Methadone hydrochloride				Wikipedia	NIST
Methanal	HCHO	6	25	Wikipedia	NIST
Methanamide	HCONH₂	2	2	Wikipedia	NIST
Methane	CH₄	14	32	Wikipedia	NIST
Methane thiol	CH₃–SH	1	1		NIST
Methane, protonated	[CH₅]⁺	2		Wikipedia	NIST
Methanediol		1	1	Wikipedia	NIST
Methanide ion	C^4–		2	Wikipedia	NIST
Methanium ion	[CH₅]⁺	2		Wikipedia	NIST
Methanoate ester (generic)	HCOOR	1
Methanoate ion	[HCOO]^–		1	Wikipedia	NIST
Methanoic acid	HCOOH	7	2	Wikipedia	NIST
Methanol	CH₃OH	19	31	Wikipedia	NIST
Methanol hydrogen bonded dimer		1			NIST
Methanol synthesis gas	CO + 2H₂		1		NIST
Protonated methanol		1			NIST
Methanoyl cation		1	2		NIST
Methanoyl chloride		1			NIST
Methenamine		1	2	Wikipedia	NIST
Methionine		1	1	Wikipedia	NIST
Methionine, deprotonated			1	Wikipedia	NIST
Methionine, protonated		1		Wikipedia	NIST
Methonium ion	[CH₅]⁺	2		Wikipedia	NIST
Methoxide ion	[CH₃–O]^–	1	3	Wikipedia	NIST
1-Methoxy-1,4-cyclohexadiene		1	1		NIST
1-Methoxy-1,3-butadiene			2		NIST
1-Methoxy-2-(2-propenoxy)benzene			1		NIST
2-Methoxy-2-methylpropane		1		Wikipedia	NIST
3-Methoxy-4,4- diethoxy cyclohexene		1			NIST
3-Methoxy-4-cyanocyclohexene		1			NIST
3-Methoxy-4-hydroxybenzaldehyde				Wikipedia	NIST
1-Methoxy-4-propenylbenzene				Wikipedia	NIST
2-Methoxy-4-propenylphenol					NIST
3-Methoxy-5-cyanocyclohexene		1			NIST
2-Methoxy-6-(2-propenyl)phenol		1			NIST
Methoxyacetate ion			1		NIST
Methoxyacetic acid		1			NIST
Methoxybenzene			2	Wikipedia	NIST
Methyl 1-methoxycarbonylcyclobutanecarboxylate		1			NIST
Methyl 2,2-dimethylpropanoate					NIST
Methyl 2,7,9-undecatrienoate			1		NIST
Methyl 2-methylbutanoate					NIST
Methyl 4-methylbicyclo[4.3.0]oct-2-enyl-5-acetate		1			NIST
(2R)-2-Methyl alpha-lactone		1	1		NIST
Methyl acetate			2	Wikipedia	NIST
Methyl acrylate		4		Wikipedia	NIST
Methyl alcohol	CH₃OH	19	31	Wikipedia	NIST
Methyl alkyl carbenium ion (generic)		1	4
Methyl allene		1		Wikipedia	NIST
Methyl aminoethanoate		1			NIST
N-Methyl aniline				Wikipedia	NIST
Methyl anion	[CH₃]^–		12	Wikipedia	NIST
Methyl borate	B(OCH₃)₃	2	1	Wikipedia	NIST
Methyl bromide	CH₃Br	3	3	Wikipedia	NIST
Methyl tertiary butyl ketone		1	1	Wikipedia	NIST
4-Methyl-2,6-di-tert-butyl pryidinium ion		1			NIST
Methyl carbenium ion	[CH₃CH₂]⁺	3	10		NIST
Methyl carbenium ion synthon (generic)	CH₃–Nfg	1
Methyl cation	[CH₃]⁺	2	9		NIST
Methyl chloride	CH₃Cl	8	4	Wikipedia	NIST
Methyl chloroformate	ClCOOCH₃		1		NIST
Methyl cyclopropyl-Nfg complex (generic)		1
Methyl dichloroacetate			1		NIST
Methyl ester (generic)		4	2
Methyl ethanoate			2	Wikipedia	NIST
Methyl ether			3	Wikipedia	NIST
Methyl ethyl ketone		4	2	Wikipedia	NIST
Methyl fluoride	CH₃F	1		Wikipedia	NIST
N-Methyl formamide		2			NIST
Methyl formate		2	5	Wikipedia	NIST
Methyl glycine		1			NIST
Methyl group (generic)	R–CH₃	8
Methyl iodide	CH₃I	4	12	Wikipedia	NIST
Methyl iodide dimer		1		Wikipedia	NIST
Methyl iodide/Argon complex		1			NIST
Methyl isobutyl ketone		1		Wikipedia	NIST
Methyl isocyanate	CH₃–N=C=O		1	Wikipedia	NIST
Methyl ketone (generic)		3	1
Methyl ketone enolate ion (generic)			3	Wikipedia
alpha-Methyl ketone (generic)		1
Methyl lithium in diethyl ether	LiCH₃	2	2	Wikipedia	NIST
Methyl lithium/Tetramethylethylenediamine complex					NIST
Methyl magnesium iodide	CH₃MgI	2	3	Wikipedia	NIST
Methyl mercaptan	CH₃–SH	1	1		NIST
Methyl methane	CH₃CH₃	5	3	Wikipedia	NIST
Methyl methanoate		2	5	Wikipedia	NIST
Methyl nitranion	[CH₃–NH]^–		1		NIST
Methyl exo-norbornate		1			NIST
Methyl orange	Methyl Orange			Wikipedia	NIST
Methyl phenyl ketone		3	2	Wikipedia	NIST
Methyl pivalate					NIST
2-Methyl propenal		2	3		NIST
Methyl propenoate		4		Wikipedia	NIST
2-Methyl propyl radical	(CH₃)₃C•	1			NIST
2-Methylpyridine		3	1	Wikipedia	NIST
3-Methyl pyridine		1	1		NIST
4-Methyl pyridine		2			NIST
Methyl radical	CH₃•	8	8		NIST
Methyl red	Methyl Red			Wikipedia	NIST
Methyl rhodanate	N≡C–S–CH₃	1			NIST
Methyl tert-butyl ether		1		Wikipedia	NIST
Methyl thiocarbanion (generic)	[R–S–CH₂]^–	1	1
Methyl thiocyanate	N≡C–S–CH₃	1			NIST
Methyl thioether	(CH₃)₂S	1	2		NIST
Methyl thioether (generic)	R–S–CH₃	3	1
Methyl tosylate			1		NIST
Methyl trimethylacetate					NIST
2-Methyl-1,3-butadiene		4	3	Wikipedia	NIST
2-Methyl-1-butene		1	4		NIST
3-Methyl-1-butene		1			NIST
1-Methyl-2-(3-pyridyl)pyrrolidine			1	Wikipedia	NIST
2-Methyl-2-butene		1	2		NIST
2-Methyl-2-butene		2			NIST
E-2-Methyl-2-butenenitrile		1			NIST
Z-2-Methyl-2-butenenitrile		1			NIST
(2-Methyl-2-butyl)hydrogen sulfate		1	1		NIST
(2-Methyl-2-butyl)hydrogen sulphate		1	1		NIST
2-Methyl-2-isonitrile propane		1		Wikipedia	NIST
5-Methyl-2-isopropylphenol				Wikipedia	NIST
4-Methyl-2-pentanone		1		Wikipedia	NIST
2-Methyl-2-propen-1-ol		2			NIST
1-Methyl-2-pyrrolidinone		1		Wikipedia	NIST
2-Methyl-3-butene-2-ol		1	1		NIST
2-Methyl-3-butyne-2-ol		1	1		NIST
(3R)-3-Methyl-3-hexanol		1			NIST
(3S)-3-Methyl-3-hexanol		1			NIST
4-Methyl-3-penten-2-one		1	1	Wikipedia	NIST
1-Methyl-4-(1-methylethenyl) -1,4-cyclohexadiene		1			NIST
(+/-)1-Methyl-4-(1-methylethenyl)cyclohexene			1	Wikipedia	NIST
2-Methyl-5-(1-methylethenyl)-2-cyclohexanol		2			NIST
2-Methyl-5-(1-methylethenyl)-2-cyclohexenol		2			NIST
2-Methyl-5-(1-methylethenyl)-2-cyclohexenone			2		NIST
Methyl-Nfg complex (generic)	CH₃–Nfg	1
N-Methylacetamide		2			NIST
Methylacetylene	CH₃–C≡C–H		1	Wikipedia	NIST
Methylamide anion	[CH₃–NH]^–		1		NIST
Methylamine	CH₃NH₂	2	9	Wikipedia	NIST
Methylammonium ion	[CH₃NH₃]⁺	4			NIST
Methylbenzene		6	16	Wikipedia	NIST
alpha-Methylbenzyl alcohol		1	1		NIST
alpha-Methylbenzyl bromide		1	1		NIST
alpha-Methylbenzylamine		1			NIST
2-Methylbut-1-ene		1	4		NIST
3-Methylbut-1-ene		1			NIST
2-Methylbut-2-ene		2			NIST
E-2-Methylbut-2-enenitrile		1			NIST
Z-2-Methylbut-2-enenitrile		1			NIST
2-Methylbutan-2-ol		1			NIST
3-Methylbutan-2-ol			1		NIST
Methylbutenol		1	1		NIST
2-Methylbutyl carbocation		1	1		NIST
2-Methylbutyl-2-ium ion		1		Wikipedia	NIST
Methylbutynol		1	1		NIST
Methylchloroform	CH₃CCl₃	1		Wikipedia	NIST
Methylcyclohexane			1	Wikipedia	NIST
Methyldiphenyl phosphine					NIST
Methylene	CH₂	3	10	Wikipedia	NIST
Methylene cyanide	(CN)₂CH₂	1		Wikipedia	NIST
Methylene dichloride	CH₂Cl₂	6	3	Wikipedia	NIST
Methylene function (generic)		5	2
Methylene iodide	CH₂I₂		2		NIST
1,2-Methylenebenenzene		1			NIST
Methylenecyclohexane oxide		1			NIST
N-Methylethanamide		2			NIST
Methylidenecyclopropane			1		NIST
Methylium ion	[CH₃]⁺	2	9		NIST
Methylmethacrylate		2	1		NIST
Methylmorphine				Wikipedia	NIST
Methyloxonium ion		1			NIST
4-Methylpentan-2-one		1		Wikipedia	NIST
N-(2-Methylphenyl)alkanamide (generic)			1
dl-a-Methylphenylethylamine				Wikipedia	NIST
Methylphenylsulfinate		1			NIST
Methylphenylsulfone		1			NIST
Methylphosphonofloridic acid 1,2,2-trimethylpropyl ester				Wikipedia	NIST
2-Methylpiperidine		1			NIST
2-Methylprop-2-ylium ion		2	10		NIST
2-Methylpropan-1-amine		1			NIST
2-Methylpropan-1-ol		4	1	Wikipedia	NIST
2-Methylpropan-2-ide anion	[(CH₃)₃C]^–		6	Wikipedia	NIST
2-Methylpropan-2-ol	(CH₃)₃COH	7	11	Wikipedia	NIST
2-Methylpropanal		3	2	Wikipedia	NIST
2-Methylpropane		3	4	Wikipedia	NIST
2-Methylpropanonic acid		1			NIST
2-Methylpropene		9	12	Wikipedia	NIST
2-Methylpropenoic acid		1	1	Wikipedia	NIST
2-Methylpropionitrile		1	1		NIST
2-Methylpropionaldehyde		3	2	Wikipedia	NIST
2-Methylpropyl anion	[(CH₃)₃C]^–		6	Wikipedia	NIST
2-Methylpropyl carbocation		2	10		NIST
2-Methylpropyl-2-alkoxide	[(CH₃)₃C–O]^–	1	2		NIST
2-Methylpyridinium ion		1			NIST
N-Methylpyrrolidone		1		Wikipedia	NIST
Methylsulfonium ion	[CH₃–SH₂]⁺	2			NIST
Methylsulfonyl acetate ion			1		NIST
Methylsulfonyl acetic acid		1			NIST
Methylsulfoxide		3	5	Wikipedia	NIST
Methylthioacetate ion			1		NIST
Methylthioacetic acid		1			NIST
Methylthioanion	[CH₃–S]^–		1		NIST
Methyltoluene sulfonate, para			1		NIST
Methyltrichlorosilane	CH₃SiCl₃		1	Wikipedia	NIST
Methyltriethylammonium ion		1			NIST
5-Methyluracil	Thymine T		1	Wikipedia	NIST
Methyne function (generic)		1	1
2-Methyoxyethyl ether			2	Wikipedia	NIST
Mg	Mg	3	29	Wikipedia	NIST
Mg(NH2)2	Mg(NH₂)₂	2			NIST
Mg(NO3)2.6H2O	Mg(NO₃)₂ .6H₂O	1		Wikipedia	NIST
Mg(OH)2	Mg(OH)₂	6	5	Wikipedia	NIST
Mg2+	Mg²⁺	11	26		NIST
Mg2C	MgC₂	3	1		NIST
Mg2CoH5	Mg₂CoH₅	1			NIST
Mg2FeH6	Mg₂FeH₆	1			NIST
Mg2NiH4	Mg₂NiH₄	1			NIST
Mg2Si	Mg₂Si	1	1	Wikipedia	NIST
Mg3N2	Mg₃N₂	3	1	Wikipedia	NIST
Mg3P2	Mg₃P₂	2			NIST
MgB2	MgB₂	1		Wikipedia	NIST
MgBr2	MgBr₂	2		Wikipedia	NIST
MgC2O4	MgC₂O₄ .H₂O	1			NIST
MgCl2	MgCl₂	8	3	Wikipedia	NIST
MgCO3	MgCO₃	1	1	Wikipedia	NIST
MgF2	MgF₂	3		Wikipedia	NIST
MgH2	MgH₂	2	2		NIST
MgI2	MgI₂	2		Wikipedia	NIST
MgO	MgO	8	7	Wikipedia	NIST
MgS	MgS	3		Wikipedia	NIST
MgSe	MgSe	2			NIST
MgSO4	MgSO₄ .7H₂O	1		Wikipedia	NIST
MgSO4	MgSO₄	2	2	Wikipedia	NIST
MgSO4.7H2O	MgSO₄ .7H₂O	1		Wikipedia	NIST
MgTe	MgTe	2			NIST
Miazine				Wikipedia	NIST
MIBK		1		Wikipedia	NIST
Microcline	KAlSi₃O₈			Wikipedia
Microlite	(Ca,Na)₂Ta₂O₆ (O,OH,F)			Wikipedia
Milk	Milk			Wikipedia
Milk of lime	Ca(OH)₂(aq)	2	1	Wikipedia	NIST
Milk sugar	Lactose			Wikipedia	NIST
Millerite	NiS			Wikipedia
Mimetite	Pb₅(AsO₄)₃Cl			Wikipedia
Mineral (generic)	Mineral
Mineral oil	Mineral Oil	1		Wikipedia	NIST
Mineral wool	Rock Fiber			Wikipedia
Minium	Pb₃O₄			Wikipedia	NIST
Minor tranquilliser (generic)	Minor Tranquilliser			Wikipedia
MIPA	(CH₃)₂CHNH₂	1		Wikipedia	NIST
Miscellaneous oxidising agent (generic)
Miscellaneous reducing agent (generic)
Mischmetal	Mischmetal			Wikipedia	NIST
Mispickel	FeAsS		1	Wikipedia
Mn	Mn	4		Wikipedia	NIST
[Mn(H2O)6]2+	[Mn(H₂O)₆]²⁺	5			NIST
Mn(OH)2	Mn(OH)₂	1			NIST
Mn2(CO)10	Mn₂(CO)₁₀			Wikipedia	NIST
Mn2+	Mg²⁺	8	8		NIST
Mn2O3	Mn₂O₃				NIST
Mn2O7	Mn₂O₇			Wikipedia	NIST
Mn3+	Mn³⁺	1	1		NIST
Mn3O4	Mn₃O₄		1		NIST
Mn4+	Mn⁴⁺				NIST
Mn7+	Mn⁷⁺				NIST
MnBr2	MnBr₂				NIST
MnCl2	MnCl₂	1			NIST
MnCO3	MnCO₃	1		Wikipedia	NIST
MnF2	MnF₂				NIST
MnF3	MnF₃			Wikipedia	NIST
MnF4	MnF₄				NIST
MnI2	MnI₂				NIST
MnO	MnO			Wikipedia	NIST
MnO2	MnO₂	3	4	Wikipedia	NIST
[MnO4]-	[MnO₄]^–	2	14		NIST
[MnO4]2-	[MnO₄]^2–		2	Wikipedia	NIST
[MnO4]3-	[MnO₄]^3–		1		NIST
MnS	MnS	1			NIST
MnWO4	MnWO₄	1			NIST
Mo	Mo			Wikipedia	NIST
Mo2O5	Mo₂O₅				NIST
Mo3+	Mo³⁺				NIST
Mo4+	Mo⁴⁺		1		NIST
Mo6+	Mo⁶⁺				NIST
MoBr2	MoBr₂ [Mo₆Br₈]Br₄				NIST
MoBr3	MoBr₃				NIST
MoBr4	MoBr₄				NIST
MoCl2	MoCl₂ [Mo₆Cl₈]Cl₄			Wikipedia	NIST
MoCl3	MoCl₃				NIST
MoCl4	MoCl₄				NIST
MoCl5	MoCl₅			Wikipedia	NIST
MoF3	MoF₃				NIST
MoF4	MoF₄				NIST
MoF5	MoF₅				NIST
MoF6	MoF₆				NIST
Mogadon				Wikipedia	NIST
MoI2	MoI₂ [Mo₆I₈]I₄				NIST
MoI3	MoI₃				NIST
Molecular cation (generic)	M⁽ⁿ⁾⁺	1
Molecular ionic material (generic)	Molecular or Complex Salt
Molecular material (generic)	Molecular			Wikipedia
Molecular Shape Recognition Complex (generic)		1
Molecule (generic)	M		1
Molybdenite	MoS₂			Wikipedia
Molybdenum	Mo			Wikipedia	NIST
Molybdenum disulfide	MoS₂	1		Wikipedia	NIST
Molybdenum(II) bromide	MoBr₂ [Mo₆Br₈]Br₄				NIST
Molybdenum(II) chloride	MoCl₂ [Mo₆Cl₈]Cl₄			Wikipedia	NIST
Molybdenum(II) iodide	MoI₂ [Mo₆I₈]I₄				NIST
Molybdenum(III) bromide	MoBr₃				NIST
Molybdenum(III) chloride	MoCl₃				NIST
Molybdenum(III) fluoride	MoF₃				NIST
Molybdenum(III) iodide	MoI₃				NIST
Molybdenum(III) ion	Mo³⁺				NIST
Molybdenum(IV) bromide	MoBr₄				NIST
Molybdenum(IV) chloride	MoCl₄				NIST
MolybdenumIV) fluoride	MoF₄				NIST
Molybdenum(IV) ion	Mo⁴⁺		1		NIST
Molybdenum(IV) oxide	MoO₂			Wikipedia	NIST
Molybdenum(IV) sulfide	MoS₂	1		Wikipedia	NIST
Molybdenum(V) chloride	MoCl₅			Wikipedia	NIST
Molybdenum(V) fluoride	MoF₅				NIST
Molybdenum(V) oxide	Mo₂O₅				NIST
Molybdenum(VI) fluoride	MoF₆				NIST
Molybdenum(VI) ion	Mo⁶⁺				NIST
Molybdenum(VI) oxide	MoO₃			Wikipedia	NIST
Molybdic anhydride	MoO₃			Wikipedia	NIST
Monazite	(Ce,La,Th)PO₄			Wikipedia
Mono-bond type material (generic)				Wikipedia
Monochlorodifluoromethane	HCClF₂	1	1	Wikipedia	NIST
Monoisopropylamine	(CH₃)₂CHNH₂	1		Wikipedia	NIST
Monoprotic acid (AS/A2 generic)
Monotungsten carbide	WC	1		Wikipedia	NIST
Monticellite	Ca,MgSiO₄			Wikipedia
MoO2	MoO₂			Wikipedia	NIST
MoO3	MoO₃			Wikipedia	NIST
Mordant Yellow 1	Alizarin Yellow				NIST
Morphine			1	Wikipedia	NIST
Morphine 3-methyl ether				Wikipedia	NIST
MoS2	MoS₂	1		Wikipedia	NIST
Moscovium	Mc			Wikipedia	NIST
Moth balls		1	7	Wikipedia	NIST
Mother of Satan		1	1	Wikipedia	NIST
Mt	Mt			Wikipedia	NIST
MTBE		1		Wikipedia	NIST
Multidentate ligand (AS/A2 generic)			2	Wikipedia
Muon	μ			Wikipedia
Muon antineutrino	_— ν_μ			Wikipedia
Muon neutrino	ν_μ			Wikipedia
Muon, anti	_— μ		1	Wikipedia
Muonium		1		Wikipedia
Muriatic acid	HCl(conc)	2	9	Wikipedia	NIST
Muscovite	KAl₂(AlSi₃O₁₀) (F,OH)₂			Wikipedia
Mustard (generic)	R–S–CH₂CH₂Cl	1
Mustard gas	S(CH₂CH₂Cl)₂	1		Wikipedia	NIST
Mustard, nitrogen (generic)	R₂N–CH₂CH₂Cl	1
Myristic acid	CH₃(CH₂)₁₂COOH	2		Wikipedia	NIST
n		5	1	Wikipedia	NIST
N (asparagine)		1	1	Wikipedia	NIST
N(CH2)3N				Wikipedia	NIST
N-Alkyl aldimine (generic)				Wikipedia
N-Nitro (generic)	R₂N–NO₂
N-Nitrosomine (generic)	R₂N–NO	1	1
N2	N₂	56	20		NIST
N2O	N₂O	4	2	Wikipedia	NIST
[N2O2]2-	[N₂O₂]^2–				NIST
N2O3	N₂O₃	2	2	Wikipedia	NIST
N2O4	N₂O₄	2	6		NIST
N2O5	N₂O₅	2	4	Wikipedia	NIST
N2S2		1	1		NIST
N3-	N^3–		6	Wikipedia	NIST
N3CN	N≡C–N₃		1		NIST
[N3]-	[N₃]^–		5	Wikipedia	NIST
N5 Cation	[N₅]⁺		1		NIST
N5 hexafluoroarsinate	[N₅]⁺[AsF₆]^–	1			NIST
[N5]+	[N₅]⁺		1		NIST
[N=C=N]2-	[N=C=N]^–			Wikipedia	NIST
Na	Na	5	33	Wikipedia	NIST
Na+	Na⁺	62	65		NIST
Na2B4O7	Na₂B₄O₇	1	1	Wikipedia	NIST
Na2C2	NaCâ‰¡CNa	2			NIST
Na2CO3	Na₂CO₃	11	17	Wikipedia	NIST
Na2CO3.15H2O2	2Na₂CO₃.3H₂O₂			Wikipedia	NIST
Na2Cr2O7	Na₂Cr₂O₇ .H₂O	3	4	Wikipedia	NIST
Na2CrO4	Na₂CrO₄	2	2		NIST
Na2O	Na₂O	5	5	Wikipedia	NIST
Na2O2	Na₂O₂	3	7	Wikipedia	NIST
Na2S	Na₂S	4	3	Wikipedia	NIST
Na2S.9H2O	Na₂S.9H₂O	1		Wikipedia	NIST
Na2S2O3	Na₂S₂O₃	5	4	Wikipedia	NIST
Na2S2O4		5		Wikipedia	NIST
Na2S2O5		4	1		NIST
Na2S2O6		1		Wikipedia	NIST
Na2S2O8	Na₂S₂O₈	1			NIST
Na2S4O6	Na₂S₄O₆	2			NIST
Na2Se	Na₂Se	2			NIST
Na2SiF6	Na₂[SiF₆]	1	1		NIST
Na2SiO3(aq)	Na₂SiO₃ ^solution	2		Wikipedia	NIST
Na2SO3	Na₂SO₃	3	6	Wikipedia	NIST
Na2SO3.7H2O	Na₂SO₃ .7H₂O	1		Wikipedia	NIST
Na2SO4	Na₂SO₄	14	4	Wikipedia	NIST
Na2SO4	Na₂SO₄ .10H₂O			Wikipedia	NIST
Na2SO4.10H2O	Na₂SO₄ .10H₂O			Wikipedia	NIST
Na2Te	Na₂Te	2			NIST
Na3AlF6	Na₃AlF₆	3	2	Wikipedia	NIST
Na3As	Na₃As	2	1		NIST
Na3B3O6	NaBO₂ Na₃[B₃O₆]	4	1		NIST
Na3BO3	Na₃BO₃	1		Wikipedia	NIST
Na3P	Na₃P	2		Wikipedia	NIST
Na3PO4	Na₃PO₄	1		Wikipedia	NIST
Na3Sb	Na₃Sb	2	1		NIST
Na5P3O10		1		Wikipedia	NIST
NaAg(CN)2	Na[Ag(CN)₂]	2			NIST
NaAl(OH)4	Na[Al(OH)₄]	2	1		NIST
NaAlH4	NaAlH₄			Wikipedia	NIST
NaAlO2	NaAlO₂	1		Wikipedia	NIST
NaAu(CN)2	Na[Au(CN)₂]	2			NIST
NaBF4	NaBF₄	3			NIST
NaBH3CN	NaBH₃CN			Wikipedia	NIST
NaBH4	NaBH₄	3	18	Wikipedia	NIST
NaBO2	NaBO₂ Na₃[B₃O₆]	4	1		NIST
NaBr	NaBr	9	6	Wikipedia	NIST
NaBrO3	NaBrO₃	2	1	Wikipedia	NIST
NaCl	NaCl	42	12	Wikipedia	NIST
NaCl(aq)	Brine	1	1	Wikipedia	NIST
NaClO2	NaClO₂	4	1	Wikipedia	NIST
NaClO3	NaClO₃	4	5	Wikipedia	NIST
NaClO4	NaClO₄	2	2	Wikipedia	NIST
NaCN	NaCN	2	4	Wikipedia	NIST
NaF	NaF	6	1	Wikipedia	NIST
NaH	NaH	2	7	Wikipedia	NIST
NaHCO3	NaHCO₃	4	3	Wikipedia	NIST
NaHSO3	NaHSO₃	1		Wikipedia	NIST
NaHSO3	NaHSO₃	2		Wikipedia	NIST
NaI	NaI	6	5	Wikipedia	NIST
NaN3	NaN₃	3	2	Wikipedia	NIST
NaNH2	NaNH₂	2	3	Wikipedia	NIST
NaNO2	NaNO₂	7	3	Wikipedia	NIST
NaNO3	NaNO₃	6	6	Wikipedia	NIST
NaO2	NaO₂	2		Wikipedia	NIST
NaOCH3	NaOCH₃	2	4	Wikipedia	NIST
NaOCl	NaOCl(aq)	4	5	Wikipedia	NIST
NaOH	NaOH	17	61	Wikipedia	NIST
NaOH(aq)	NaOH(aq)	5	37	Wikipedia	NIST
Naphtha	Naphtha	2	6	Wikipedia	NIST
Naphthacene					NIST
Naphthalene		1	7	Wikipedia	NIST
Naphthalene radical anion		1			NIST
Naphthanthracene					NIST
Naphthene	Naphthene	1		Wikipedia	NIST
1-Naphthol			2		NIST
1-Naphthoxymethanoly chloride		1	1		NIST
1-Naphthyl N-methylcarbamate		2		Wikipedia	NIST
Narcotic Analgesic (generic)	Narcotic Analgesic			Wikipedia
NaSH	NaSH	3			NIST
Native silver	Ag _native			Wikipedia
Natrium	Na	5	33	Wikipedia	NIST
Natrolite	Na₂Al₂Si₃O₁₀ .2H₂O			Wikipedia
Natural gas	Natural Gas	1	5	Wikipedia	NIST
Natural gas liquid	LPG	1	1	Wikipedia	NIST
Natural Product	Natural Product
Natural Product, modified (generic)	Semi-synthetic
Natural rubber				Wikipedia
Naval Brass	Naval Brass				NIST
Nb	Nb			Wikipedia	NIST
Nb2O3	Nb₂O₃				NIST
Nb2O5	Nb₂O₅			Wikipedia	NIST
NbBr3	NbBr₃				NIST
NbBr5	NbBr₅				NIST
NbCl3	NbCl₃				NIST
NbCl5	NbCl₅			Wikipedia	NIST
NbF5	NbF₅ [NbF₅]₄				NIST
NbI3	NbI₃				NIST
NbI5	NbI₅				NIST
NbO	NbO				NIST
NbO2	NbO₂				NIST
NBR	Nitrile Rubber	1		Wikipedia	NIST
NBr3.6NH3	NBr₃.6NH₃				NIST
NBS				Wikipedia	NIST
nBuLi		2		Wikipedia	NIST
NCCH2CH2CN		4	2		NIST
NCCN	N≡C–C≡N	1	1	Wikipedia	NIST
NCl3	NCl₃	1	1	Wikipedia	NIST
[NCO]-	[NCO]^–	3	4	Wikipedia	NIST
Nd	Nd			Wikipedia	NIST
Nd2Fe14B	Nd₂Fe₁₄B			Wikipedia	NIST
Ne	Ne	1	1	Wikipedia	NIST
Neodymium	Nd			Wikipedia	NIST
Neodymium magnet	Nd₂Fe₁₄B			Wikipedia	NIST
Neodynium iron boride	Nd₂Fe₁₄B			Wikipedia	NIST
Neon	Ne	1	1	Wikipedia	NIST
Neon 20	²⁰Ne	2		Wikipedia	NIST
Neon family (generic)	Group VIIIa/18 Noble Gases			Wikipedia
Neonium ion	[NeH]⁺	1			NIST
Neopentane			1	Wikipedia	NIST
Neopentyl acid	(CH₃)₃C–COOH	1			NIST
Neopentyl bromide			1		NIST
Neopentyl cation		1	1		NIST
Neopentyl chloride		1	2		NIST
Neopentyl function (generic)
Neopentyl phenyl thioether		1			NIST
Neoprene		1		Wikipedia	NIST
Nepheline	(Na,K)AlSiO₄			Wikipedia
Neptunium	Np			Wikipedia	NIST
Neptunium 237	²³⁷Np	2	1	Wikipedia	NIST
Neptunium 238	²³⁸Np		1	Wikipedia	NIST
Neptunium 239	²³⁹Np	1	1	Wikipedia	NIST
Network covalent material (generic)	Network
Neutrino, anti electron		2	1	Wikipedia
Neutrino, anti muon	_— ν_μ			Wikipedia
Neutrino, anti tau	_— ν_τ			Wikipedia
Neutrino, electron		2		Wikipedia
Neutrino, muon	ν_μ			Wikipedia
Neutrino, tau	ν_τ			Wikipedia
Neutron		5	1	Wikipedia	NIST
NF3	NF₃			Wikipedia	NIST
Nfg- (generic)		20	12
Nfg-acyl complex (generic)		1	10
Nfg-1° alkyl complex (generic)	RCH₂–Nfg	1
Nfg-2° alkyl complex (generic)	(R)₂CH–Nfg	1
Nfg-3° alkyl complex (generic)	(R)₃C–Nfg	1
Nfg-alkyl complex (generic)	R–Nfg	1	7
Nfg-allylic complex (generic)		1
Nfg-benzyl complex (generic)		1	1
Nfg-alpha-ketone complex (generic)		1
Nfg-methyl complex (generic)	CH₃–Nfg	1
Nfg-methylcyclopropyl complex (generic)		1
Nfg-propargylic complex (generic)		1
Nfg: (generic)			1
NGL	LPG	1	1	Wikipedia	NIST
NH	NH	1		Wikipedia	NIST
Nh	Nh			Wikipedia
(NH2)2CO		4	5	Wikipedia	NIST
NH2CH2CH2NH2		2	4	Wikipedia	NIST
NH2CH2CH2OH		1	3	Wikipedia	NIST
NH2Cl	H₂NCl	1	3	Wikipedia	NIST
NH2CONHCONH2		1		Wikipedia	NIST
NH2NH2	H₂N–NH₂	5	11	Wikipedia	NIST
[NH2NH]-	[NH₂–NH]^–		1		NIST
NH2OH	H₂N–OH	1	7	Wikipedia	NIST
NH2SO3H	H₂NSO₃H	2		Wikipedia	NIST
[NH2SO3]-	[NH₂SO₃]^–		1		NIST
[NH2]+	[NH₂]⁺			Wikipedia	NIST
NH3	NH₃	48	115	Wikipedia	NIST
NH3(.880)	.880 NH₃		6	Wikipedia	NIST
NH3(aq)	NH₃(aq)	2	18	Wikipedia	NIST
(NH4)2CO3	(NH₄)₂CO₃		1	Wikipedia	NIST
(NH4)2S	(NH₄)₂S	1		Wikipedia	NIST
(NH4)2S2O3	(NH₄)₂S₂O₃	3			NIST
(NH4)2S2O8	(NH₄)₂S₂O₈	2	1		NIST
(NH4)2SO3	(NH₄)₂SO₃ .H₂O	2	1		NIST
(NH4)2SO4	(NH₄)₂SO₄	3	1	Wikipedia	NIST
NH4BF4	NH₄BF₄	1	1		NIST
NH4Br	NH₄Br	5		Wikipedia	NIST
NH4Cl	NH₄Cl	15	6	Wikipedia	NIST
NH4ClO4	NH₄ClO₄	2	2	Wikipedia	NIST
NH4F	NH₄F	1	1	Wikipedia	NIST
NH4H2F	[NH₄]⁺ [FHF]^–	1	1		NIST
NH4HS	NH₄HS	1			NIST
NH4NO3	NH₄NO₃	3	5	Wikipedia	NIST
NH4NO3	NH₄NO₃		2	Wikipedia	NIST
NH4VO3	NH₄VO₃	1	1		NIST
[NH4]+	[NH₄]⁺	27	15	Wikipedia	NIST
Ni	Ni	3	17	Wikipedia	NIST
Ni(CO)4	Ni(CO)₄	1	3	Wikipedia	NIST
[Ni(en)3]2+	[Ni(en)₃]²⁺	1			NIST
Ni(OH)2	Ni(OH)₂	1		Wikipedia	NIST
Ni/H2	Ni/H₂ ^{Raney Nickel}		5	Wikipedia	NIST
Ni2+	Ni²⁺		6		NIST
Ni2O3	Ni₂O₃			Wikipedia	NIST
NI3.6NH3	NI₃.6NH₃	1			NIST
Niacin		4		Wikipedia	NIST
NiAs	NiAs				NIST
NiBr2	NiBr₂				NIST
Niccolite	NiAs		1	Wikipedia
Nichrome IV	Nichrome IV			Wikipedia	NIST
Nichrome wire	Nichrome Wire			Wikipedia	NIST
Nickel	Ni	3	17	Wikipedia	NIST
Nickel bloom	Ni₃(AsO₄)₂ .8H₂O			Wikipedia
Nickel carbonyl	Ni(CO)₄	1	3	Wikipedia	NIST
Nickel coinage, U.S.A	Nickel Coinage				NIST
Nickel family (generic)	Group VIIIb/10 Nickel Family			Wikipedia
Nickel group metal (generic)	Group VIIIb/10 Nickel Family			Wikipedia
Nickel monoxide	NiO		1	Wikipedia	NIST
Nickel silver	German Silver			Wikipedia	NIST
Nickel, Raney	Ni/H₂ ^{Raney Nickel}		5	Wikipedia	NIST
Nickel-Iron	NiFe			Wikipedia
Nickel(II) bromide	NiBr₂				NIST
Nickel(II) carbonate	NiCO₃	1		Wikipedia	NIST
Nickel(II) chloride	NiCl₂			Wikipedia	NIST
Nickel(II) fluoride	NiF₂			Wikipedia	NIST
Nickel(II) hydroxide	Ni(OH)₂	1		Wikipedia	NIST
Nickel(II) iodide	NiI₂				NIST
Nickel(II) ion	Ni²⁺		6		NIST
Nickel(II) oxide	NiO		1	Wikipedia	NIST
Nickel(II) sulfide		1		Wikipedia	NIST
Nickel(II) tetrahydro ion	[NiH₄]^4–	1	1		NIST
Nickel(II) tris(ethylenediamine) ion	[Ni(en)₃]²⁺	1			NIST
Nickel(III) arsinide	NiAs				NIST
Nickel(III) oxide	Ni₂O₃			Wikipedia	NIST
Nickeline	NiAs		1	Wikipedia
Nickelocene		1		Wikipedia	NIST
NiCl2	NiCl₂			Wikipedia	NIST
NiCO3	NiCO₃	1		Wikipedia	NIST
Nicotinamide		1	1	Wikipedia	NIST
Nicotine			1	Wikipedia	NIST
Nicotinic acid		4		Wikipedia	NIST
Nicotinonitrile		1	2		NIST
NiCp2		1		Wikipedia	NIST
NiF2	NiF₂			Wikipedia	NIST
[NiH4]4-	[NiH₄]^4–	1	1		NIST
Nihonium	Nh			Wikipedia
NiI2	NiI₂				NIST
NiO	NiO		1	Wikipedia	NIST
Niobium	Nb			Wikipedia	NIST
Niobium pentoxide	Nb₂O₅			Wikipedia	NIST
Niobium(II) oxide	NbO				NIST
Niobium(III) bromide	NbBr₃				NIST
Niobium(III) chloride	NbCl₃				NIST
Niobium(III) iodide	NbI₃				NIST
Niobium(III) oxide	Nb₂O₃				NIST
Niobium(IV) oxide	NbO₂				NIST
Niobium(V) bromide	NbBr₅				NIST
Niobium(V) chloride	NbCl₅			Wikipedia	NIST
Niobium(V) fluoride	NbF₅ [NbF₅]₄				NIST
Niobium(V) iodide	NbI₅				NIST
Niobium(V) oxide	Nb₂O₅			Wikipedia	NIST
NiS		1		Wikipedia	NIST
Niter	KNO₃	3	1	Wikipedia	NIST
Nitranion	[H₂N]^–	2	18		NIST
Nitranion (generic)			3
Nitrate ester (generic)	RO–NO₂			Wikipedia
Nitrate ion	[NO₃]^–	15	28	Wikipedia	NIST
Nitratine	NaNO₃	6	6	Wikipedia	NIST
Nitratine	NaNO₃			Wikipedia
Nitrating mixture	HNO₃\|H₂SO₄ ^concentrated	1	3		NIST
Nitrazepam				Wikipedia	NIST
Nitre	KNO₃	3	1	Wikipedia	NIST
Nitrene	NH	1		Wikipedia	NIST
Nitrene (generic)	R–N	1		Wikipedia
Nitrenium ion	[NH₂]⁺			Wikipedia	NIST
Nitric acid 5 molar	HNO₃ ^{5 molar}	1	1	Wikipedia	NIST
Nitric acid, aqueous	HNO₃(aq)	3	3	Wikipedia	NIST
Nitric acid triester of glycerol		1	2	Wikipedia	NIST
Nitric acid, concentrated	HNO₃	6	25	Wikipedia	NIST
Nitric acid, fuming	HNO₃ ^fuming	2	3	Wikipedia	NIST
Nitric acid, gas phase species	HNO₃(g)	1	1	Wikipedia	NIST
Nitric acid, protonated		2	1		NIST
Nitric oxide	NO	20	14	Wikipedia	NIST
Nitride ion	N^3–		6	Wikipedia	NIST
Nitrile (generic)	R–CN	5	11
Nitrile butadiene rubber	Nitrile Rubber	1		Wikipedia	NIST
Nitrile rubber	Nitrile Rubber	1		Wikipedia	NIST
Nitrile, alkyl (AS/A2 generic)		1	3	Wikipedia
Nitrilium ion (generic)		1
Nitrite ester, tertiary butyl		1			NIST
Nitrite ion	[NO₂]^–	2	6		NIST
Nitro compound (generic)	R–NO₂	2	4
7-Nitro-1,3-dihydro-1-methyl-5-phenyl-2H-1,4-benzodiazepin-2-one				Wikipedia	NIST
Nitro-lime	CaC₂	3	3	Wikipedia	NIST
4-Nitroacetanalide		1	1		NIST
para-Nitroacetanalide		1	1		NIST
Nitroacetate ion			1		NIST
Nitroacetic acid		1			NIST
4-Nitroacetophenone			1		NIST
Nitroalkane alpha-carbanion (generic)			1	Wikipedia
4-Nitroaniline		1	3	Wikipedia	NIST
Nitrobenzene		3	6	Wikipedia	NIST
Nitrobenzene SeAr intermediate		2	1		NIST
Nitrobenzene, protonated		1			NIST
Nitrocellulose	Nitrocellulose	1	1	Wikipedia	NIST
Nitrochloroform	CCl₃NO₂				NIST
Nitrocyclohexane		1	1		NIST
Nitrogen	N₂	56	20		NIST
Nitrogen dioxide	NO₂	16	14	Wikipedia	NIST
Nitrogen family (generic)	Group Va/15 Pnictogens			Wikipedia
Nitrogen hydride	NH₃	48	115	Wikipedia	NIST
Nitrogen monoxide	NO	20	14	Wikipedia	NIST
Nitrogen mustard (generic)	R₂N–CH₂CH₂Cl	1
Nitrogen sesquioxide	N₂O₃	2	2	Wikipedia	NIST
Nitrogen tribromide hexaammoniate	NBr₃.6NH₃				NIST
Nitrogen trichloride	NCl₃	1	1	Wikipedia	NIST
Nitrogen trifluoride	NF₃			Wikipedia	NIST
Nitrogen triiodide hexaammoniate	NI₃.6NH₃	1			NIST
Nitrogen trioxide	NO₃	1		Wikipedia	NIST
Nitrogen(II) oxide	NO	20	14	Wikipedia	NIST
Nitrogen(IV) oxide	NO₂	16	14	Wikipedia	NIST
Nitroglycerin		1	2	Wikipedia	NIST
Nitroglycerine		1	2	Wikipedia	NIST
Nitroguanidine		1		Wikipedia	NIST
Nitrolime	CaNCN	1	3	Wikipedia	NIST
Nitromethane	CH₃–NO₂	1	2	Wikipedia	NIST
Nitromethane, protonated		1			NIST
Nitronium ion	[NO₂]⁺	3	6	Wikipedia	NIST
Nitronium nitrate	N₂O₅	2	4	Wikipedia	NIST
Nitronium tetrafluoroborate	[NO₂]⁺[BF₄]^–	1		Wikipedia	NIST
Nitrooxonium ion		2	1		NIST
4-Nitrophenacyl bromide		1	1		NIST
3-Nitrophenol		1			NIST
4-Nitrophenol		1		Wikipedia	NIST
3-Nitrophenoxide ion			1		NIST
4-Nitrophenoxide ion			1		NIST
N-(2-(4-Nitrophenyl)-1-hydroxymethyl-2-oxoethyl)ethanamide		1	1		NIST
N-(2-(4-Nitrophenyl)-2-hydroxy-1-hydroxymethylethyl)ethanamide		1	1		NIST
N-(2-(-4-Nitrophenyl)-2-oxoethyl)ethanamide		1	1		NIST
1-(4-Nitrophenyl)ethanone			1		NIST
4-Nitrophenylammonium ion		1			NIST
Nitroryl (generic)	R₃N=O	1
Nitroso (generic)	R–N=O			Wikipedia
Nitrosobenzene			1	Wikipedia	NIST
Nitrosodisulfonate	(KSO₃)₂NO		1	Wikipedia	NIST
Nitrosonium ion	[NO]⁺	2	3	Wikipedia	NIST
Nitrosyl chloride	NOCl	5	1	Wikipedia	NIST
Nitrosyl hydrogen sulfate	NOHSO₄	2	3		NIST
Nitrosyl ion	[NO]⁺	2	3	Wikipedia	NIST
Nitrosyl sulfuric acid	NOHSO₄	2	3		NIST
Nitrous acid	HNO₂	9	10	Wikipedia	NIST
Nitrous oxide	N₂O	4	2	Wikipedia	NIST
Nitryl chloride	Cl–NO₂	3		Wikipedia	NIST
Nitryl ion	[NO₂]⁺	3	6	Wikipedia	NIST
NMP		1		Wikipedia	NIST
NO	NO	20	14	Wikipedia	NIST
No	No			Wikipedia	NIST
NO2	NO₂	16	14	Wikipedia	NIST
NO2BF4	[NO₂]⁺[BF₄]^–	1		Wikipedia	NIST
NO2Cl	Cl–NO₂	3		Wikipedia	NIST
[NO2]+	[NO₂]⁺	3	6	Wikipedia	NIST
[NO2]-	[NO₂]^–	2	6		NIST
NO3	NO₃	1		Wikipedia	NIST
[NO3]-	[NO₃]^–	15	28	Wikipedia	NIST
Nobelium	No			Wikipedia	NIST
Noble gas (generic)	Group VIIIa/18 Noble Gases			Wikipedia
NOCl	NOCl	5	1	Wikipedia	NIST
NOHSO4	NOHSO₄	2	3		NIST
Non-hydroxy Bronsted Acid (generic)	X–H^δ+ ^{Brønsted acid}
Non-radioactive isotope (generic)	Isotope Non-Radioeactive
Nonane		1		Wikipedia	NIST
Nonmetal anion (AS/A2 generic)
Noradrenaline				Wikipedia	NIST
Norbornadiene		1	1	Wikipedia	NIST
Norbornadiene rhodium(I) chloride dimer		1			NIST
cis 5-Norbornene -endo -2,3-dicarboxylic anhydride		1			NIST
cis 5-Norbornene -exo-2,3- dicarboxylic anhydride		1			NIST
2-Norbornyl lithium			2		NIST
Norepinephrine				Wikipedia	NIST
Nosean	Na₈Al₆Si₆O₂₄ (SO₄)			Wikipedia
Noselite	Na₈Al₆Si₆O₂₄ (SO₄)			Wikipedia
[NO]+	[NO]⁺	2	3	Wikipedia	NIST
Np	Np			Wikipedia	NIST
Nu- (generic)			5	Wikipedia
Nu: (generic)			1	Wikipedia
Nucleofugal charged Lewis base, Nfg- (generic)		20	12
Nucleofugal neutral Lewis base, Nfg: (generic)			1
Nucleofuge, anionic (generic)		20	12
Nucleofuge, neutral (generic)			1
Nucleophile (AS/A2 generic)				Wikipedia
Nucleophile, alkylated (generic)	R–Nu	3
Nucleophile, anionic (generic)			5	Wikipedia
Nucleophile, neutral (generic)			1	Wikipedia
Nucleophilic attack susceptible species (generic)
Nucleophilic charged Lewis base, Nu- (generic)			5	Wikipedia
Nucleophilic neutral Lewis base, Nu: (generic)			1	Wikipedia
Nylon-6		1		Wikipedia	NIST
Nylon-6,6	Nylon-6,6	1		Wikipedia	NIST
O	O	6	14		NIST
[O]	[O]		14		NIST
O(CH2)2O		2	1	Wikipedia	NIST
O2	O₂	60	163	Wikipedia	NIST
O2 (singlet, 1st excited state)	^1ΔO₂	2	1	Wikipedia	NIST
O2 (singlet, 2nd excited state)	¹Σ⁺_gO₂			Wikipedia	NIST
O2F2	O₂F₂	1		Wikipedia	NIST
[O2]+	[O–O]⁺	1			NIST
[O2]-	[O–O]^–		5	Wikipedia	NIST
[O2]2-	^–O–O^–		6	Wikipedia	NIST
O3	O₃	1	11	Wikipedia	NIST
[O3]-	[O₃]^–		1	Wikipedia	NIST
(OCH2O)n		1		Wikipedia	NIST
OCNH	HNCO	1			NIST
Octacarbonyldicobalt(0)	Co₂(CO)₈	1	1		NIST
(9Z, 12Z)-Octadecadienoic acid	Linoleic Acid	4		Wikipedia	NIST
Octadecanoic acid	CH₃(CH₂)₁₆COOH	1			NIST
(9Z, 12Z, 15Z)-Octadecatrienoic acid	Linolenic Acid	1		Wikipedia	NIST
(9Z)-Octadecenoic acid	Oleic Acid	6		Wikipedia	NIST
Octahedral molecular shape (generic)				Wikipedia
Octahedral, distorted molecular shape (generic)				Wikipedia
Octahedrite	TiO₂		1	Wikipedia
1,2,3,4,5,6,7,8-Octahydronaphthalene		1			NIST
9,10-Octalin		1			NIST
1,9-beta-Octalone			4		NIST
Octane		1	3	Wikipedia	NIST
1,3,5,7-Octatetrene					NIST
(2E, 4Z, 6E)-Octatriene			2		NIST
(2E, 4Z, 6Z)-Octatriene			2		NIST
Octogen			1	Wikipedia	NIST
Octol	75% HMX 25% TNT	1		Wikipedia
2-Octyl radical		1	1		NIST
OF2	OF₂	1		Wikipedia	NIST
Og	Og			Wikipedia	NIST
Oganesson	Og			Wikipedia	NIST
OH-/H2O	OH^–(aq)		8
OH.	HO•	12	8	Wikipedia	NIST
[OH3]+	[H₃O]⁺	5	5		NIST
[OH]+	[HO]⁺		1		NIST
[OH]-	[OH]^–	25	79	Wikipedia	NIST
Oil of aniseed				Wikipedia	NIST
Oil of cloves		1			NIST
Oil of nutmeg					NIST
Oil of peppermint component				Wikipedia	NIST
Oil of sassafras				Wikipedia	NIST
Oil of thyme and mint				Wikipedia	NIST
Oil of vanilla bean				Wikipedia	NIST
Oil of vitriol	H₂SO₄	25	74	Wikipedia	NIST
Oil, coconut	Coconut Oil		2	Wikipedia
Oil, corn	Corn Oil		1	Wikipedia
Oil, crude	Crude Oil		13	Wikipedia
Oil, linseed	Linseed Oil		1	Wikipedia
Oil, olive	Olive Oil		1	Wikipedia
Oil, peanut	Peanut Oil		2	Wikipedia
Oil, sunflower	Sunflower Oil		2	Wikipedia	NIST
Old Nick (Satan)	Ni	3	17	Wikipedia	NIST
Old Nick's (Satan's) copper	NiAs		1	Wikipedia
Oleic acid	Oleic Acid	6		Wikipedia	NIST
Oleum	H₂S₂O₇	1	6	Wikipedia	NIST
Olive oil	Olive Oil		1	Wikipedia
Olivenite	Cu₂AsO₄(OH)			Wikipedia
Olivine	(Mg,Fe)₂SiO₄			Wikipedia
Omega	Ω^–	1		Wikipedia
[ONC]-	[O=N=C]^–		2	Wikipedia	NIST
Onium ion Lewis acid (generic)			4	Wikipedia
Opal	SiO₂.nH₂O			Wikipedia
Opiate (generic)	Narcotic Analgesic			Wikipedia
pi-Organometallic (generic)				Wikipedia
Orlon		1	1	Wikipedia	NIST
Orpiment	As₂S₃			Wikipedia
Orthite	(Ca,Ce,Y,La,Th)₂ (Al,Fe)₃Si₃O₁₂(OH)			Wikipedia
Orthoborate ion	[BO₃]^3–			Wikipedia	NIST
Orthoboric acid	H₃BO₃	10	9	Wikipedia	NIST
Orthoclase	KAlSi₃O₈			Wikipedia
orthoHydrogen	↑H–H↑	1		Wikipedia	NIST
Tetrahydroorthoperiodate ion	[H₄IO₆]^–	1	1		NIST
Orthoperiodate (trihydrogen) ion	[H₃IO₆]^2–		1		NIST
Orthoperiodic acid	H₅IO₆	3	1	Wikipedia	NIST
Orthophosphoric acid	H₃PO₄	8	7	Wikipedia	NIST
Orthophosphorus acid	H₃PO₃	8	1	Wikipedia	NIST
Orthosilicate ion	[SiO₄]^4–		2	Wikipedia	NIST
Os	Os			Wikipedia	NIST
Os3+	Os³⁺				NIST
Os4+	Os⁴⁺				NIST
OsBr4	OsBr₄				NIST
OsCl3	OsCl₃				NIST
OsCl4	OsCl₄				NIST
OsCl5	OsCl₅				NIST
OsF4	OsF₄				NIST
OsF5	OsF₅				NIST
OsF6	OsF₆				NIST
OsF8	OsF₈				NIST
OsI4	OsI₄				NIST
Osmic acid	OsO₄			Wikipedia	NIST
Osmium	Os			Wikipedia	NIST
Osmium tetroxide	OsO₄			Wikipedia	NIST
Osmium(III) chloride	OsCl₃				NIST
Osmium(III) Ion	Os³⁺				NIST
Osmium(IV) bromide	OsBr₄				NIST
Osmium(IV) chloride	OsCl₄				NIST
Osmium(IV) fluoride	OsF₄				NIST
Osmium(IV) iodide	OsI₄				NIST
Osmium(IV) Ion	Os⁴⁺				NIST
Osmium(IV) oxide	OsO₂				NIST
Osmium(V) chloride	OsCl₅				NIST
Osmium(V) fluoride	OsF₅				NIST
Osmium(VI) fluoride	OsF₆				NIST
Osmium(VIII) fluoride	OsF₈				NIST
Osmium(VIII) oxide	OsO₄			Wikipedia	NIST
OsO2	OsO₂				NIST
OsO4	OsO₄			Wikipedia	NIST
ox- (ligand)	[C₂O₄]^2–	1	13	Wikipedia	NIST
7-Oxabicyclo [2.2.1] hepta-5-ene- 2,3-dicarboxylic anhydride		1			NIST
Oxalaldehyde		1	1	Wikipedia	NIST
Oxalate dianion	[C₂O₄]^2–	1	13	Wikipedia	NIST
Oxalate monoanion		1	1		NIST
Oxalate, sodium		2	1	Wikipedia	NIST
Oxalic acid		5	2	Wikipedia	NIST
Oxalic acid diamide		1		Wikipedia	NIST
Oxalic acid dinitrile	N≡C–C≡N	1	1	Wikipedia	NIST
Oxaloacetic acid		1	1	Wikipedia	NIST
Oxalosuccinic acid		1	1	Wikipedia	NIST
Oxalyl chloride				Wikipedia	NIST
Oxamide		1		Wikipedia	NIST
Oxammonium hydrochloride		1		Wikipedia	NIST
1-Oxaspiro[2.5]octane		1			NIST
Oxazole				Wikipedia	NIST
1,2-Oxazole				Wikipedia	NIST
Oxene	O	6	14		NIST
Oxenium ion	[HO]⁺		1		NIST
Oxenium ion (generic)	[R–O]⁺
2-Oxepanone		1		Wikipedia	NIST
Oxidane	H₂O	529	531	Wikipedia	NIST
Oxide ion	O^2–	1	27		NIST
Oxide, organic (generic)		3	5
Oxidised heavy metal oxidising agent (generic)
Oxidised main group element oxidising agent (generic)
Oxidising agent (AS/A2 generic)				Wikipedia
Oxime (generic)		1		Wikipedia
Oxirane		2	13	Wikipedia	NIST
Oxirane (generic)		3	5
Oxirane, O-alkylated (generic)			2
Oxo gas	CO + H₂ ^{Oxo Gas}		2		NIST
2-Oxo-10-boranesulfonic acid		1	1		NIST
2-Oxobutanedioic acid		1	1	Wikipedia	NIST
5-Oxohexanenitrile		1	1		NIST
1,3-Oxolane		1			NIST
Oxonium ion	[H₃O]⁺	5	5		NIST
Oxonium ion, dialkyl (generic)	[R₂OH]⁺	1	1
Oxonium ion, diethyl		1			NIST
Oxonium ion, dimethyl		1			NIST
Oxonium ion, dimethylamino hydroxy		1			NIST
Oxonium ion, ethyl		1	2		NIST
Oxonium ion, hydrated		1		Wikipedia	NIST
Oxonium ion, isopropyl		2			NIST
Oxonium ion, methyl		1			NIST
Oxonium ion, mono 1° alkyl (generic)	[RCH₂OH₂]⁺	1
Oxonium ion, monoalkyl (generic)
Oxonium ion, nitro		2	1		NIST
Oxonium ion, phenyl		1			NIST
Oxonium ion, protonated 1,4-dioxane		1			NIST
Oxonium ion, protonated THF		1			NIST
Oxonium ion, tertiary butyl		2			NIST
Oxonium ion, trialkyl (generic)	[R₃O]⁺		1
Oxonium ion, triethyl	[(CH₃CH₂)₃O]⁺				NIST
Oxonium ion, trihydrated		1		Wikipedia	NIST
Oxonium ion, trimethyl	[(CH₃)₃O]⁺				NIST
Oxonium ion, triphenyl					NIST
Oxonium ion/18-Crown-6 Complex		2			NIST
Oxonium, triethyl tetrafluoroborate	[Et₃O]⁺[BF₄]^–		1	Wikipedia	NIST
2-Oxopentanedioic acid		1	1	Wikipedia	NIST
Oxygen	O₂	60	163	Wikipedia	NIST
Oxygen 16	¹⁶O	2	6	Wikipedia	NIST
Oxygen delivered equivalents	[O]		14		NIST
Oxygen difluoride	OF₂	1		Wikipedia	NIST
Oxygen family (generic)	Group VIa/16 Chalcogens			Wikipedia
Oxygen hydride	H₂O	529	531	Wikipedia	NIST
Oxygen ion	O^2–	1	27		NIST
Oxygen, 1st excited singlet state	^1ΔO₂	2	1	Wikipedia	NIST
Oxygen, 2nd excited singlet state	¹Σ⁺_gO₂			Wikipedia	NIST
Oxyl radical	HO•	12	8	Wikipedia	NIST
Ozone	O₃	1	11	Wikipedia	NIST
Ozonide ion	[O₃]^–		1	Wikipedia	NIST
[O]2-	O^2–	1	27		NIST
P	P	3	20	Wikipedia	NIST
P	P Red	1	1	Wikipedia	NIST
P (proline)		1	1	Wikipedia	NIST
P2	P₂	2		Wikipedia	NIST
P2H6	P₂H₆			Wikipedia	NIST
P2O3	P₂O₃	1	2	Wikipedia	NIST
P2O5	P₂O₅	3	8	Wikipedia	NIST
P2S3	P₂S₃		1	Wikipedia	NIST
P2S5	P₂S₅	1		Wikipedia	NIST
P3-	P^3–		10	Wikipedia	NIST
P4	P	3	20	Wikipedia	NIST
P4O10	P₂O₅	3	8	Wikipedia	NIST
PA		3	4	Wikipedia	NIST
Pa	Pa				NIST
Palladium	Pd	3	6	Wikipedia	NIST
Palladium alloy	Palladium Alloy				NIST
Palladium dichloride	PdCl₂	2	5	Wikipedia	NIST
Palladium gold	Palladium Gold				NIST
Palladium hydride	PdH	1		Wikipedia	NIST
Palladium on barium sulfate	Pd on BaSO₄		8		NIST
Palladium on CaCO3 poisoned with Pb	Pd + Pb on CaCO₃ ^{Lindlar Cat.}		1	Wikipedia	NIST
Palladium on carbon	Pd on C		39		NIST
Palladium white gold	Palladium White Gold			Wikipedia	NIST
Palladium(II) bromide	PdBr₂				NIST
Palladium(II) chloride	PdCl₂	2	5	Wikipedia	NIST
Palladium(II) fluoride	PdF₂				NIST
Palladium(II) hexafluoropalladium(IV)	Pd[PdF₆]				NIST
Palladium(II) iodide	PdI₂				NIST
Palladium(II) ion	Pd²⁺		4		NIST
Palladium(II) oxide	PdO			Wikipedia	NIST
Palladium(IV) fluoride	PdF₄				NIST
Palmitic acid	CH₃(CH₂)₁₄COOH	6		Wikipedia	NIST
Palmitoleic acid	Palmitoleic Acid			Wikipedia	NIST
Paracetaldehyde		1		Wikipedia	NIST
Paracetamol				Wikipedia	NIST
Paraffin	Kerosine	1		Wikipedia	NIST
Paraformaldehyde	(CH₂O)_n	1	1	Wikipedia	NIST
paraHydrogen	↑H–H↓			Wikipedia	NIST
Paraldehyde		1		Wikipedia	NIST
Paramorphine				Wikipedia	NIST
Paraperiodic acid	H₅IO₆	3	1	Wikipedia	NIST
Paris red	Pb₃O₄			Wikipedia	NIST
Pb		6		Wikipedia	NIST
Pb(C2H5)4	Pb(CH₂CH₃)₄	1		Wikipedia	NIST
Pb(CH2CH3)4	Pb(CH₂CH₃)₄	1		Wikipedia	NIST
Pb(MnO4)2	Pb(MnO₄)₂	1			NIST
Pb(N3)2	Pb(N₃)₂	2	1	Wikipedia	NIST
Pb(NO3)2	Pb(NO₃)₂	1	2	Wikipedia	NIST
Pb(OAc)2	Pb(CH₃COO)₂	1		Wikipedia	NIST
Pb(OAc)4	Pb(OCOCH₃)₄	2		Wikipedia	NIST
Pb2+	Pb²⁺	3	14		NIST
Pb2O3	Pb₂O₃				NIST
Pb3(PO4)2	Pb₃(PO₄)₂	1			NIST
Pb3O4	Pb₃O₄			Wikipedia	NIST
Pb4+	Pb⁴⁺	1	2		NIST
PbBr2	PbBr₂	1		Wikipedia	NIST
PbCl2	PbCl₂	1		Wikipedia	NIST
PbCl4	PbCl₄		1		NIST
[PbCl6]2-	[PbCl₆]^2–	1			NIST
PbCO3	PbCO₃	1		Wikipedia	NIST
PbCrO4	PbCrO₄	1		Wikipedia	NIST
PbF2	PbF₂	1		Wikipedia	NIST
PbF4	PbF₄		1		NIST
[PbF6]2-	[PbF₆]^2–	1			NIST
PbI2	PbI₂	1		Wikipedia	NIST
PbNa	PbNa		1	Wikipedia	NIST
PbO	PbO	1	3	Wikipedia	NIST
PbO2	PbO₂		4	Wikipedia	NIST
PBr3	PBr₃	2	2	Wikipedia	NIST
PBr5	PBr₅	2		Wikipedia	NIST
PbS	PbS	1		Wikipedia	NIST
PbSO4	PbSO₄	1	1	Wikipedia	NIST
PCC			2	Wikipedia	NIST
PCl3	PCl₃	2	19	Wikipedia	NIST
PCl5	PCl₅	1	9	Wikipedia	NIST
PCl5(g)	PCl₅(g)			Wikipedia	NIST
Pd	Pd	3	6	Wikipedia	NIST
Pd on BaSO4	Pd on BaSO₄		8		NIST
Pd on C	Pd on C		39		NIST
Pd on CaCO3/Pb	Pd + Pb on CaCO₃ ^{Lindlar Cat.}		1	Wikipedia	NIST
Pd2+	Pd²⁺		4		NIST
PdBr2	PdBr₂				NIST
PdCl2	PdCl₂	2	5	Wikipedia	NIST
PdF2	PdF₂				NIST
PdF4	PdF₄				NIST
[PdF6]2-	[PdF₆]^2–				NIST
PdH	PdH	1		Wikipedia	NIST
PdI2	PdI₂				NIST
PdO	PdO			Wikipedia	NIST
Pd[PdF6]	Pd[PdF₆]				NIST
Peacock ore	Cu₅FeS₄		2	Wikipedia
Peanut oil	Peanut Oil		2	Wikipedia
Pearl ash	K₂CO₃	4	2	Wikipedia	NIST
Pearson borderline Lewis acid (generic)				Wikipedia
Pearson borderline Lewis base (generic)				Wikipedia
Pearson hard Lewis acid (generic)				Wikipedia
Pearson hard Lewis base (generic)				Wikipedia
Pearson soft Lewis acid (generic)				Wikipedia
Pearson soft Lewis base (generic)				Wikipedia
Pectolite	NaCa₂Si₃ O₈(OH)			Wikipedia
Penbritin				Wikipedia	NIST
Penicillin (generic)				Wikipedia
Pent-1-ene		1	2	Wikipedia	NIST
Pentaaquahydroxychromium(III) ion	Cr(H₂O)₅(OH)]²⁺	2			NIST
Pentaaquahydroxyiron(III) ion	[Co(NH₃)₆]²⁺	1			NIST
Pentaaquathiocyanatoiron(III) ion	[Fe(H₂O)₅(SCN)]²⁺	1			NIST
Pentaaquaoxovanadium(IV) ion	[VO]²⁺ [VO(H₂O)₅]²⁺	3	3		NIST
Pentacene				Wikipedia	NIST
Pentadecane			1	Wikipedia	NIST
1,4-Pentadiene					NIST
Pentadieny FMO (generic)
Pentadienyl anion					NIST
Pentadienyl cation					NIST
Pentadienyl radical					NIST
Pentaerythritol		1	1	Wikipedia	NIST
Pentaerythrityl tetranitrate		1	1	Wikipedia	NIST
Pentafluoroiodine	IF₅	2	3	Wikipedia	NIST
Pentagonal bipyramidal molecular shape (generic)				Wikipedia
Pentahydrocobalt(I) ion	[CoH₅]^4–		1		NIST
Pentalene				Wikipedia	NIST
Pentalene dianion				Wikipedia	NIST
Pentamethylene		2		Wikipedia	NIST
Pentan-1-ol			2	Wikipedia	NIST
Pentan-2-ol		1	1		NIST
Pentan-2-one		1	5	Wikipedia	NIST
Pentanal		1	3	Wikipedia	NIST
Pentane		3		Wikipedia	NIST
2,4-Pentanedione		2	2	Wikipedia	NIST
2,4-Pentanedione anion			1	Wikipedia	NIST
Pentanenitrile		1			NIST
Pentanoic acid		3		Wikipedia	NIST
1-Pentanol			2	Wikipedia	NIST
2-Pentanol		1	1		NIST
2-Pentanone		1	5	Wikipedia	NIST
Pentasodium triphosphate		1		Wikipedia	NIST
Pentasulfide dianion	[S–S–S–S–S]^2–				NIST
Pentatin dianion					NIST
1-Pentene		1	2	Wikipedia	NIST
1-Pentyl radical		2	2		NIST
Peptide (AS/A2 generic)		1	1	Wikipedia
Per-Oxygen Oxidising Agent (generic)
Peracetic acid	CH₃COOOH	3	4	Wikipedia	NIST
Perbromate ion	[BrO₄]^–		1	Wikipedia	NIST
Perchlorate ion	[ClO₄]^–		5	Wikipedia	NIST
Perchloric acid	HClO₄	4	1	Wikipedia	NIST
Perchloroethylene	Cl₂C=CCl₂	4		Wikipedia	NIST
Perchloromethane	CCl₄	11	5	Wikipedia	NIST
Perfluoroethane	C₂F₆	1		Wikipedia	NIST
Perfluoroethylene	F₂C=CF₂	1	1	Wikipedia	NIST
Perfluoromethane	CF₄	4	1	Wikipedia	NIST
Period 1 element (generic)	Period 1 Element			Wikipedia
Period 2 element (generic)	Period 2 Element			Wikipedia
Period 3 Chlorides (AS/A2 generic)
Period 3 Element (AS/A2 generic)				Wikipedia
Period 3 element (generic)	Period 3 Element			Wikipedia
Period 3 Oxides (AS/A2 generic)
Period 4 element (generic)	Period 4 Element			Wikipedia
Period 5 element (generic)	Period 5 Element			Wikipedia
Period 6 element (generic)	Period 6 Element			Wikipedia
Period 7 element (generic)	Period 7 Element			Wikipedia
Periodate ion	[IO₄]^–		1	Wikipedia	NIST
Periodic acid	H₅IO₆	3	1	Wikipedia	NIST
Periodic acid, para	H₅IO₆	3	1	Wikipedia	NIST
Perlon®		1		Wikipedia	NIST
Permanganate ion	[MnO₄]^–	2	14		NIST
Peroxide anion, organic (generic)	[ROO]^–		1
Peroxide ion	^–O–O^–		6	Wikipedia	NIST
Peroxide, organic (generic)	ROOH	2
1,4-Peroxido-p-menthene-2		1		Wikipedia	NIST
Peroxodisulfate(VI) ion			4		NIST
Peroxodisulfuric acid		2	1		NIST
Peroxycarboxylic acid (generic)		1	2
Peroxymonosulfuric acid		2	2	Wikipedia	NIST
Perspex		1		Wikipedia	NIST
Persulfuric acid		2	2	Wikipedia	NIST
Perxenate ion	[XeO₆]^4–	1		Wikipedia	NIST
Perylene			1	Wikipedia	NIST
PET	Terylene	2		Wikipedia	NIST
Petalite	LiAlSi₄O₁₀		1	Wikipedia
PETE	Terylene	2		Wikipedia	NIST
Pethidine hydrochloride				Wikipedia	NIST
PETN		1	1	Wikipedia	NIST
Petrol	Gasoline	4		Wikipedia	NIST
Petroleum	Crude Oil		13	Wikipedia
Pewter	Pewter			Wikipedia	NIST
PF3	PF₃	2	1	Wikipedia	NIST
PF5	PF₅	3	1	Wikipedia	NIST
[PF6]-	[PF₆]^–	1			NIST
pH indicator (generic)	Acid-base Indicator			Wikipedia
Ph2NH		1	1	Wikipedia	NIST
Ph3COH		1		Wikipedia	NIST
[Ph3C]+			2		NIST
[Ph3C]-			2	Wikipedia	NIST
Ph3P		1	4	Wikipedia	NIST
Ph3PO	(C₆H₅)₃P=O	1		Wikipedia	NIST
Pharmaceutucal Agent (generic)				Wikipedia
PhAsH2		1			NIST
PhBr		4	1	Wikipedia	NIST
PhCH2Br		2	1	Wikipedia	NIST
PhCH2Cl		1		Wikipedia	NIST
PhCH2CN				Wikipedia	NIST
PhCH2Li					NIST
PhCH2NH2		1		Wikipedia	NIST
PhCH2OH		5	1	Wikipedia	NIST
[PhCH2]+			4		NIST
PhCH3		6	16	Wikipedia	NIST
PhCH=CH2		2	4	Wikipedia	NIST
PhCH=CHPh			1	Wikipedia	NIST
PhCHO		2	6	Wikipedia	NIST
PhCl		5	3	Wikipedia	NIST
PhCN		2	3	Wikipedia	NIST
PhCOCl			1	Wikipedia	NIST
PhCOMe		3	2	Wikipedia	NIST
PhCONH2				Wikipedia	NIST
PhCOOH		6	2	Wikipedia	NIST
PhCOOR				Wikipedia
[PhCOO]-		2	2	Wikipedia	NIST
[PhCO]+			3		NIST
Phe		1	1	Wikipedia	NIST
Phenakite	Be₂SiO₄		1	Wikipedia
Phenanthrene		1		Wikipedia	NIST
Phene		11	42	Wikipedia	NIST
sec-Phenethyl alcohol		1	1		NIST
Phenol		8	10	Wikipedia	NIST
Phenol (generic)		1	1	Wikipedia
Phenol red	Phenol Red			Wikipedia	NIST
Phenolphthalein	Phenolphthalein			Wikipedia	NIST
Phenothiazine				Wikipedia	NIST
Phenoxide ion		2	7		NIST
Phenoxide ion (generic)		1	1
Phenyl acetate		1			NIST
Phenyl alkyl ketone (generic)		4	3
Phenyl amide anion			1	Wikipedia	NIST
Phenyl ammonium ion (generic)				Wikipedia
Phenyl anion			11	Wikipedia	NIST
Phenyl anion (generic)
Phenyl arsine		1			NIST
Phenyl arsine anion			1		NIST
Phenyl azo (generic)		1
Phenyl bromide		4	1	Wikipedia	NIST
Phenyl carbenium ion			4		NIST
Phenyl cation			4		NIST
Phenyl chloride		5	3	Wikipedia	NIST
Phenyl cyanide		2	3	Wikipedia	NIST
Phenyl ester (generic)		4	2
Phenyl ethanoate		1			NIST
Phenyl ether					NIST
Phenyl ether (generic)		3
N-Phenyl hydroxylamine		1		Wikipedia	NIST
Phenyl iodide		3		Wikipedia	NIST
Phenyl lithium		2	2		NIST
Phenyl nitranion			1	Wikipedia	NIST
Phenyl phosphine anion					NIST
Phenyl propyl ketone		2			NIST
Phenyl selenenyl bromide		2			NIST
Phenyl selenium cation			1		NIST
Phenyl silane		1			NIST
Phenyl silyl anion			1		NIST
Phenyl telluride		1			NIST
Phenyl(methyl) radical
Phenyl(methyl)bromide		2	1	Wikipedia	NIST
1-Phenyl-1,1,2,2-tetracyanoethane			1		NIST
1-Phenyl-1-butanone		2			NIST
(+/-) 1-Phenyl-2-aminopropane				Wikipedia	NIST
2-Phenyl-2-methylbutane		1			NIST
3-Phenyl -2-propen-1-ol		2		Wikipedia	NIST
Phenylacetylene		1		Wikipedia	NIST
Phenylacetylide anion			1	Wikipedia	NIST
cis beta-Phenylacrylic acid		1			NIST
trans beta-Phenylacrylic acid		1		Wikipedia	NIST
Phenylalanine		1	1	Wikipedia	NIST
Phenylalanine, deprotonated			1	Wikipedia	NIST
Phenylalanine, protonated		1		Wikipedia	NIST
Phenylamine		8	8	Wikipedia	NIST
Phenylammonium ion		2			NIST
Phenylbenzene		2		Wikipedia	NIST
4-Phenylbutanoic acid			3		NIST
4-Phenylbutyric acid			3		NIST
Phenylcyclohexane		1			NIST
Phenylcyclopropane		1			NIST
1,4-Phenylenediamine		2			NIST
N-Phenylethanamide		2	1	Wikipedia	NIST
1-Phenylethanamine		1			NIST
Phenylethanenitrile				Wikipedia	NIST
1-Phenylethanol		1	1		NIST
Phenylethanone		3	2	Wikipedia	NIST
Phenylethanone SeAr intermediate		1	1		NIST
Phenylethene		2	4	Wikipedia	NIST
cis-(2-Phenylethenyl)benzene		1		Wikipedia	NIST
trans-(2-Phenylethenyl)benzene			1	Wikipedia	NIST
(1R)-1-Phenylethyl ethanoate		1			NIST
(1S)-1-Phenylethyl ethanoate		1			NIST
(2-Phenylethyl)benzene		1			NIST
9-Phenylfluorene		1			NIST
9-Phenylfluorene anion			1	Wikipedia	NIST
(+/-) Phenylglycolic acid		1		Wikipedia	NIST
Phenylhydrazine			1	Wikipedia	NIST
Phenylmethane		6	16	Wikipedia	NIST
Phenylmethanol		5	1	Wikipedia	NIST
Phenylmethyl carbanion			2	Wikipedia	NIST
Phenylmethyl lithium					NIST
Phenylmethylium ion			4		NIST
Phenyloxonium ion		1			NIST
Phenylphosphine				Wikipedia	NIST
2-Phenylprop-2-ylium ion					NIST
3-Phenylpropan-1-ol		2			NIST
2-Phenylpropane		1	1	Wikipedia	NIST
3-Phenylpropenal			3	Wikipedia	NIST
Phenylselenide anion		1	2		NIST
Phenylsulfinate ion			2		NIST
Phenyltelluride anion			1		NIST
Phenyl tricyanoethene		1			NIST
PhEt		4	1	Wikipedia	NIST
PhF			2	Wikipedia	NIST
PhI		3		Wikipedia	NIST
PhLi		2	2		NIST
Phlogopite	KMg₃(AlSi₃O₁₀) (F,OH)₂			Wikipedia
PhMe		6	16	Wikipedia	NIST
[PhN2]+		2	11		NIST
PhN=NPh					NIST
PhNH2		8	8	Wikipedia	NIST
PhNHMe				Wikipedia	NIST
PhNMe2			2		NIST
PhNO			1	Wikipedia	NIST
PhNO2		3	6	Wikipedia	NIST
PhOH		8	10	Wikipedia	NIST
PhOMe			2	Wikipedia	NIST
PhOPh					NIST
Phosgene		2	6	Wikipedia	NIST
Phosphane	PH₃	6	2	Wikipedia	NIST
Phosphate di-substituted (generic)				Wikipedia
Phosphate dianion, hydrogen	[HPO₄]^2–	1	2		NIST
Phosphate ion	[PO₄]^3–	2	7	Wikipedia	NIST
Phosphate ion, dihydrogen	[H₂PO₄]^–	1	3		NIST
Phosphate minerals	Phosphate Rock		1	Wikipedia
Phosphate rock	Phosphate Rock		1	Wikipedia
Phosphate tri-substituted (generic)				Wikipedia
Phosphate, mono-substituted (generic)				Wikipedia
Phosphide ion	P^3–		10	Wikipedia	NIST
Phosphine	PH₃	6	2	Wikipedia	NIST
Phosphine (generic)	R₃P	1	1
Phosphine anion	[H₂P]^–		1		NIST
Phosphine anion (generic)	[R₂P]^–
Phosphine oxide (generic)	R₃P=O
Phosphine, dimethyl phenyl					NIST
Phosphine, diphenyl		1			NIST
Phosphine, diphenyl methyl					NIST
Phosphine, phenyl				Wikipedia	NIST
Phosphine, tri n-butyl		1		Wikipedia	NIST
Phosphine, tri t-butyl		1			NIST
Phosphine, tricyclohexyl				Wikipedia	NIST
Phosphine, triethyl	(CH₃CH₂)₃P	1	2		NIST
Phosphine, triphenyl		1	4	Wikipedia	NIST
Phosphine, trisubstituted (generic)	R₃P	1	1
Phosphinic acid (generic)				Wikipedia
Phosphinous acid (generic)
Phosphite ion	[HPO₃]^2–		1	Wikipedia	NIST
Phosphite ion, hydrogen	[H₃PO₄]^–	1	1		NIST
Phosphite, triethyl	(CH₃CH₂O)₃P		4	Wikipedia	NIST
Phosphite, trimethyl	(CH₃O)₃P			Wikipedia	NIST
Phosphole				Wikipedia	NIST
Phospholeum			1	Wikipedia	NIST
Phosphonate stabilised carbanion (generic)		1	1
Phosphonate, benzyl diethyl		1			NIST
Phosphonate, diethyl 1° alkyl (generic)		2	1
Phosphonate, diethyl alkyl (generic)		1
Phosphonic acid (generic)				Wikipedia
Phosphonium ion	[PH₄]⁺	1			NIST
Phosphonium ion (generic)	[R₃PH]⁺	1
Phosphonium ion, alkyl triphenyl (generic)	[(C₆H₅)₃P–CH₂R]⁺	2	1
Phosphonium ion, triethyl	[(CH₃CH₂)₃PH]⁺	1			NIST
Phosphonium ion, trimethyl	[(CH₃)₃PH]⁺	1			NIST
Phosphonous acid (generic)
Phosphor bronze 30	Phosphor Bronze 30			Wikipedia	NIST
Phosphoric acid	H₃PO₄	8	7	Wikipedia	NIST
Phosphoric acid, hypo			1		NIST
Phosphoric acid, poly			1	Wikipedia	NIST
Phosphoric acid, pyro		2		Wikipedia	NIST
Phosphorus 31	³¹P	1		Wikipedia	NIST
Phosphorus acid	H₃PO₃	8	1	Wikipedia	NIST
Phosphorus acid, hypo	H₃PO₂	2	2	Wikipedia	NIST
Phosphorus acid, pyro					NIST
Phosphorus hexafluoride ion	[PF₆]^–	1			NIST
Phosphorus hydride	PH₃	6	2	Wikipedia	NIST
Phosphorus oxychloride	POCl₃	6	4	Wikipedia	NIST
Phosphorus pentabromide	PBr₅	2		Wikipedia	NIST
Phosphorus pentachloride	PCl₅	1	9	Wikipedia	NIST
Phosphorus pentachloride g	PCl₅(g)			Wikipedia	NIST
Phosphorus pentafluoride	PF₅	3	1	Wikipedia	NIST
Phosphorus pentasulfide	P₂S₅	1		Wikipedia	NIST
Phosphorus pentoxide	P₂O₅	3	8	Wikipedia	NIST
Phosphorus sesquisulfide	P₂S₃		1	Wikipedia	NIST
Phosphorus sulfochloride	PSCl₃	1			NIST
Phosphorus thiochloride	PSCl₃	1			NIST
Phosphorus tribromide	PBr₃	2	2	Wikipedia	NIST
Phosphorus trichloride	PCl₃	2	19	Wikipedia	NIST
Phosphorus trifluoride	PF₃	2	1	Wikipedia	NIST
Phosphorus triiodide	PI₃		1	Wikipedia	NIST
Phosphorus trioxide	P₂O₃	1	2	Wikipedia	NIST
Phosphorus trisulfide	P₂S₃		1	Wikipedia	NIST
Phosphorus, red	P Red	1	1	Wikipedia	NIST
Phosphorus, white	P	3	20	Wikipedia	NIST
Photo activated species (generic)	R* ^{photoactivated}
Photon	hν		52	Wikipedia	NIST
Photon (high energy)	γ	82	2	Wikipedia	NIST
[PhO]-		2	7		NIST
PhPh		2		Wikipedia	NIST
PhPH2				Wikipedia	NIST
PhS-			5		NIST
PhSe+			1		NIST
PhSeBr		2			NIST
[PhSe]-		1	2		NIST
PhSH		1		Wikipedia	NIST
[PhSiH2]-			1		NIST
PhSO2Me		1			NIST
[PhSO2]-			2		NIST
[PhSO3]-			1		NIST
Phthalate (o) (hydrogen) ion		1	1		NIST
o-Phthalate dianion			1		NIST
o-Phthalic acid		2	1	Wikipedia	NIST
Phthalic anhydride		3	4	Wikipedia	NIST
Phthalimide		3		Wikipedia	NIST
Phthalimide ion			2	Wikipedia	NIST
Phthalimide, potassium salt		1		Wikipedia	NIST
π-HOMO Lewis base (generic)			6
pi-LUMO Lewis acid (generic)			4
PI3	PI₃		1	Wikipedia	NIST
3-Picoline		1	1		NIST
4-Picoline		2			NIST
2-Picoline, 5-ethyl		2	1		NIST
alpha-Picoline		3	1	Wikipedia	NIST
Picrate ion			1	Wikipedia	NIST
Picratol	52% Picric acid 48% TNT	1		Wikipedia
Picric acid		2	1	Wikipedia	NIST
Picrite		1		Wikipedia	NIST
Piemontite	Ca₂(Al,Fe,Mn)₃Si₃O₁₂(OH)			Wikipedia
Pimelic ketone		5	5	Wikipedia	NIST
Pinacolone		1	1	Wikipedia	NIST
Pion	π⁺	1		Wikipedia
2-Pipecoline		1			NIST
Piperidine			1	Wikipedia	NIST
Piperidine, protonated		1			NIST
Pitch	Pitch	1		Wikipedia	NIST
Pitchblende	UO₂			Wikipedia
Pivalic acid		1			NIST
Plagioclase	NaAlSi₃O₈– CaAl₂Si₂O₈			Wikipedia
Plaster of Paris	CaSO₄ .½H₂O	1	1	Wikipedia	NIST
Platinous chloride	PtCl₂			Wikipedia	NIST
Platinous potassium chloride	K₂[PtCl₄]	1	1		NIST
Platinum	Pt	1	9	Wikipedia	NIST
Platinum gold, white	White Platinum Gold				NIST
Platinum on carbon	Pt ^{on carbon}		10	Wikipedia	NIST
Platinum trioxide	PtO₃				NIST
Platinum zirconium alloy	ZrPt₃	1			NIST
Platinum(IV) hexafluoride	PtF₆	1	2	Wikipedia	NIST
Platinum-iridium alloy	Pt-Ir				NIST
Platinum(II) bromide	PtBr₂			Wikipedia	NIST
Platinum(II) chloride	PtCl₂			Wikipedia	NIST
Platinum(II) cis-diamminodichloro complex	Pt(NH₃)₂Cl₂			Wikipedia	NIST
Platinum(II) fluoride	PtF₂				NIST
Platinum(II) iodide	PtI₂				NIST
Platinum(II) ion	Pt²⁺		3		NIST
Platinum(II) oxide	PtO				NIST
Platinum(II) tetrachloride ion	[PtCl₄]^2–	1	1		NIST
Platinum(II,IV) oxide	Pt₃O₄				NIST
Platinum(III) chloride	PtCl₃				NIST
Platinum(III) iodide	PtI₃				NIST
Platinum(IV) bromide	PtBr₄				NIST
Platinum(IV) chloride	PtCl₄			Wikipedia	NIST
Platinum(IV) fluoride	PtF₄				NIST
Platinum(IV) hexachloride ion	[PtCl₆]^2–		1		NIST
Platinum(IV) iodide	PtI₄				NIST
Platinum(IV) oxide	PtO₂			Wikipedia	NIST
Platinum(V) fluoride	PtF₅	1			NIST
Platinum(VI) oxide	PtO₃				NIST
Plattnerite	PbO₂		4	Wikipedia	NIST
Plexiglass		1		Wikipedia	NIST
Plumber's solder	Plumber's Solder				NIST
Plumbic chloride	PbCl₄		1		NIST
Plumbic fluoride	PbF₄		1		NIST
Plumbous fluoride	PbF₂	1		Wikipedia	NIST
Plumbum		6		Wikipedia	NIST
Plutonium	Pu			Wikipedia	NIST
Plutonium 238	²³⁸Pu	1	1	Wikipedia	NIST
Plutonium 239	²³⁹Pu	1	1	Wikipedia	NIST
Plutonium 241	²⁴¹Pu		1	Wikipedia	NIST
Pm	Pm			Wikipedia	NIST
Pnictogens (generic)	Group Va/15 Pnictogens			Wikipedia
Po	Po			Wikipedia	NIST
[PO4]3-	[PO₄]^3–	2	7	Wikipedia	NIST
POCl3	POCl₃	6	4	Wikipedia	NIST
Polar-covalent bond (generic)
Polonium	Po			Wikipedia	NIST
Polonium 210	²¹⁰Po	1	1		NIST
Polonium 211	²¹¹Po	1	1	Wikipedia	NIST
Polonium 212	²¹²Po	1	1	Wikipedia	NIST
Polonium 213	²¹³Po	1	1	Wikipedia	NIST
Polonium 214	²¹⁴Po	1	1	Wikipedia	NIST
Polonium 215	²¹⁵Po	2	1	Wikipedia	NIST
Polonium 216	²¹⁶Po	1	2	Wikipedia	NIST
Polonium 218	²¹⁸Po	1	2	Wikipedia	NIST
Poly(chloroethene)		1		Wikipedia	NIST
Poly(dimethysiloxane)	[(CH₃)₂SiO]_n	1			NIST
Poly(phenylethene)		1		Wikipedia	NIST
Poly(propene)		1		Wikipedia	NIST
Polyacetal		1		Wikipedia	NIST
Polyacrylonitrile		1	1	Wikipedia	NIST
Polybutadiene		1		Wikipedia	NIST
Polybutadiene rubber	Polybutadiene Rubber	1		Wikipedia	NIST
Polycarbonate	Polycarbonate	1		Wikipedia	NIST
Polychloroprene		1		Wikipedia	NIST
Polycyclic aromatic (generic)		1	1	Wikipedia
Polydentate base (generic)				Wikipedia
Polyene (generic)			1
Polyethene	–[CH₂CH₂]_n–	2	1		NIST
Polyethylene	–[CH₂CH₂]_n–	2	1		NIST
Polyethylene glycol (generic)	Polyethylene Glycol	1		Wikipedia
Polyethylene terephthalate	Terylene	2		Wikipedia	NIST
Polyethylene-silane graft		1	1		NIST
Polyhalite	K₂Ca₂Mg(SO₄)₄ .2H₂O		1	Wikipedia
Polyhalogen ion (generic)	Polyhalogen Ion
cis-Polyisoprene		1		Wikipedia	NIST
trans-Polyisoprene		1		Wikipedia
Polymer (AS/A2 generic)				Wikipedia
Polymer (generic)	Polymer		1	Wikipedia
Polymethylmethacrylate		1		Wikipedia	NIST
Polynuclear aromatic hydrocarbon (generic)		1	1	Wikipedia
Polyoxymethylene		1		Wikipedia	NIST
Polyphosphoric acid			1	Wikipedia	NIST
Polypropylene		1		Wikipedia	NIST
Polystyrene		1		Wikipedia	NIST
Polytetrafluoroethylene		1		Wikipedia	NIST
Polythiazyl	(SN)_x	1		Wikipedia	NIST
Polyurethane	Polyurethane	1		Wikipedia	NIST
Polyvinyl alcohol		1		Wikipedia	NIST
Polyvinyl fluoride		1		Wikipedia	NIST
Polyvinylacetate		1	1	Wikipedia	NIST
Polyvinylchloride		1		Wikipedia	NIST
Polyvinylidene chloride		1		Wikipedia	NIST
Porphyrin			1	Wikipedia	NIST
Positron	β⁺	6	1	Wikipedia	NIST
Potassium	K	6	24	Wikipedia	NIST
Potassium acid carbonate	KHCO₃	2	1	Wikipedia	NIST
Potassium alum	KAl(SO₄)₂.12H₂O	1		Wikipedia	NIST
Potassium aluminium hydride	KAlH₄				NIST
Potassium amide	KNH₂	2			NIST
Potassium antimonide	K₃Sb	2	1		NIST
Potassium arsenide	K₃As	2	1		NIST
Potassium arsenite	KAsO₂			Wikipedia	NIST
Potassium bicarbonate	KHCO₃	2	1	Wikipedia	NIST
Potassium bifluoride	K[HF₂]	3	1		NIST
Potassium borohydride	KBH₄				NIST
Potassium bromate	NaBrO₃	1	1	Wikipedia	NIST
Potassium bromide	KBr	12		Wikipedia	NIST
Potassium buckide	K₃C₆₀	1		Wikipedia	NIST
Potassium tertiary butoxide		2	2		NIST
Potassium carbide	KCâ‰¡CK	2			NIST
Potassium carbonate	K₂CO₃	4	2	Wikipedia	NIST
Potassium chlorate	KClO₃	2	2	Wikipedia	NIST
Potassium chloride	KCl	11	11	Wikipedia	NIST
Potassium cyanide	KCN	1	5	Wikipedia	NIST
Potassium dichromate(VI)	K₂Cr₂O₇	1	5	Wikipedia	NIST
Potassium dioxide	K₂O	3	3	Wikipedia	NIST
Potassium fluoride	KF	5	5	Wikipedia	NIST
Potassium graphite	C₈K	1		Wikipedia	NIST
Potassium hexachloro platinate	K₂[PtCl₆]	1			NIST
Potassium hydride	KH	2	1	Wikipedia	NIST
Potassium hydrogen carbonate	KHCO₃	2	1	Wikipedia	NIST
Potassium hydrogen difluoride	K[HF₂]	3	1		NIST
Potassium hydrogen sulfide	KSH	3			NIST
Potassium hydroxide	KOH	12	18	Wikipedia	NIST
Potassium iodide	KI	2	6	Wikipedia	NIST
Potassium ion	K⁺	19	45		NIST
Potassium ion 18-crown-6 complex		2			NIST
Potassium magnesium chloride hexahydrate	KCl.MgCl₂.6H₂O	1			NIST
Potassium manganate(V)	K₃MnO₄	2	1		NIST
Potassium manganate(VI)	K₂MnO₄	2	1		NIST
Potassium manganate(VII)	KMnO₄	2	4	Wikipedia	NIST
Potassium metaarsenite	KAsO₂			Wikipedia	NIST
Potassium nitrate	KNO₃	3	1	Wikipedia	NIST
Potassium nitrosodisulfonate	(KSO₃)₂NO		1	Wikipedia	NIST
Potassium oxide	KO₂	2	2	Wikipedia	NIST
Potassium ozonide	KO₃	2			NIST
Potassium perbromate	NaBrO₄	2			NIST
Potassium perchlorate	KClO₄	3	1	Wikipedia	NIST
Potassium permanganate	KMnO₄	2	4	Wikipedia	NIST
Potassium peroxide	K₂O₂	2		Wikipedia	NIST
Potassium phosphide	K₃P	2			NIST
Potassium phthalimide		1		Wikipedia	NIST
Potassium rhenium nonahydride	K₂ReH₉	1		Wikipedia	NIST
Potassium selenide	K₂Se	2			NIST
Potassium sodium tartrate	KNa Tartrate .4H₂O		1	Wikipedia	NIST
Potassium stibnide	K₃Sb	2	1		NIST
Potassium sulfate	K₂SO₄	2	1	Wikipedia	NIST
Potassium sulfide	K₂S	3	1	Wikipedia	NIST
Potassium sulphate	K₂SO₄	2	1	Wikipedia	NIST
Potassium superoxide	K₂O	3	3	Wikipedia	NIST
Potassium telluride	K₂Te	2			NIST
Potassium tetrachloroplaninate(II)	K₂[PtCl₄]	1	1		NIST
Potassium tetrahydrozinc(II) complex	K₂ZnH₄	1			NIST
Potassium trichloro(ethylene)platinate(II) hydrate		1		Wikipedia	NIST
Potassium trisalicaldehyde complex		1			NIST
Pr	Pr			Wikipedia	NIST
Pr2O3	Pr₂O₃				NIST
Praseodymia	Pr₂O₃				NIST
Praseodymium	Pr			Wikipedia	NIST
Praseodymium(III) bromide	PrBr₃				NIST
Praseodymium(III) chloride	PrCl₃			Wikipedia	NIST
Praseodymium(III) iodide	PrI₃				NIST
Praseodymium(III) oxide	Pr₂O₃				NIST
Praseodymium(IV) oxide	PrO₂				NIST
PrBr		3		Wikipedia	NIST
PrBr3	PrBr₃				NIST
PrCl3	PrCl₃			Wikipedia	NIST
Precipitated silica	Si(OH)₄	2		Wikipedia	NIST
Prehnite	Ca₂Al(AlSi₃ O₁₀)(OH)₂			Wikipedia
PrI3	PrI₃				NIST
Primary alcohol (AS/A2 generic)		4	1	Wikipedia
Primary alcohol (generic)	RCH₂OH	15	3
Primary alkyl amine (generic)	R–NH₂	4	9
Primary amine (AS/A2 generic)		2		Wikipedia
PrNH2			1	Wikipedia	NIST
Pro		1	1	Wikipedia	NIST
PrO2	PrO₂				NIST
Producer gas	CO + 2N₂ ^{producer gas}	1		Wikipedia	NIST
Proline		1	1	Wikipedia	NIST
Proline, deprotonated			1	Wikipedia	NIST
Proline, protonated		1		Wikipedia	NIST
Promethium	Pm			Wikipedia	NIST
Prop-1-ene-3-ide anion			2	Wikipedia	NIST
Prop-1-ene-3-ylium ion			2		NIST
Prop-1-yn-3-ylium ion	[HC≡C–CH₂]⁺		1		NIST
Prop-2-en-1-imine					NIST
Prop-2-ylium ion		3	7		NIST
1,2-Propadiene	H₂C=C=CH₂			Wikipedia	NIST
Propan-1-ide anion			2		NIST
Propan-1-ol		4	2	Wikipedia	NIST
Propan-2-ide anion			3	Wikipedia	NIST
Propan-2-ol		9	8	Wikipedia	NIST
Propanal		3	3	Wikipedia	NIST
Propane		2	2	Wikipedia	NIST
Propane-1,2,3-triol		10	2	Wikipedia	NIST
Propanedinitrile	(CN)₂CH₂	1		Wikipedia	NIST
Propanedinitrile anion	[(CN)₂CH]^–		1	Wikipedia	NIST
Propanedioic acid		2	2	Wikipedia	NIST
Propanedioic acid diester (generic)		1
Propanenitrile	CH₃CH₂CN		1	Wikipedia	NIST
Propanoate ion			1		NIST
Propanoic acid	CH₃CH₂COOH	5	1	Wikipedia	NIST
Propanoic acid, ethyl ester		1			NIST
1-Propanol		4	2	Wikipedia	NIST
2-Propanol		9	8	Wikipedia	NIST
Propanone		15	19	Wikipedia	NIST
Propanoyl chloride			1		NIST
Propargyl alcohol	HC≡CCH₂OH	3		Wikipedia	NIST
Propargyl alcohol (generic)			2	Wikipedia
Propargyl alkoxide ion			1		NIST
Propargylic cation	[HC≡C–CH₂]⁺		1		NIST
Propargylic cation (generic)			1
Propargylic cation synthon (generic)		1
Propargylic-Nfg complex (generic)		1
2-Propen-1-ol		8	2	Wikipedia	NIST
Propenal		3	4	Wikipedia	NIST
Propene	CH₃–CH=CH₂	13	29	Wikipedia	NIST
Propenenitrile		6	10	Wikipedia	NIST
1,2,3-Propenetricarboxylic acid		1	1	Wikipedia	NIST
Propeneyl radical					NIST
Propenoic acid		6		Wikipedia	NIST
(2-Propenoxy)benzene			1		NIST
Propenyl anion			2	Wikipedia	NIST
Propenyl cation			2		NIST
2-(2-Propenyl)phenol		1			NIST
Propinioc acid	CH₃CH₂COOH	5	1	Wikipedia	NIST
beta-Propiolactone		1	6	Wikipedia	NIST
Propionaldehyde		3	3	Wikipedia	NIST
Propionyl chloride			1		NIST
2-Propyl alkoxide ion	[(CH₃)₂CH–O]^–	2	1		NIST
2° Propyl anion			3	Wikipedia	NIST
1-Propyl anion			2		NIST
1-Propyl bromide		3		Wikipedia	NIST
2-Propyl bromide	(CH₃)₂CHBr	4	8		NIST
N-Propyl bromide		3		Wikipedia	NIST
Propyl carbenium ion			3		NIST
Propyl carbocation, secondary		3	7		NIST
Propyl cation, primary		1	1	Wikipedia	NIST
Propyl propanoate		1			NIST
1-Propyl radical		2			NIST
iso-Propyl function (generic)
n-Propyl function (generic)				Wikipedia
n-Propylamine			1	Wikipedia	NIST
1-Propylamine			1	Wikipedia	NIST
iso-Propylamine	(CH₃)₂CHNH₂	1		Wikipedia	NIST
1-Propyl ammonium ion		1			NIST
Propylene	CH₃–CH=CH₂	13	29	Wikipedia	NIST
Propylene chlorohydrin		1	1		NIST
Propylene oxide		3	1	Wikipedia	NIST
2-Propyliodide	(CH₃)₂CHI	3			NIST
2-Propyn-1-ol	HC≡CCH₂OH	3		Wikipedia	NIST
Propyne	CH₃–C≡C–H		1	Wikipedia	NIST
Prostaglandin E1	PGE₁			Wikipedia	NIST
Prostaglandin E2				Wikipedia	NIST
Prostaglandin F2 alpha	PGE_2α			Wikipedia	NIST
Protactinium	Pa				NIST
Protactinium 231	²³¹Pa	1	1	Wikipedia	NIST
Protactinium 233	²³³Pa	1	1	Wikipedia	NIST
Protactinium 234	²³⁴Pa	1	1	Wikipedia	NIST
Protein (generic)	Protein			Wikipedia
Protein, single cell	SCP	2		Wikipedia
Proton	H⁺	77	547	Wikipedia	NIST
Proton (nuclear chemistry)	¹H	3	7	Wikipedia
Proton abstractor, charged (generic)	Base^– ^{Proton abstractor}		16	Wikipedia
Proton abstractor, neutral (generic)	Base: ^{Proton abstractor}		4	Wikipedia
Proton Lewis acid (generic)			4	Wikipedia
Proton sponge Lewis base (generic)				Wikipedia
Proton, anti	_— p	1		Wikipedia
Protonated base, H-B (generic)	Base-H ^{Protonated base}	8
Protonated base, [H-B]+ (generic)		2
Protonated ethanol		1	2		NIST
Protonated formaldehyde		1			NIST
Protonated helium	[HHe]⁺	1			NIST
Protonated molecular hydrogen	[H₃]⁺	2	3	Wikipedia	NIST
Protonated nucleofuge, H-Nfg (generic)		1
Protonated nucleophile, H-Nu (generic)		1
Protonated nucleophile, [H-Nfg]+ (generic)		2
Protonated nucleophile, [H-Nu]+ (generic)		1
Protonated xenon	[XeH]⁺				NIST
Proustite	Ag₃AsS₃			Wikipedia
Prussiate of Soda	NaCN	2	4	Wikipedia	NIST
PSCl3	PSCl₃	1			NIST
Pseudohalogen (generic)	Pseudohalogen			Wikipedia
D-Psicose				Wikipedia	NIST
Psilocybin				Wikipedia	NIST
Psilocybine				Wikipedia	NIST
Psilomelane	Mn_xO_y _{mixture of oxides}			Wikipedia
Psychotomimetic (generic)	Hallucinogen			Wikipedia
Pt on C	Pt ^{on carbon}		10	Wikipedia	NIST
Pt	Pt	1	9	Wikipedia	NIST
Pt(NH3)2Cl2	Pt(NH₃)₂Cl₂			Wikipedia	NIST
Pt2+	Pt²⁺		3		NIST
Pt3O4	Pt₃O₄				NIST
PtBr2	PtBr₂			Wikipedia	NIST
PtBr4	PtBr₄				NIST
PtCl2	PtCl₂			Wikipedia	NIST
PtCl3	PtCl₃				NIST
PtCl4	PtCl₄			Wikipedia	NIST
[PtCl4]2-	[PtCl₄]^2–	1	1		NIST
[PtCl6]2-	[PtCl₆]^2–		1		NIST
PtF2	PtF₂				NIST
PtF4	PtF₄				NIST
PtF5	PtF₅	1			NIST
PtF6	PtF₆	1	2	Wikipedia	NIST
[PtF6]-	[PtF₆]^–	1	1		NIST
PTFE		1		Wikipedia	NIST
PtI2	PtI₂				NIST
PtI3	PtI₃				NIST
PtI4	PtI₄				NIST
PtO	PtO				NIST
PtO2	PtO₂			Wikipedia	NIST
PtO3	PtO₃				NIST
Pu	Pu			Wikipedia	NIST
Pulmbous pulmbate	Pb₂O₃				NIST
Purine				Wikipedia	NIST
Purple gold	Purple Gold				NIST
Putrescine		2		Wikipedia	NIST
PVC		1		Wikipedia	NIST
PVF		1		Wikipedia	NIST
Pyrargyrite	Ag₃SbS₃			Wikipedia
Pyrazine				Wikipedia	NIST
Pyrazole				Wikipedia	NIST
2-Pyrazoline		1			NIST
Pyrene				Wikipedia	NIST
Pyrex® glass	Pyrex®	1		Wikipedia
Pyridazine				Wikipedia	NIST
Pyridine		2	4	Wikipedia	NIST
Pyridine (generic)				Wikipedia
Pyridine hydrochloride		2			NIST
Pyridine, 2-methyl		3	1	Wikipedia	NIST
Pyridine, 5-ethyl-2-methyl		2	1		NIST
Pyridine, protonated		1	1		NIST
Pyridine-3-carboxylic acid		4		Wikipedia	NIST
3-Pyridinecarboxylic acid amide		1	1	Wikipedia	NIST
Pyridinium chlorochromate			2	Wikipedia	NIST
Pyridinium hydrochloride		2			NIST
Pyridinium ion		1	1		NIST
Pyridinium ion, 2-methyl		1			NIST
Pyridinium ion, 4-methyl-2,6-di tertiary butyl		1			NIST
Pyridinium ion, 2,4,6-trimethyl		1			NIST
Pyrimidine				Wikipedia	NIST
2,4,(1H,3H)-Pyrimidinedione	Uracil U			Wikipedia	NIST
Pyrimidinetrione			1	Wikipedia	NIST
Pyrite	FeS₂ ^pyrite		2	Wikipedia
Pyrochlore	(Ca,Na)₂Nb₂O₆ (O,OH,F)			Wikipedia
Pyrolusite	MnO₂		1	Wikipedia
Pyromorphite	Pb₅(PO₄)₃Cl			Wikipedia
Pyrophosphoric acid		2		Wikipedia	NIST
Pyrophosphorus acid					NIST
Pyrosulfite ion			2		NIST
Pyrosulfuric acid	H₂S₂O₇	1	6	Wikipedia	NIST
Pyrosulfurous acid		1			NIST
Pyroxylin	Nitrocellulose	1	1	Wikipedia	NIST
Pyrrhotite	Fe_0.8S		1	Wikipedia
Pyrrole				Wikipedia	NIST
Pyrrolidine			1	Wikipedia	NIST
Pyrrolidine, protonated		1			NIST
2,5-Pyrrolidinedione		2		Wikipedia	NIST
2-Pyrrolidinone		1		Wikipedia	NIST
Pyruvate ion			1		NIST
Pyruvic acid		1		Wikipedia	NIST
Pyrylium ion			1		NIST
Pyrylium tetrafluoroborate		1			NIST
Q (glutamine)		1	1	Wikipedia	NIST
Quark	Quark			Wikipedia
Quark, up	u		5	Wikipedia
Quark, antiup	_— u		2	Wikipedia
Quark, down	d		3	Wikipedia
Quark, antidown	_— d		3	Wikipedia
Quark, strange	s		3	Wikipedia
Quark, antistrange	_— s			Wikipedia
Quark, charm	c		1	Wikipedia
Quark, anticharm	_— c		1	Wikipedia
Quark, top	t			Wikipedia
Quark, antitop	_— t			Wikipedia
Quark, bottom	b			Wikipedia
Quark, antibottom	_— b			Wikipedia
Quartz	SiO₂			Wikipedia
Quartz glass	Quartz Glass SiO₂			Wikipedia	NIST
Quick lime	CaO	7	6	Wikipedia	NIST
Quicksilver	Hg	4	1	Wikipedia	NIST
Quinol		2		Wikipedia	NIST
Quinoline				Wikipedia	NIST
Quinolizinium ion					NIST
Quinone		3	1	Wikipedia	NIST
R (arginine)		1	1	Wikipedia	NIST
R•	R•		2	Wikipedia
R-	R^–	2	13	Wikipedia
R-S-CH2CH2Cl	R–S–CH₂CH₂Cl	1
R2NH	R₂NH	1	3
[R2N]-			3
R2O		2	2	Wikipedia
R2S	R₂S	2	5
R3CO-		2	1
[R3C]+	[R₃C]⁺		3
[R3C]-	[R₃C]^–		1	Wikipedia
R3N	R₃N	1	3
Ra	Ra			Wikipedia	NIST
Radical (AS/A2 generic)				Wikipedia
Radical (generic)	R•		2	Wikipedia
Radical, allyl					NIST
Radical, pentadienyl					NIST
Radioactive material (generic)				Wikipedia
Radium	Ra			Wikipedia	NIST
Radium 223	²²³Ra	2	1	Wikipedia	NIST
Radium 224	²²⁴Ra	1	1	Wikipedia	NIST
Radium 225	²²⁵Ra	1	1	Wikipedia	NIST
Radium 226	²²⁶Ra	1	1	Wikipedia	NIST
Radium 228	²²⁸Ra	1	1	Wikipedia	NIST
Radon	Rn		1	Wikipedia	NIST
Radon 219	²¹⁹Rn	1	1	Wikipedia	NIST
Radon 220	²²⁰Rn	1	1	Wikipedia	NIST
Radon 222	²²²Rn	1	1	Wikipedia	NIST
Radon difluoride	RnF₂	1		Wikipedia	NIST
Raney nickel	Ni/H₂ ^{Raney Nickel}		5	Wikipedia	NIST
Rb	Rb	1	20	Wikipedia	NIST
Rb+	Rb⁺	5	20		NIST
Rb2C2	RbCâ‰¡CRb	2			NIST
Rb2O	Rb₂O	2	1	Wikipedia	NIST
Rb2O2	Rb₂O₂	2			NIST
Rb2S	Rb₂S	2	1		NIST
Rb2Se	Rb₂Se	2			NIST
Rb2Te	Rb₂Te	2			NIST
Rb3As	Rb₃As	2	1		NIST
Rb3P	Rb₃P	2			NIST
Rb3Sb	Rb₃Sb	2	1		NIST
RbBr	RbBr	2		Wikipedia	NIST
RbCl	RbCl	2		Wikipedia	NIST
RbF	RbF	2	1	Wikipedia	NIST
RbH	RbH	2	1	Wikipedia	NIST
RbI	RbI	2		Wikipedia	NIST
RbNH2	RbNH₂	2			NIST
RbO2	RbO₂	2			NIST
RbOH	RbOH	7	2	Wikipedia	NIST
RBr	RBr	5	8	Wikipedia
RbSH	RbSH	3			NIST
[RCC]-	R–C≡C^–	1	2	Wikipedia
RCF3	R–CF₃	1		Wikipedia
RCH2OH	RCH₂OH	15	3
RCHO	RCHO	11	21	Wikipedia
RCl	RCl	4	7	Wikipedia
RCN	R–CN	5	11
RCOCl	RCOCl	6	17
RCOOH	RCOOH	15	14
RCOOR		7	11	Wikipedia
[RCOO]-	RCOO^–	9	11	Wikipedia
RCOSH		1
[RCO]+	[RCO]⁺	1	15
RCSSH
RDX		1	3	Wikipedia	NIST
Re	Re			Wikipedia	NIST
Re2O7	Re₂O₇			Wikipedia	NIST
Re3Br9	ReBr₃ Re₃Br₉				NIST
Re3Cl9	ReCl₃ Re₃Cl₉				NIST
Re3I9	ReI₃ Re₃I₉				NIST
Re7+	Re⁷⁺		1		NIST
Realgar	As₄S₄			Wikipedia
ReBr4	ReBr₄				NIST
ReBr5	ReBr₅				NIST
ReCl4	ReCl₄				NIST
ReCl5	ReCl₅				NIST
Red brass	Commercial Bronze			Wikipedia	NIST
Red copper ore	Cu₂O		1	Wikipedia
Red lead	Pb₃O₄			Wikipedia	NIST
Red phosphorus	P Red	1	1	Wikipedia	NIST
Reducing agent (AS/A2 generic)				Wikipedia
ReF4	ReF₄				NIST
ReF6	ReF₆				NIST
ReF7	ReF₇				NIST
Refinary gas	Natural Gas	1	5	Wikipedia	NIST
[ReH9]2-	[ReH₉]^2–	1	1		NIST
ReI4	ReI₄				NIST
ReI5	ReF₅				NIST
ReO2	ReO₂				NIST
ReO3	ReO₃				NIST
11-cis-Retinal	11-cis-Retinal	1		Wikipedia	NIST
trans-Retinal	trans-Retinal	1	1	Wikipedia	NIST
Retinol	Retinol Vitamin A		1	Wikipedia	NIST
Reychlers acid		1	1		NIST
RF	R–F	2	1	Wikipedia
Rf	Rf			Wikipedia	NIST
Rg	Rg			Wikipedia	NIST
Rh			1	Wikipedia	NIST
Rh on C	Rh ^{on Carbon}		8		NIST
Rh+	Rh⁺		2		NIST
Rhenic anhydride	ReO₃				NIST
Rhenium	Re			Wikipedia	NIST
Rhenium nonahydride ion	[ReH₉]^2–	1	1		NIST
Rhenium(III) bromide	ReBr₃ Re₃Br₉				NIST
Rhenium(III) chloride	ReCl₃ Re₃Cl₉				NIST
Rhenium(III) iodide	ReI₃ Re₃I₉				NIST
Rhenium(IV) bromide	ReBr₄				NIST
Rhenium(IV) chloride	ReCl₄				NIST
Rhenium(IV) fluoride	ReF₄				NIST
Rhenium(IV) iodide	ReI₄				NIST
Rhenium(IV) oxide	ReO₂				NIST
Rhenium(V) bromide	ReBr₅				NIST
Rhenium(V) chloride	ReCl₅				NIST
Rhenium(V) fluoride	ReF₅				NIST
Rhenium(VI) fluoride	ReF₆				NIST
Rhenium(VI) oxide	ReO₃				NIST
Rhenium(VII) fluoride	ReF₇				NIST
Rhenium(VII) ion	Re⁷⁺		1		NIST
Rhenium(VII) oxide	Re₂O₇			Wikipedia	NIST
Rhine metal	Rhine Metal				NIST
Rho	ρ⁺	1		Wikipedia
Rhodanate, methyl	N≡C–S–CH₃	1			NIST
Rhodium			1	Wikipedia	NIST
Rhodium on carbon	Rh ^{on Carbon}		8		NIST
Rhodium(I) ion	Rh⁺		2		NIST
Rhodochrosite	MnCO₃		1	Wikipedia
Rhodonite	(Mn²⁺,Fe2²⁺, Mg,Ca)SiO₃			Wikipedia
Rhombic sulfur	S₈	3	1	Wikipedia	NIST
RI	R–I	3	7	Wikipedia
D-Ribose		1	1	Wikipedia	NIST
D-Ribulose				Wikipedia	NIST
Riebeckite	Na₂(Fe²⁺₃Fe³⁺₂) Si₈O₂₂(OH)₂			Wikipedia
RLi	RLi	2	4
RMgBr	RMgBr	2	1	Wikipedia
RMgCl	RMgCl	2	1	Wikipedia
RMgX	RMgX	1	12	Wikipedia
Rn	Rn		1	Wikipedia	NIST
RN3	R–N₃	1		Wikipedia
RN=NR	R–N=N–R'			Wikipedia
RNC	R–NC	3		Wikipedia
RNCO	R–N=C=O	3		Wikipedia
RNCS	R–N=C=S	2		Wikipedia
RnF2	RnF₂	1		Wikipedia	NIST
RNH2	R–NH₂	4	9
RNHNH2	R–NHNH₂			Wikipedia
RNO	R–N=O			Wikipedia
RO-	RO^–	1	8	Wikipedia
Roberts-Austen alloy	Purple Gold				NIST
Rochelle salt	KNa Tartrate .4H₂O		1	Wikipedia	NIST
Rock fiber	Rock Fiber			Wikipedia
Rock wool	Rock Fiber			Wikipedia
ROCN	R–O–C≡N	2		Wikipedia
Roentgenium	Rg			Wikipedia	NIST
ROH	R–OH	18	13	Wikipedia
RONC	Râ€“Oâ€“N=C			Wikipedia
Rose metal	Rose Metal			Wikipedia	NIST
Rose's alloy	Rose Metal			Wikipedia	NIST
[RO]+	[R–O]⁺
RSCN	R–S–C≡N	2		Wikipedia
RSeCN	Râ€“Seâ€“Câ‰¡N
RSeNC	Râ€“Seâ€“N=C
[RSe]-	[R–Se]^–		1
RSH	R–SH	2	2
RSO2Cl	RSO₂Cl	4	1
RSR	R₂S	2	5
RSSR	R–S–S–R	4
[RS]+	[R–S]⁺		2
[RS]-	[R–S]^–		7
Ru	Ru			Wikipedia	NIST
Ru on C	Ru ^{on carbon}		4	Wikipedia	NIST
Ru2+	Ru²⁺				NIST
Rubber, butyl	Butyl Rubber	1	1	Wikipedia	NIST
Rubber, natural				Wikipedia
Rubber, nitrile	Nitrile Rubber	1		Wikipedia	NIST
Rubber, polybutadiene	Polybutadiene Rubber	1		Wikipedia	NIST
Rubber, styrene butadiene	Styrene-Butadiene Rubber	1		Wikipedia	NIST
Rubber, synthetic		1		Wikipedia	NIST
Rubbing alcohol		9	8	Wikipedia	NIST
Rubidium	Rb	1	20	Wikipedia	NIST
Rubidium amide	RbNH₂	2			NIST
Rubidium antimonide	Rb₃Sb	2	1		NIST
Rubidium arsenide	Rb₃As	2	1		NIST
Rubidium bromide	RbBr	2		Wikipedia	NIST
Rubidium carbide	RbCâ‰¡CRb	2			NIST
Rubidium cation	Rb⁺	5	20		NIST
Rubidium chloride	RbCl	2		Wikipedia	NIST
Rubidium fluoride	RbF	2	1	Wikipedia	NIST
Rubidium graphite	C₈Rb	1		Wikipedia	NIST
Rubidium hydride	RbH	2	1	Wikipedia	NIST
Rubidium hydrogen sulfide	RbSH	3			NIST
Rubidium hydroxide	RbOH	7	2	Wikipedia	NIST
Rubidium iodide	RbI	2		Wikipedia	NIST
Rubidium oxide	Rb₂O	2	1	Wikipedia	NIST
Rubidium peroxide	Rb₂O₂	2			NIST
Rubidium phosphide	Rb₃P	2			NIST
Rubidium selenide	Rb₂Se	2			NIST
Rubidium stibnide	Rb₃Sb	2	1		NIST
Rubidium sulfide	Rb₂S	2	1		NIST
Rubidium superoxide	RbO₂	2			NIST
Rubidium telluride	Rb₂Te	2			NIST
RuBr3	RuBr₃				NIST
Ruby	Al₂O₃			Wikipedia
RuCl3	RuCl₃			Wikipedia	NIST
RuCl4	RuCl₄				NIST
RuF3	RuF₃				NIST
RuF4	RuF₄				NIST
RuF5	RuF₅ [RuF₅]₄				NIST
RuF6	RuF₆				NIST
RuI3	RuI₃				NIST
RuO2	RuO₂			Wikipedia	NIST
RuO4	RuO₄			Wikipedia	NIST
Ruthenium	Ru			Wikipedia	NIST
Ruthenium on carbon	Ru ^{on carbon}		4	Wikipedia	NIST
Ruthenium tetroxide	RuO₄			Wikipedia	NIST
Ruthenium(II) ion	Ru²⁺				NIST
Ruthenium(III) bromide	RuBr₃				NIST
Ruthenium(III) chloride	RuCl₃			Wikipedia	NIST
Ruthenium(III) fluoride	RuF₃				NIST
Ruthenium(III) iodide	RuI₃				NIST
Ruthenium(IV) chloride	RuCl₄				NIST
Ruthenium(IV) fluoride	RuF₄				NIST
Ruthenium(IV) oxide	RuO₂			Wikipedia	NIST
Ruthenium(V) fluoride	RuF₅ [RuF₅]₄				NIST
Ruthenium(VI) fluoride	RuF₆				NIST
Ruthenium(VIII) oxide	RuO₄			Wikipedia	NIST
Rutherfordium	Rf			Wikipedia	NIST
Rutile	TiO₂		1	Wikipedia
Redox agent: per-oxygen oxidising agent (generic)
Redox agent: oxidised heavy metal oxidising agent (generic)
Redox agent: oxidised main group element oxidising agent (generic)
Redox agent: SET oxidising agent (generic)
Redox agent: hydrogen removal oxidising agent (generic)
Redox agent: miscellaneous oxidising agent (generic)
Redox agent: hydrogenation reduction (generic)				Wikipedia
Redox agent: hydride donor Lewis acid reducing agent (generic)
Redox agent: hydride ion complex reducing agent (generic)
Redox agent: dissolved metal reducing agent (generic)				Wikipedia
Redox agent: single electron transfer donor reducing agent (generic)
Redox agent: miscellaneous reducing agent (generic)
S	S	13	36	Wikipedia	NIST
S (serine)		1	1	Wikipedia	NIST
s or p-Block element (generic)	Main Group Element			Wikipedia
S(CH2CH2Cl)2	S(CH₂CH₂Cl)₂	1		Wikipedia	NIST
s-HOMO Lewis base (generic)			6
s-LUMO Lewis acid (generic)			4
S2	S₂	1		Wikipedia	NIST
S2-	S^2–	6	29	Wikipedia	NIST
S2Cl2	Cl–S–S–Cl	2	5	Wikipedia	NIST
S2F10	S₂F₁₀	1	1	Wikipedia	NIST
S2F2	S₂F₂				NIST
[S2O3]2-		2	6	Wikipedia	NIST
[S2O4]2-		1	3	Wikipedia	NIST
[S2O5]2-			2		NIST
[S2O6]2-			2	Wikipedia	NIST
[S2O8]2-			4		NIST
[S2]2-	^–S–S^–	5	2	Wikipedia	NIST
[S3]2-	[S–S–S]^2–	5			NIST
S4N4	S₄N₄	1	1		NIST
[S4O6]2-		1	3	Wikipedia	NIST
[S4]2-	[S–S–S–S]^2–				NIST
[S5]2-	[S–S–S–S–S]^2–				NIST
S8	S₈	3	1	Wikipedia	NIST
Safrole				Wikipedia	NIST
Sal polychrestum	K₂SO₄	2	1	Wikipedia	NIST
Salicyate dianion			1		NIST
Salicyate ion		2	1		NIST
Salicylaldehyde			1	Wikipedia	NIST
Salicylic acid		1	2	Wikipedia	NIST
Saline Hydride (generic)		1
Salt cake	Na₂SO₄	14	4	Wikipedia	NIST
Salt of tartar	K₂CO₃	4	2	Wikipedia	NIST
Salt, complex (generic)	Molecular or Complex Salt
Salt, simple (generic)	Ionic			Wikipedia
Saltpeter	KNO₃	3	1	Wikipedia	NIST
Saltpetre	NaNO₃			Wikipedia
Samaria	Sm₂O₃			Wikipedia	NIST
Samarium	Sm			Wikipedia	NIST
Samarium(II) bromide	SmBr₂				NIST
Samarium(II) chloride	SmCl₂			Wikipedia	NIST
Samarium(II) fluoride	SmF₂				NIST
Samarium(II) iodide	SmI₂			Wikipedia	NIST
Samarium(III) bromide	SmBr₃.6H₂O				NIST
Samarium(III) chloride	SmCl₃			Wikipedia	NIST
Samarium(III) fluoride	SmF₃			Wikipedia	NIST
Samarium(III) iodide	SmI₃				NIST
Samarium(III) oxide	Sm₂O₃			Wikipedia	NIST
Sanidine	K(AlSi₃O₈)			Wikipedia
Sapphire	Al₂O₃			Wikipedia
Sarcolactic acid		1		Wikipedia	NIST
Sarin				Wikipedia	NIST
Sb	Sb	1	8	Wikipedia	NIST
Sb2O3	Sb₂O₃	2	2	Wikipedia	NIST
Sb2O5	Sb₂O₅		1	Wikipedia	NIST
Sb2S3	Sb₂S₃	1	1	Wikipedia	NIST
Sb3+	Sb³⁺		2		NIST
Sb3-	Sb^3–		5		NIST
Sb5+	Sb⁵⁺		1		NIST
SbCl3	SbCl₃	3	1		NIST
SbCl5	SbCl₅	2	2		NIST
SbF3	SbF₃	1	2		NIST
SbF5	SbF₅	2	6	Wikipedia	NIST
[SbF6]-	[SbF₆]^–	2	1		NIST
SbH3	H₃Sb	7	1	Wikipedia	NIST
SBR	Styrene-Butadiene Rubber	1		Wikipedia	NIST
Sc	Sc			Wikipedia	NIST
Sc2O3	Sc₂O₃		1	Wikipedia	NIST
Sc3+	Sc³⁺				NIST
Scandia	Sc₂O₃		1	Wikipedia	NIST
Scandium	Sc			Wikipedia	NIST
Scandium family (generic)	Group IIIb/3 Scandium Family			Wikipedia
Scandium group metal (generic)	Group IIIb/3 Scandium Family			Wikipedia
Scandium(II) carbide	ScC₂				NIST
Scandium(II) hydride	ScH₂				NIST
Scandium(III) bromide	ScBr₃				NIST
Scandium(III) chloride	ScCl₃	1		Wikipedia	NIST
Scandium(III) fluoride	ScF₃			Wikipedia	NIST
Scandium(III) hexafluoride ion	[ScF₆]^3–				NIST
Scandium(III) iodide	ScI₃				NIST
Scandium(III) ion	Sc³⁺				NIST
Scandium(III) oxide	Sc₂O₃		1	Wikipedia	NIST
Scapolite Group	Ca₄Al₆Si₆ O₂₄CO₃			Wikipedia
ScBr3	ScBr₃				NIST
ScC2	ScC₂				NIST
ScCl3	ScCl₃	1		Wikipedia	NIST
ScF3	ScF₃			Wikipedia	NIST
[ScF6]3-	[ScF₆]^3–				NIST
ScH2	ScH₂				NIST
Scheelite	CaWO₄			Wikipedia
Schwartzs reagent		1			NIST
ScI3	ScI₃				NIST
SCl2	SCl₂	2	4	Wikipedia	NIST
SCl4	SCl₄		1		NIST
[SCN]-	[SCN]^–		10	Wikipedia	NIST
Scorodite	FeAsO₄.2H₂O			Wikipedia
SCP	SCP	2		Wikipedia
Se	Se	2	20	Wikipedia	NIST
Se2-	Se^2–	1	10		NIST
Se2Br2	S₂Br₂	2			NIST
Se2Cl2	Se₂Cl₂	1			NIST
Seaborgium	Sg			Wikipedia	NIST
Seawater	Seawater		1	Wikipedia
Seawater brine	Seawater Brine	1	3	Wikipedia	NIST
SeBr4	SeBr₄	1	1		NIST
SeCl4	SeCl₄	1	1		NIST
Secobarbital Sodium				Wikipedia	NIST
Seconal Sodium				Wikipedia	NIST
Secondary alcohol (AS/A2 generic)		4	1	Wikipedia
Secondary alkoxide ion (generic)
Secondary alkyl amine (generic)	R₂NH	1	3
Secondary amide (generic)		1	5
Secondary amine (AS/A2 generic)				Wikipedia
Sedative	Minor Tranquilliser			Wikipedia
Sedative (generic)	Hypnotic			Wikipedia
Seesaw molecular shape (generic)				Wikipedia
SeF4	SeF₄	1		Wikipedia	NIST
SeF6	SeF₆	1			NIST
SeH2	H₂Se	3	1	Wikipedia	NIST
Selane	H₂Se	3	1	Wikipedia	NIST
Selenate ion	[SeO₄]^2–			Wikipedia	NIST
Selenate ion hydrogen	[HSeO₄]^–				NIST
Selenic acid		1		Wikipedia	NIST
Selenide anion (generic)	[R–Se]^–		1
Selenide ion	Se^2–	1	10		NIST
Selenite (hydrogen) ion	[HSeO₃]^–	1	1		NIST
Selenite ion	[SeO₃]^2–		1		NIST
Selenium	Se	2	20	Wikipedia	NIST
Selenium bromide	S₂Br₂	2			NIST
Selenium cation (generic)	R–Se⁺
Selenium chloride	Se₂Cl₂	1			NIST
Selenium dianion	Se^2–	1	10		NIST
Selenium dioxide	SeO₂	1	1	Wikipedia	NIST
Selenium hexafluoride	SeF₆	1			NIST
Selenium hydride	H₂Se	3	1	Wikipedia	NIST
Selenium oxide	SeO₂	1	1	Wikipedia	NIST
Selenium tetrabromide	SeBr₄	1	1		NIST
Selenium tetrachloride	SeCl₄	1	1		NIST
Selenium tetrafluoride	SeF₄	1		Wikipedia	NIST
Selenium trioxide	SeO₃			Wikipedia	NIST
Selenium, phenyl bromide		2			NIST
Selenocyanate (generic)	Râ€“Seâ€“Câ‰¡N
Selenoether (generic)	R₂Sb	1
Selenonium ion	[SeH₃]⁺	1			NIST
Selenous acid	H₂SeO₃	2	1	Wikipedia	NIST
Selenyl bromide	SeOBr₂				NIST
Selenyl chloride	SeOCl₂				NIST
Selenyl fluoride	SeOF₂				NIST
Selenylbenzene		1			NIST
Selinole					NIST
Selinophenol		1			NIST
Semi-heavy water	DOH	1			NIST
Semi-Synthetic Species (generic)	Semi-synthetic
Semicarbazide (generic)				Wikipedia
Semtex	Semtex	1		Wikipedia
SeO2	SeO₂	1	1	Wikipedia	NIST
SeO3	SeO₃			Wikipedia	NIST
[SeO3]2-	[SeO₃]^2–		1		NIST
[SeO4]2-	[SeO₄]^2–			Wikipedia	NIST
SeOBr2	SeOBr₂				NIST
SeOCl2	SeOCl₂				NIST
SeOF2	SeOF₂				NIST
Ser		1	1	Wikipedia	NIST
Serine		1	1	Wikipedia	NIST
Serine, deprotonated			1	Wikipedia	NIST
Serine, protonated		1		Wikipedia	NIST
Serpentine group	(Mg, Fe)₃ Si₂O₅(OH)₄			Wikipedia
SET donor reducing agent (generic)
SET oxidising agent (generic)
SF2O2	SF₂O₂	1		Wikipedia	NIST
SF4	SF₄	3	5	Wikipedia	NIST
SF6	SF₆	5		Wikipedia	NIST
Sg	Sg			Wikipedia	NIST
[SH3]+	[SH₃]⁺	1			NIST
Shiff base, dialkyl (generic)		2
Shiff base, N-alkyl alkyl (generic)		1	1	Wikipedia
Shiff base, trialkyl (generic)		1
[SH]-	[HS]^–	1	8		NIST
Si	Si	6	7	Wikipedia	NIST
Si(CH3)4	Si(CH₃)₄	1		Wikipedia	NIST
Si(OH)4	Si(OH)₄	2		Wikipedia	NIST
Si3N4	Si₃N₄	2		Wikipedia	NIST
SiC	SiC	1	1	Wikipedia	NIST
SiCl4	SiCl₄	3	6	Wikipedia	NIST
Siderite	FeCO₃			Wikipedia
SiF4	SiF₄	5	5	Wikipedia	NIST
[SiF6]2-	[SiF₆]^2–	2	2		NIST
[SiH3]-	[H₃Si]^–		1		NIST
SiH4	SiH₄	5		Wikipedia	NIST
SiHCl3	SiHCl₃	1	1	Wikipedia	NIST
Silane	SiH₄	5		Wikipedia	NIST
Silane (generic)	R₃SiH	1
Silane grafted polyethylene		1	1		NIST
Silane grafted polyethylene, partially hydrolysed		1	1		NIST
Silane, tetramethyl	Si(CH₃)₄	1		Wikipedia	NIST
Sildenafil	Viagra			Wikipedia	NIST
Siliate ion hydrogen	[HSiO₃]^–				NIST
Silica	SiO₂	5	21	Wikipedia	NIST
Silicate ion	[SiO₃]^2–	1	3	Wikipedia	NIST
Silicate of soda	Na₂SiO₃ ^solution	2		Wikipedia	NIST
Silicic acid	Si(OH)₄	2		Wikipedia	NIST
Silicic acid, sodium salt	Na₂SiO₃ ^solution	2		Wikipedia	NIST
Silicochloroform	SiHCl₃	1	1	Wikipedia	NIST
Silicon	Si	6	7	Wikipedia	NIST
Silicon 28	²⁸Si	1	1	Wikipedia	NIST
Silicon carbide	SiC	1	1	Wikipedia	NIST
Silicon carbide fibers	SiC Fiber	1		Wikipedia	NIST
Silicon dioxide	SiO₂	5	21	Wikipedia	NIST
Silicon hexafluoride dianion	[SiF₆]^2–	2	2		NIST
Silicon hydride	SiH₄	5		Wikipedia	NIST
Silicon nitride	Si₃N₄	2		Wikipedia	NIST
Silicon steel	Silicon Steel			Wikipedia	NIST
Silicon tetrachloride	SiCl₄	3	6	Wikipedia	NIST
Silicon tetrafluoride	SiF₄	5	5	Wikipedia	NIST
Silicon tetrahydride	SiH₄	5		Wikipedia	NIST
Silicon(IV) oxide	SiO₂	5	21	Wikipedia	NIST
Silicone, dimethyl	[(CH₃)₂SiO]_n	1			NIST
Sillimanite	Al₂SiO₅
Silver	Ag	12	10	Wikipedia	NIST
Silver bromate	AgBrO₃	1			NIST
Silver bromide	AgBr	6	6	Wikipedia	NIST
Silver carbonate	Ag₂CO₃	3	2	Wikipedia	NIST
Silver chloride	AgCl	9	6	Wikipedia	NIST
Silver chromate(VI)	Ag₂CrO₄	2		Wikipedia	NIST
Silver cyanide	AgCN		1	Wikipedia	NIST
Silver difluoride	AgF₂	3	2	Wikipedia	NIST
Silver fluoride	AgF	3	3	Wikipedia	NIST
Silver glance	Ag₂S			Wikipedia
Silver iodate	AgIO₃	1		Wikipedia	NIST
Silver iodide	AgI	3	1	Wikipedia	NIST
Silver ion	Ag⁺	3	33		NIST
Silver nitrate	AgNO₃	1	11	Wikipedia	NIST
Silver oxalate	AgC₂O₄	1		Wikipedia	NIST
Silver oxide	Ag₂O	1	3	Wikipedia	NIST
Silver peroxide	Ag₂O₂			Wikipedia	NIST
Silver phosphate	Ag₃PO₄	1			NIST
Silver subfluoride	Ag₂F			Wikipedia	NIST
Silver suboxide	Ag₂O₂			Wikipedia	NIST
Silver sulfate	Ag₂SO₄	1	1	Wikipedia	NIST
Silver sulfide	Ag₂S	2		Wikipedia	NIST
Silver sulfide	Ag₂S			Wikipedia
Silver tetrafluoroborate	AgBF₄	1		Wikipedia	NIST
Silver thiocyanate	AgSCN	1			NIST
Silver, chinese	Chinese Silver			Wikipedia	NIST
Silver, difluoride	Ag₂F			Wikipedia	NIST
Silver, German	German Silver			Wikipedia	NIST
Silver, native	Ag _native			Wikipedia
Silver, U.S. coinage	Silver US Coinage				NIST
Silver(I) diammo ion	[Ag(NH₃)₂]⁺	3	3		NIST
Silver(I) dichloro ion	[AgCl₂]^–	2			NIST
Silver(I) dicyanide ion	[Ag(CN)₂]^–	6	3		NIST
Silver(I) dithiosulfate ion	[Ag(S₂O₃)₂]^3–	3			NIST
Silver(I) fluoride	AgF	3	3	Wikipedia	NIST
Silver(I,III) oxide	Ag₂O₂			Wikipedia	NIST
Silver(II) fluoride	AgF₂	3	2	Wikipedia	NIST
Silyl anion	[H₃Si]^–		1		NIST
Silyl anion (generic)	[R₃Si]^–		1
Silyl cation (generic)	R₃Si⁺
Silyl cation, trimethyl	[(CH₃)₃Si]⁺				NIST
Simmons-Smith reagent	Zn(Cu)		2		NIST
Simplest molecule possible	[H₂]^+•	2	1		NIST
Single cell protein	SCP	2		Wikipedia
Single electron transfer donor reducing agent (generic)
Single electron transfer oxidising agent (generic)
Single walled carbon nanotube	SWCN			Wikipedia	NIST
Singlet oxygen, 1st excited state	^1ΔO₂	2	1	Wikipedia	NIST
Singlet oxygen, 2nd excited state	¹Σ⁺_gO₂			Wikipedia	NIST
SiO2	SiO₂	5	21	Wikipedia	NIST
[SiO3]2-	[SiO₃]^2–	1	3	Wikipedia	NIST
[SiO4]4-	[SiO₄]^4–		2	Wikipedia	NIST
Sioplas		1			NIST
Skutterudite	(CoNi)As₃			Wikipedia
Slag	CaSiO₃	4		Wikipedia	NIST
Slag fiber	Slag Fiber
Slag wool	Slag Fiber
Slaked lime	Ca(OH)₂	7	14	Wikipedia	NIST
Sleeping potion (generic)	Hypnotic			Wikipedia
Sm	Sm			Wikipedia	NIST
Sm2O3	Sm₂O₃			Wikipedia	NIST
Smaltite	Co₂As₃		1	Wikipedia
SmBr2	SmBr₂				NIST
SmBr3	SmBr₃.6H₂O				NIST
SmCl2	SmCl₂			Wikipedia	NIST
SmCl3	SmCl₃			Wikipedia	NIST
SmF2	SmF₂				NIST
SmF3	SmF₃			Wikipedia	NIST
SmI2	SmI₂			Wikipedia	NIST
SmI3	SmI₃				NIST
Smithsonite	ZnCO₃		1	Wikipedia
Sn	Sn	1	3	Wikipedia	NIST
(SN)n	(SN)_x	1		Wikipedia	NIST
Sn2+	Sn²⁺	3	3		NIST
Sn4+	Sn⁴⁺		2		NIST
[Sn5]2-					NIST
SnBr2	SnBr₂			Wikipedia	NIST
SnBr4	SnBr₄				NIST
SnCl2	SnCl₂	1		Wikipedia	NIST
SnCl4	SnCl₄		3	Wikipedia	NIST
[SnCl5]-	[SnCl₅]^–				NIST
[SnCl6]2-	[SnCl₆]^2–	1			NIST
SnF2	SnF₂			Wikipedia	NIST
SnF4	SnF₄		1		NIST
[SnF6]2-	[SnF₆]^2–	1			NIST
SNG	CH₄	14	32	Wikipedia	NIST
SnH4	SnH₄	1		Wikipedia	NIST
SnI2	SnI₂			Wikipedia	NIST
SnI4	SnI₄			Wikipedia	NIST
SnO	SnO	1		Wikipedia	NIST
SnO2	Sn₂O	2		Wikipedia	NIST
SO2	SO₂	31	45	Wikipedia	NIST
SO2Cl2	SO₂Cl₂	1	2	Wikipedia	NIST
SO3	SO₃	10	12	Wikipedia	NIST
[SO3]2-	[SO₃]^2–	2	7	Wikipedia	NIST
[SO4]2-	[SO₄]^2–	18	22	Wikipedia	NIST
Soap	Soap	1		Wikipedia
SOBr2	SOBr₂	1	1	Wikipedia	NIST
SOCl2	SOCl₂	9	10	Wikipedia	NIST
Soda	Na₂CO₃	11	17	Wikipedia	NIST
Soda nitre	NaNO₃	6	6	Wikipedia	NIST
Soda nitre	NaNO₃			Wikipedia
Soda-lime glass	Soda-Lime Glass	1		Wikipedia
Sodalite	Na₈(Al₆Si₆ O₂₄)Cl₂			Wikipedia
Sodamide	NaNH₂	2	3	Wikipedia	NIST
Sodium	Na	5	33	Wikipedia	NIST
Sodium 23	²³Na	1		Wikipedia	NIST
Sodium 5-ethyl-5-(1-methylbutyl)-2-thiobarbiturate				Wikipedia	NIST
Sodium acetate	CH₃COONa	4	2	Wikipedia	NIST
Sodium acid carbonate	NaHCO₃	4	3	Wikipedia	NIST
Sodium alanate	NaAlH₄			Wikipedia	NIST
Sodium aluminate	NaAlO₂	1		Wikipedia	NIST
Sodium aluminium hexafluorate	Na₃AlF₆	3	2	Wikipedia	NIST
Sodium aluminium hydride	NaAlH₄			Wikipedia	NIST
Sodium amide	NaNH₂	2	3	Wikipedia	NIST
Sodium antimonide	Na₃Sb	2	1		NIST
Sodium argentocyanide	Na[Ag(CN)₂]	2			NIST
Sodium arsenide	Na₃As	2	1		NIST
Sodium aurocyanide	Na[Au(CN)₂]	2			NIST
Sodium azide	NaN₃	3	2	Wikipedia	NIST
Sodium bicarbonate	NaHCO₃	4	3	Wikipedia	NIST
Sodium bisulfite	NaHSO₃	1		Wikipedia	NIST
Sodium bisulfite	NaHSO₃	2		Wikipedia	NIST
Sodium borate	Na₂[B₄O₅(OH)₄] .8H₂O	1	4	Wikipedia	NIST
Sodium borate, fused	Na₂B₄O₇	1	1	Wikipedia	NIST
Sodium borohydride	NaBH₄	3	18	Wikipedia	NIST
Sodium bromate	NaBrO₃	2	1	Wikipedia	NIST
Sodium bromide	NaBr	9	6	Wikipedia	NIST
Sodium carbide	NaCâ‰¡CNa	2			NIST
Sodium carbonate	Na₂CO₃	11	17	Wikipedia	NIST
Sodium carbonate perhydrate	2Na₂CO₃.3H₂O₂			Wikipedia	NIST
Sodium chlorate(V)	NaClO₃	4	5	Wikipedia	NIST
Sodium chloride	NaCl	42	12	Wikipedia	NIST
Sodium chlorite	NaClO₂	4	1	Wikipedia	NIST
Sodium chlorite(III)	NaClO₂	4	1	Wikipedia	NIST
Sodium chromate	Na₂CrO₄	2	2		NIST
Sodium cyanide	NaCN	2	4	Wikipedia	NIST
Sodium cyanoborohydride	NaBH₃CN			Wikipedia	NIST
Sodium cyanotrihydrioborate	NaBH₃CN			Wikipedia	NIST
Sodium cyclopentadienylide		1			NIST
Sodium dichromate	Na₂Cr₂O₇ .H₂O	3	4	Wikipedia	NIST
Sodium disulfite		4	1		NIST
Sodium dithionate		1		Wikipedia	NIST
Sodium dithionite		5		Wikipedia	NIST
Sodium ethanoate	CH₃COONa	4	2	Wikipedia	NIST
Sodium fluoborate	NaBF₄	3			NIST
Sodium fluoride	NaF	6	1	Wikipedia	NIST
Sodium formate	HCOONa	5	2	Wikipedia	NIST
Sodium halide (AS/A2 generic)
Sodium hexafluoroaluminate	Na₃AlF₆	3	2	Wikipedia	NIST
Sodium hexafluorosilicate	Na₂[SiF₆]	1	1		NIST
Sodium hydride	NaH	2	7	Wikipedia	NIST
Sodium hydroborate	NaBH₄	3	18	Wikipedia	NIST
Sodium hydrogen carbonate	NaHCO₃	4	3	Wikipedia	NIST
Sodium hydrogen sulfide	NaSH	3			NIST
Sodium hydrogen sulfite	NaHSO₃	2		Wikipedia	NIST
Sodium hydroxide	NaOH	17	61	Wikipedia	NIST
Sodium hydroxide solution	NaOH(aq)	5	37	Wikipedia	NIST
Sodium hypochlorite solution	NaOCl(aq)	4	5	Wikipedia	NIST
Sodium hyposulfite	Na₂S₂O₃	5	4	Wikipedia	NIST
Sodium iodide	NaI	6	5	Wikipedia	NIST
Sodium ion	Na⁺	62	65		NIST
Sodium metabisulphite		4	1		NIST
Sodium metaborate	NaBO₂ Na₃[B₃O₆]	4	1		NIST
Sodium methanoate	HCOONa	5	2	Wikipedia	NIST
Sodium methoxide	NaOCH₃	2	4	Wikipedia	NIST
Sodium methylate	NaOCH₃	2	4	Wikipedia	NIST
Sodium nitrate	NaNO₃	6	6	Wikipedia	NIST
Sodium nitrite	NaNO₂	7	3	Wikipedia	NIST
Sodium orthoborate	Na₃BO₃	1		Wikipedia	NIST
Sodium orthosilicate	Na₂SiO₃ ^solution	2		Wikipedia	NIST
Sodium oxalate		2	1	Wikipedia	NIST
Sodium oxide	Na₂O	5	5	Wikipedia	NIST
Sodium p-toluenesulfonchloramide				Wikipedia	NIST
Sodium perborate	Na₂ [B₂(OH)₄(O₂)₂] .6H₂O	1	1	Wikipedia	NIST
Sodium percarbonate	2Na₂CO₃.3H₂O₂			Wikipedia	NIST
Sodium perchlorate	NaClO₄	2	2	Wikipedia	NIST
Sodium peroxide	Na₂O₂	3	7	Wikipedia	NIST
Sodium peroxoborate	Na₂ [B₂(OH)₄(O₂)₂] .6H₂O	1	1	Wikipedia	NIST
Sodium phosphate, tribasic	Na₃PO₄	1		Wikipedia	NIST
Sodium phosphide	Na₃P	2		Wikipedia	NIST
Sodium pyrosulfite		4	1		NIST
Sodium secondary alkane sulfonate		2		Wikipedia	NIST
Sodium selenide	Na₂Se	2			NIST
Sodium sesquicarbonate	Na₂CO₃.NaHCO₃ .2H₂O			Wikipedia	NIST
Sodium silicate solution	Na₂SiO₃ ^solution	2		Wikipedia	NIST
Sodium stibnide	Na₃Sb	2	1		NIST
Sodium sulfate	Na₂SO₄	14	4	Wikipedia	NIST
Sodium sulfate decahydrate	Na₂SO₄ .10H₂O			Wikipedia	NIST
Sodium sulfide	Na₂S	4	3	Wikipedia	NIST
Sodium sulfide nonahydrate	Na₂S.9H₂O	1		Wikipedia	NIST
Sodium sulfite	Na₂SO₃	3	6	Wikipedia	NIST
Sodium sulfite septahydrate	Na₂SO₃ .7H₂O	1		Wikipedia	NIST
Sodium superoxide	NaO₂	2		Wikipedia	NIST
Sodium telluride	Na₂Te	2			NIST
Sodium tetraborate tetrahydrate	Na₂[B₄O₅(OH)₄] .8H₂O	1	4	Wikipedia	NIST
Sodium tetrafluoroborate	NaBF₄	3			NIST
Sodium tetrahydridoborate(III)	NaBH₄	3	18	Wikipedia	NIST
Sodium tetrahydroxyaluminate	Na[Al(OH)₄]	2	1		NIST
Sodium tetrathionate	Na₂S₄O₆	2			NIST
Sodium thiopental				Wikipedia	NIST
Sodium thiosulfate	Na₂S₂O₃	5	4	Wikipedia	NIST
Sodium tripolyphosphate		1		Wikipedia	NIST
Sodium-lead alloy	PbNa		1	Wikipedia	NIST
SOF2	SOF₂	1	1	Wikipedia	NIST
Soft Lewis acid (generic)				Wikipedia
Soft Lewis base (generic)				Wikipedia
Soft margarine	Soft Margarine	1		Wikipedia	NIST
Solder, plumber's	Plumber's Solder				NIST
Soluble glass	Na₂SiO₃ ^solution	2		Wikipedia	NIST
Solution (generic)	Homogeneous Mixture			Wikipedia
Solvent separated ion-pair (generic)
Soman				Wikipedia	NIST
Sorbitol		1		Wikipedia	NIST
D-Sorbose				Wikipedia	NIST
SP3, SP2 and SP FMO (generic)
Spectator anion Lewis base (generic)	X^– ^{Spectator Anion}		1
Spectator Cation (generic)	⨁ ^{Spectator Cation}
Sphalerite	ZnS		1	Wikipedia
Sphene	CaTiSiO₅			Wikipedia
Spinel	MgAl₂O₄			Wikipedia
Spirits of salts	HCl(conc)	2	9	Wikipedia	NIST
Spiro[2.2]-1-oxopentane		1	1		NIST
Spodumene	LiAl(SiO₃)₂		1	Wikipedia
Square bipyramidal molecular shape (generic)				Wikipedia
Square butane		2	1	Wikipedia	NIST
Square planar molecular shape (generic)				Wikipedia
Square pyramidal molecular shape (generic)				Wikipedia
Sr	Sr	1	15	Wikipedia	NIST
Sr(NH2)2	Sr(NH₂)₂	2			NIST
Sr(OH)2	Sr(OH)₂	6	1	Wikipedia	NIST
Sr2+	Sr²⁺	3	18		NIST
Sr3N2	Sr₃N₂	2	1	Wikipedia	NIST
Sr3P2	Sr₃P₂	2			NIST
SrBr2	SrBr₂	2		Wikipedia	NIST
SrC2	SrC₂	3	1		NIST
SrC2O4	SrC₂O₄	1			NIST
SrCl2	SrCl₂	2		Wikipedia	NIST
SrCO3	SrCO₃	1	1	Wikipedia	NIST
SrF2	SrF₂	2		Wikipedia	NIST
SrH2	SrH₂	2	2		NIST
SrI2	SrI₂	2		Wikipedia	NIST
SrO	SrO	4	2	Wikipedia	NIST
SrS	SrS	3			NIST
SrSe	SrSe	2			NIST
SrSO4	SrSO₄	1	2	Wikipedia	NIST
SrTe	SrTe	2			NIST
Stainless steel	Stainless Steel			Wikipedia	NIST
Stannane	SnH₄	1		Wikipedia	NIST
Stannic bromide	SnBr₄				NIST
Stannic chloride	SnCl₄		3	Wikipedia	NIST
Stannic fluoride	SnF₄		1		NIST
Stannic iodide	SnI₄			Wikipedia	NIST
Stannic ion	Sn⁴⁺		2		NIST
Stannic oxide	Sn₂O	2		Wikipedia	NIST
Stannous bromide	SnBr₂			Wikipedia	NIST
Stannous chloride	SnCl₂	1		Wikipedia	NIST
Stannous fluoride	SnF₂			Wikipedia	NIST
Stannous iodide	SnI₂			Wikipedia	NIST
Stannous ion	Sn²⁺	3	3		NIST
Stannous oxide	SnO	1		Wikipedia	NIST
Starch	Starch		3	Wikipedia
Staurolite	(Fe,Mg)₂(AlFe)₉ Si₄O₂₀(O,OH)			Wikipedia
Steam	H₂O(g)	3	1	Wikipedia	NIST
Stearic acid	CH₃(CH₂)₁₆COOH	1			NIST
Steel	Steel			Wikipedia	NIST
Steel, silicon	Silicon Steel			Wikipedia	NIST
Steel, stainless	Stainless Steel			Wikipedia	NIST
Steel, sterling stainless T	Sterling Stainless Steel T			Wikipedia	NIST
Steel, tungsten	Tungsten Steel				NIST
Sterling stainless steel T	Sterling Stainless Steel T			Wikipedia	NIST
Stibane	H₃Sb	7	1	Wikipedia	NIST
Stibine	H₃Sb	7	1	Wikipedia	NIST
Stibine anion	[H₂Sb]^–		1		NIST
Stibine, protonated	[SbH₄]⁺	1			NIST
Stibium	Sb	1	8	Wikipedia	NIST
Stibnide ion	Sb^3–		5		NIST
Stibnite	Sb₂S₃			Wikipedia
Stibonium ion	[SbH₄]⁺	1			NIST
cis Stilbene		1		Wikipedia	NIST
trans Stilbene			1	Wikipedia	NIST
Stilbite-Ca	NaCa₄ (Si₂₇Al₉)O₇₂ .28(H₂O)			Wikipedia
Stimulant (generic)	Stimulant			Wikipedia
STPP		1		Wikipedia	NIST
Strange quark	s		3	Wikipedia
Strong acid (AS/A2 generic)				Wikipedia
Strong base (AS/A2 generic)				Wikipedia
Strontia	SrO	4	2	Wikipedia	NIST
Strontianite	SrCO₃			Wikipedia
Strontium	Sr	1	15	Wikipedia	NIST
Strontium acetylide	SrC₂	3	1		NIST
Strontium amide	Sr(NH₂)₂	2			NIST
Strontium bromide	SrBr₂	2		Wikipedia	NIST
Strontium carbide	SrC₂	3	1		NIST
Strontium carbonate	SrCO₃	1	1	Wikipedia	NIST
Strontium chloride	SrCl₂	2		Wikipedia	NIST
Strontium fluoride	SrF₂	2		Wikipedia	NIST
Strontium hydride	SrH₂	2	2		NIST
Strontium hydroxide	Sr(OH)₂	6	1	Wikipedia	NIST
Strontium iodide	SrI₂	2		Wikipedia	NIST
Strontium ion	Sr²⁺	3	18		NIST
Strontium nitride	Sr₃N₂	2	1	Wikipedia	NIST
Strontium oxalate	SrC₂O₄	1			NIST
Strontium oxide	SrO	4	2	Wikipedia	NIST
Strontium phosphide	Sr₃P₂	2			NIST
Strontium selenide	SrSe	2			NIST
Strontium sulfate	SrSO₄	1	2	Wikipedia	NIST
Strontium sulfide	SrS	3			NIST
Strontium telluride	SrTe	2			NIST
(-) Strychnine			1	Wikipedia	NIST
(-) Strychnine, protonated		1		Wikipedia	NIST
Styrene		2	4	Wikipedia	NIST
Styrene-butadiene rubber	Styrene-Butadiene Rubber	1		Wikipedia	NIST
Succinate (hydrogen) ion		1	1		NIST
Succinate - coenzyme Q reductase	Succinate Dehydrogenase		1	Wikipedia
Succinate dehydrogenase	Succinate Dehydrogenase		1	Wikipedia
Succinate dianion			3		NIST
Succinic acid		2	2	Wikipedia	NIST
Succinimide		2		Wikipedia	NIST
Succinimide anion			1	Wikipedia	NIST
Succinnnic anhydride		2			NIST
Succinonitrile		4	2		NIST
Succinyl coenzyme A		1	1	Wikipedia	NIST
Succinyl coenzyme A synthetase	Succinyl-CoA Synthetase		1	Wikipedia
Succinyl oxide		2			NIST
Succinyl-CoA		1	1	Wikipedia	NIST
Sucrose	Sucrose		1	Wikipedia	NIST
Sugar	Sucrose		1	Wikipedia	NIST
Sulfamic acid	H₂NSO₃H	2		Wikipedia	NIST
Sulfamide	H₂NSO₂NH₂		1	Wikipedia	NIST
Sulfane	H₂S	10	22	Wikipedia	NIST
Sulfate ion	[SO₄]^2–	18	22	Wikipedia	NIST
Sulfenium ion (generic)	[R–S]⁺		2
Sulfenium, hydrogen ion	[HS]⁺				NIST
Sulfide ion	S^2–	6	29	Wikipedia	NIST
Sulfide, dialkyl (generic)	R₂S	2	5
Sulfide, hydrogen radical	HS•				NIST
Sulfinate (phenyl) ester, methyl		1			NIST
Sulfinate anion (generic)	[R–SO₂]^–	1	2
Sulfinate ion, phenyl			2		NIST
Sulfinic acid (generic)		2
Sulfinimidic acid (generic)
Sulfinohydrazonic acid (generic)
Sulfinohydroximic acid (generic)
Sulfite ion	[SO₃]^2–	2	7	Wikipedia	NIST
Sulfocyanic acid	N≡C–SH	1		Wikipedia	NIST
Sulfolane		1		Wikipedia	NIST
Sulfolene		1	1	Wikipedia	NIST
Sulfone (generic)		4		Wikipedia
Sulfone, benzylphenyl		1			NIST
Sulfone, methylphenyl		1			NIST
Sulfonic acid (generic)	R–SO₃H	1	3	Wikipedia
Sulfonimidic acid (generic)
Sulfonium ion	[SH₃]⁺	1			NIST
Sulfonium ion, alkyl (generic)	[R–SH₂]⁺	2
Sulfonium ion, dialkyl (generic)	[R₂SH]⁺	1
Sulfonium ion, diethyl	[(CH₃CH₂)₂SH]⁺	1			NIST
Sulfonium ion, dimethyl	[(CH₃)₂SH]⁺	1			NIST
Sulfonium ion, dimethyl hydroxy		1			NIST
Sulfonium ion, ethyl	[CH₃CH₂SH₂]⁺	1			NIST
Sulfonium ion, methyl	[CH₃–SH₂]⁺	2			NIST
Sulfonium ion, trialkyl (generic)	[R₃S]⁺	1
Sulfonium ion, trimethyl	[(CH₃)₃S]⁺				NIST
Sulfonodiimidic acid (generic)
Sulfonohydrazonic acid (generic)
Sulfonohydroximic acid (generic)
Sulfonylchloride (generic)	RSO₂Cl	4	1
Sulfoxide (generic)		1	2	Wikipedia
Sulfoxonium iodide, trimethyl		2			NIST
Sulfoxonium ion, trimethyl		1	2		NIST
Sulfoxonium ylid, trimethyl		2	3		NIST
Sulfur	S	13	36	Wikipedia	NIST
Sulfur 31	³¹S	1		Wikipedia	NIST
Sulfur 32	³²S	2	1	Wikipedia	NIST
Sulfur chloride	Cl–S–S–Cl	2	5	Wikipedia	NIST
Sulfur dichloride	SCl₂	2	4	Wikipedia	NIST
Sulfur dioxide	SO₂	31	45	Wikipedia	NIST
Sulfur hexafluoride	SF₆	5		Wikipedia	NIST
Sulfur monochloride	Cl–S–S–Cl	2	5	Wikipedia	NIST
Sulfur monofluoride	S₂F₂				NIST
Sulfur tetrachloride	SCl₄		1		NIST
Sulfur tetrafluoride	SF₄	3	5	Wikipedia	NIST
Sulfur trioxide	SO₃	10	12	Wikipedia	NIST
Sulfur, di	S₂	1		Wikipedia	NIST
Sulfur, native	S _native		1	Wikipedia
Sulfur, rhombic	S₈	3	1	Wikipedia	NIST
Sulfuric acid	H₂SO₄	25	74	Wikipedia	NIST
Sulfuric acid (conc.)	H₂SO₄	25	74	Wikipedia	NIST
Sulfuric(IV) acid	H₂SO₃	4	2	Wikipedia	NIST
Sulfuric acid, aqueous	H₂SO₄(aq)	3	11	Wikipedia	NIST
Sulfuric acid, di	H₂S₂O₇	1	6	Wikipedia	NIST
Sulfuric acid, per		2	2	Wikipedia	NIST
Sulfurous acid	H₂SO₃	4	2	Wikipedia	NIST
Sulfurous acid, di		1			NIST
Sulfuryl chloride	SO₂Cl₂	1	2	Wikipedia	NIST
Sulfuryl fluoride	SF₂O₂	1		Wikipedia	NIST
Sulphamic acid	H₂NSO₃H	2		Wikipedia	NIST
Sulphate ion	[SO₄]^2–	18	22	Wikipedia	NIST
Sulphide ion	S^2–	6	29	Wikipedia	NIST
Sulphite ion	[SO₃]^2–	2	7	Wikipedia	NIST
Sulphonic acid (generic)	R–SO₃H	1	3	Wikipedia
Sulphur	S	13	36	Wikipedia	NIST
Sulphur dioxide	SO₂	31	45	Wikipedia	NIST
Sulphur, S8	S₈	3	1	Wikipedia	NIST
Sulphur trioxide	SO₃	10	12	Wikipedia	NIST
Sulphuric acid (conc.)	H₂SO₄	25	74	Wikipedia	NIST
Sulphuric acid, aqueous	H₂SO₄(aq)	3	11	Wikipedia	NIST
Sunflower oil	Sunflower Oil		2	Wikipedia	NIST
Superoxide ion	[O–O]^–		5	Wikipedia	NIST
SWCN	SWCN			Wikipedia	NIST
Sylvite	KCl		1	Wikipedia
Syngas	CO/H₂ ^Syngas	6	6	Wikipedia	NIST
Synthesis gas	CO/H₂ ^Syngas	6	6	Wikipedia	NIST
Synthetic natural gas	CH₄	14	32	Wikipedia	NIST
Synthetic rubber		1		Wikipedia	NIST
T (threonine)		1	1	Wikipedia	NIST
T (thymine)	Thymine T		1	Wikipedia	NIST
T+	T⁺			Wikipedia	NIST
T-	T^–			Wikipedia	NIST
T-shape molecular shape, AX3E3 (generic)				Wikipedia
T-shaped molecular shape, AX3E2 (generic)				Wikipedia
T2	T₂			Wikipedia	NIST
Ta	Ta			Wikipedia	NIST
Ta2O5	Ta₂O₅			Wikipedia	NIST
Ta3+	Ta³⁺				NIST
TaBr3	TaBr₃				NIST
TaBr4	TaBr₄				NIST
TaBr5	TaBr₅			Wikipedia	NIST
Tabun				Wikipedia	NIST
TaCl3	TaCl₃				NIST
TaCl4	TaCl₄				NIST
TaCl5	TaCl₅			Wikipedia	NIST
TaF5	TaF₅			Wikipedia	NIST
D-Tagatose				Wikipedia	NIST
TaI4	TaI₄				NIST
TaI5	TaI₅				NIST
Talc	Mg₃Si₄O₁₀ (OH)₂			Wikipedia
TAlO	TAlO				NIST
D-Talose		1		Wikipedia	NIST
Tantalic acid anhydride	Ta₂O₅			Wikipedia	NIST
Tantalite	(Fe,Mn) (Ta,Nb)₂O₆			Wikipedia
Tantalum	Ta			Wikipedia	NIST
Tantalum pentoxide	Ta₂O₅			Wikipedia	NIST
Tantalum(III) bromide	TaBr₃				NIST
Tantalum(III) chloride	TaCl₃				NIST
Tantalum(III) Ion	Ta³⁺				NIST
Tantalum(IV) bromide	TaBr₄				NIST
Tantalum(IV) chloride	TaCl₄				NIST
Tantalum(IV) iodide	TaI₄				NIST
Tantalum(IV) oxide	TaO₂				NIST
Tantalum(V) bromide	TaBr₅			Wikipedia	NIST
Tantalum(V) chloride	TaCl₅			Wikipedia	NIST
Tantalum(V) fluoride	TaF₅			Wikipedia	NIST
Tantalum(V) iodide	TaI₅				NIST
Tantalum(V) oxide	Ta₂O₅			Wikipedia	NIST
TaO2	TaO₂				NIST
Tar acid	Tar Acid	1			NIST
d/l-Tartaric acid		2		Wikipedia	NIST
Tartarus vitriolatus	K₂SO₄	2	1	Wikipedia	NIST
Tartrate (hydrogen) ion		1	1		NIST
Tartrate dianion			1		NIST
TATP		1	1	Wikipedia	NIST
Tau	τ			Wikipedia
Tau antineutrino	_— ν_τ			Wikipedia
Tau neutrino	ν_τ			Wikipedia
Tau, anti	_— τ			Wikipedia
Tb	Tb			Wikipedia	NIST
Tb2O3	Tb₂O₃				NIST
TbBr3	TbBr₃				NIST
TbCl3	TbCl₃				NIST
TbF3	TbF₃				NIST
TbI3	TbI₃				NIST
TBME		1		Wikipedia	NIST
tBu3P		1			NIST
tBuBr	(CH₃)₃CBr	4	2		NIST
tBuCl		5	1		NIST
tBuCOOH	(CH₃)₃C–COOH	1			NIST
tBuF		2			NIST
tBuI	(CH₃)₃CI	4			NIST
tBuNH2	(CH₃)₃C–NH₂		1		NIST
tBuOH	(CH₃)₃COH	7	11	Wikipedia	NIST
tBuOK		2	2		NIST
[tBuO]-	[(CH₃)₃C–O]^–	1	2		NIST
Tc	Tc			Wikipedia	NIST
Tc2O7	Tc₂O₇			Wikipedia	NIST
TcCl4	TcCl₄				NIST
TcF5	TcF₅				NIST
TcF6	TcF₆			Wikipedia	NIST
TCNE			1	Wikipedia	NIST
TCNQ			1	Wikipedia	NIST
TcO2	TcO₂				NIST
TcO3	TcO₃				NIST
TDI		1	1	Wikipedia	NIST
Te	Te		15	Wikipedia	NIST
Te(OH)6	Te(OH)₆	1	1	Wikipedia	NIST
Te2-	Te^2–	1	10		NIST
TeBr2	TeBr₂			Wikipedia	NIST
TeBr4	TeBr₄	1		Wikipedia	NIST
Technetium	Tc			Wikipedia	NIST
Technetium(IV) chloride	TcCl₄				NIST
Technetium(IV) oxide	TcO₂				NIST
Technetium(V) fluoride	TcF₅				NIST
Technetium(VI) fluoride	TcF₆			Wikipedia	NIST
Technetium(VI) oxide	TcO₃				NIST
Technetium(VII) oxide	Tc₂O₇			Wikipedia	NIST
TeCl2	TeCl₂			Wikipedia	NIST
TeCl4	TeCl₄	1		Wikipedia	NIST
TeF6	TeF₆	1	1	Wikipedia	NIST
Teflon		1		Wikipedia	NIST
TeH2	H₂Te	1	2	Wikipedia	NIST
TeI4	TeI₄	1		Wikipedia	NIST
Tellane	H₂Te	1	2	Wikipedia	NIST
Telluric acid	Te(OH)₆	1	1	Wikipedia	NIST
Telluric bromide	TeBr₄	1		Wikipedia	NIST
Telluric chloride	TeCl₄	1		Wikipedia	NIST
Telluric iodide	TeI₄	1		Wikipedia	NIST
Telluride (generic)	R–TeH	2	1
Telluride anion (generic)	R–TeH		2
Tellurite (hydrogen) ion	[HTeO₃]^–	1	1		NIST
Tellurite ion	[TeO₃]^2–		1	Wikipedia	NIST
Tellurium	Te		15	Wikipedia	NIST
Tellurium dianion	Te^2–	1	10		NIST
Tellurium dibromide	TeBr₂			Wikipedia	NIST
Tellurium dichloride	TeCl₂			Wikipedia	NIST
Tellurium dioxide	TeO₂	1		Wikipedia	NIST
Tellurium hexafluoride	TeF₆	1	1	Wikipedia	NIST
Tellurium hydride	H₂Te	1	2	Wikipedia	NIST
Tellurium tetrabromide	TeBr₄	1		Wikipedia	NIST
Tellurium tetrachloride	TeCl₄	1		Wikipedia	NIST
Tellurium tetraiodide	TeI₄	1		Wikipedia	NIST
Tellurium trioxide	TeO₃			Wikipedia	NIST
Telluroether (generic)	H₂Te	1	1
Telluronium ion	[TeH₃]⁺	1			NIST
Telluronium ion, alkyl (generic)	[R–TeH₂]⁺	2
Telluronium ion, dialkyl (generic)	[R₂TeH]⁺	1
Tellurous acid	H₂TeO₃	1		Wikipedia	NIST
Tellurous bromide	TeBr₂			Wikipedia	NIST
Tellurous chloride	TeCl₂			Wikipedia	NIST
Tennantite	(Cu,Fe)₁₂As₄S₁₃			Wikipedia
Tennessine	Ts			Wikipedia	NIST
TeO2	TeO₂	1		Wikipedia	NIST
TeO3	TeO₃			Wikipedia	NIST
[TeO3]2-	[TeO₃]^2–		1	Wikipedia	NIST
Teraphthalic_acid		2	2	Wikipedia	NIST
Terbia	Tb₂O₃				NIST
Terbium	Tb			Wikipedia	NIST
Terbium bromide	TbBr₃				NIST
Terbium chloride	TbCl₃				NIST
Terbium fluoride	TbF₃				NIST
Terbium iodide	TbI₃				NIST
Terbium oxide	Tb₂O₃				NIST
Terpene (generic)	Terpene			Wikipedia
alpha-Terpene			1	Wikipedia	NIST
Tertiary alcohol (AS/A2 generic)			1	Wikipedia
Tertiary alkyl amine (generic)	R₃N	1	3
Tertiary amide (generic)		2
Tertiary amine (AS/A2 generic)				Wikipedia
tertiary Butyl function (generic)
Terylene	Terylene	2		Wikipedia	NIST
Tetraamminodiaquacopper(II) ion	[Cu(NH₃)₄(H₂O)₂]²⁺	2			NIST
Tetraaquadihydroxycobalt(II)	Co(H₂O)₄(OH)₂ Co(OH)₂	3	1		NIST
Tetraaquadihydroxycopper(II)	Cu(H₂O)₄(OH)₂ Cu(OH)₂	3	1		NIST
Tetraaquadihydroxyiron(II)	Fe(H₂O)₄(OH)₂ Fe(OH)₂	4	1		NIST
Tetraboron carbide	B₄C	4		Wikipedia	NIST
Tetrabromoaluminate	[AlBr₄]^–				NIST
Tetrabromoborate	[BBr₄]^–				NIST
Tetrabromoferrate ion	[FeBr₄]^–	2	1		NIST
Tetrabromoiron(III) ion	[FeBr₄]^–	2	1		NIST
Tetracarbonylcobalt(0)	Co₂(CO)₈	1	1		NIST
Tetracarbonylethylcobalt(I)		1	1		NIST
Tetracarbonylhydrocobalt(I)	HCo(CO)₄	1	1		NIST
Tetracene					NIST
1,1,2,2- Tetrachloroalkane (generic)		2
Tetrachloroaluminium ion	[AlCl₄]^–	16	4		NIST
Tetrachloroborate	[BCl₄]^–				NIST
Tetrachlorocobolt(II) ion	[CoCl₄]^2–	3	2		NIST
Tetrachlorocopper(I) ion	[CuCl₄]^3–	2	1		NIST
Tetrachlorocopper(II) ion	[CuCl₄]^2–	4	1		NIST
Tetrachloroethylene	Cl₂C=CCl₂	4		Wikipedia	NIST
Tetrachlorogold(III)	[AuCl₄]^–	1			NIST
Tetrachloromethane	CCl₄	11	5	Wikipedia	NIST
Tetrachlorosilane	SiCl₄	3	6	Wikipedia	NIST
5,5,6,6-Tetracyano-5,5a,6,7-tetrahydrophenanthrene		1			NIST
7,7,8,8,- Tetracyano-p-quinodimethane			1	Wikipedia	NIST
Tetracyanoethylene			1	Wikipedia	NIST
Tetradecane			1	Wikipedia	NIST
Tetradecanoic acid	CH₃(CH₂)₁₂COOH	2		Wikipedia	NIST
Tetra-ethyl lead	Pb(CH₂CH₃)₄	1		Wikipedia	NIST
Tetrafluoroaluminate	[AlF₄]^–				NIST
Tetrafluoroberyllate ion	[BeF₄]^2–				NIST
Tetrafluoroborate ion	[BF₄]^–	7	9	Wikipedia	NIST
Tetrafluoroboric acid	H⁺ [BF₄]^–	2		Wikipedia	NIST
Tetrafluoroboric acid (aqueous)	HBF₄(aq)	2	1	Wikipedia	NIST
Tetrafluoroethylene	F₂C=CF₂	1	1	Wikipedia	NIST
Tetrafluoromethane	CF₄	4	1	Wikipedia	NIST
Tetrafluoromethane/Water Complex		1			NIST
Tetrahedral molecular shape (generic)				Wikipedia
Tetrahedrite	(Cu,Fe)₁₂Sb₄S₁₃			Wikipedia
1,2,3,4-Tetrahydracarbazole		1			NIST
Tetrahydridoaluminate ion	[AlH₄]^–	1	2		NIST
Tetrahydridoborate ion	[BH₄]^–	1	3		NIST
Tetrahydroaluminate	[AlH₄]^–	1	2		NIST
Tetrahydroborate ion	[BH₄]^–	1	3		NIST
Tetrahydrocannabinol				Wikipedia	NIST
Tetrahydrofuran		5	5	Wikipedia	NIST
Tetrahydrofuran, protonated		1			NIST
Tetrahydrogallinate ion	[GaH₄]^–	1			NIST
Tetrahydroindate ion	[InH₄]^–	1			NIST
1,2,3,4-Tetrahydronaphthalene		2		Wikipedia	NIST
Tetrahydronickel(II) ion	[NiH₄]^4–	1	1		NIST
Tetrahydropyrrole			1	Wikipedia	NIST
Tetrahydrothiophene 1,1-dioxide		1		Wikipedia	NIST
Tetrahydroxyaluminate ion	[Al(OH)₄]^–	8		Wikipedia	NIST
Tetrahydroxyberyllium ion	[Be(OH)₄]^2–	4			NIST
Tetrahydroxyborate ion	[B(OH)₄]^–	5			NIST
Tetrahydrozinc(II) ion	[ZnH₄]^2–	1	1		NIST
Tetraiodoaluminate	[AlI₄]^–				NIST
Tetraiodoborate	[BI₄]^–				NIST
Tetrakis(triphenyl phosphine)palladium[0]	[(C₆H₅)₃P]₄Pd	1			NIST
Tetralin		2		Wikipedia	NIST
alpha-Tetralone		4			NIST
1,1,3,3-Tetramethyl guanidine					NIST
Tetramethylammonium ion	[(CH₃)₄N]⁺	2	3		NIST
Tetramethylene		2	1	Wikipedia	NIST
Tetramethylene sulfone		1		Wikipedia	NIST
Tetramethylenedisulfotetramine		1		Wikipedia	NIST
N,N,N, N-Tetramethylethylene diamine					NIST
Tetramethylethylenediamine/Methyl lithium complex					NIST
Tetramethylsilane	Si(CH₃)₄	1		Wikipedia	NIST
Tetraphene					NIST
Tetraphosphoric acid			1	Wikipedia	NIST
Tetrasulfide dianion	[S–S–S–S]^2–				NIST
Tetrasulfide tetranitride	S₄N₄	1	1		NIST
Tetrathiafulvalene			1	Wikipedia	NIST
Tetrathionate ion		1	3	Wikipedia	NIST
Tetrathionic acid		1			NIST
TETS		1		Wikipedia	NIST
TFF			1	Wikipedia	NIST
Th	Th			Wikipedia	NIST
Thallium	Tl	1	6	Wikipedia	NIST
Thallium 207	²⁰⁷Tl	1	1	Wikipedia	NIST
Thallium 208	²⁰⁸Tl	1	1	Wikipedia	NIST
Thallium 209	²⁰⁹Tl	1	1	Wikipedia	NIST
Thallium 210	²¹⁰Tl	1	1	Wikipedia	NIST
Thallium(I) bromide	TlBr	1		Wikipedia	NIST
Thallium(I) chloride	TlCl	2		Wikipedia	NIST
Thallium(I) fluoride	TlF	1			NIST
Thallium(I) iodide	TlI	1		Wikipedia	NIST
Thallium(I) ion	Tl⁺	1	5		NIST
Thallium(I) oxide	Tl₂O	1		Wikipedia	NIST
Thallium(I) sulfide	Tl₂S	1		Wikipedia	NIST
Thallium(I) triiodide	TlI₃	2			NIST
Thallium(III) bromide	TlBr₃	1			NIST
Thallium(III) chloride	TlCl₃	1			NIST
Thallium(III) fluoride	TlF₃	1			NIST
Thallium(III) ion	Tl³⁺	1	1		NIST
Thallium(III) oxide	Tl₂O₃	1		Wikipedia	NIST
ThBr4	ThBr₄				NIST
THC				Wikipedia	NIST
ThCl4	ThCl₄				NIST
Thebaine				Wikipedia	NIST
Thenardite	Na₂SO₄			Wikipedia
THF		5	5	Wikipedia	NIST
ThF4	ThF₄				NIST
ThI4	ThI₄				NIST
7-Thiabicyclo[4.1.0]heptane		1			NIST
Thiazole				Wikipedia	NIST
Thiirane		1			NIST
Thiirane, S-alkyl (generic)			2
Thioacetal (generic)		1	1
Thioacetal carbanion (generic)			1	Wikipedia
Thioacetal, cyclic (generic)		1	1	Wikipedia
Thioacid (generic)		1
Thioanion (generic)	[R–S]^–		7
Thiocarbenium ion (generic)		1
Thiocation (generic)	[R–S]⁺		2
Thiocyanate (generic)	R–S–C≡N	2		Wikipedia
Thiocyanate ion	[SCN]^–		10	Wikipedia	NIST
Thiocyanate, methyl	N≡C–S–CH₃	1			NIST
Thiocyanic acid	N≡C–SH	1		Wikipedia	NIST
Thiodiphenylamine				Wikipedia	NIST
2-Thioethanol		1			NIST
Thioether (generic)	R₂S	2	5
3-Thioether propanoate (generic)		1
Thioether, adamantyl phenyl		1			NIST
Thioether, beta-chloro (generic)	R–S–CH₂CH₂Cl	1
Thioether, beta-hydroxy (generic)		1
Thioether, methyl (generic)	R–S–CH₃	3	1
Thioether, neopentyl phenyl		1			NIST
Thiofuran		1		Wikipedia	NIST
Thioglycol		1			NIST
Thioketal, cyclic (generic)		1	1	Wikipedia
Thioketone (generic)			1	Wikipedia
Thioketone, protonated (generic)		1
Thiol (generic)	R–SH	2	2
Thiol, methyl	CH₃–SH	1	1		NIST
Thionyl bromide	SOBr₂	1	1	Wikipedia	NIST
Thionyl chloride	SOCl₂	9	10	Wikipedia	NIST
Thionyl fluoride	SOF₂	1	1	Wikipedia	NIST
Thiopental, sodium				Wikipedia	NIST
Thiophen		1		Wikipedia	NIST
Thiophene		1		Wikipedia	NIST
Thiophenol		1		Wikipedia	NIST
Thiophenoxide ion			5		NIST
(2-Thiophenoxy thioethoxy) benzene	PhS(CH₂)₂SPh	1			NIST
Thiophosphoryl chloride	PSCl₃	1			NIST
Thiopyrylium ion					NIST
Thiosulfate ion		2	6	Wikipedia	NIST
Thiosulfinic O-acid (generic)
Thiosulfinic S-acid (generic)
Thiosulfonic O-acid (generic)
Thiosulfonic S-acid (generic)
Thiosulfonimidic O-acid (generic)
Thiosulfonimidic S-acid (generic)
Thiosulfuric acid		1	1	Wikipedia	NIST
Thiosulphate ion		2	6	Wikipedia	NIST
Thiourea		1		Wikipedia	NIST
ThO2	ThO₂			Wikipedia	NIST
Thomsonite	NaCa₂Al₅ Si₅O₂₀ .6H₂O			Wikipedia
Thorium	Th			Wikipedia	NIST
Thorium 227	²²⁷Th	1	1	Wikipedia	NIST
Thorium 228	²²⁸Th	1	1	Wikipedia	NIST
Thorium 229	²²⁹Th	1	1	Wikipedia	NIST
Thorium 230	²³⁰Th	1	1	Wikipedia	NIST
Thorium 231	²³¹Th	1	1	Wikipedia	NIST
Thorium 232	²³²Th		1	Wikipedia	NIST
Thorium 234	²³⁴Th	1	1	Wikipedia	NIST
Thorium bromide	ThBr₄				NIST
Thorium chloride	ThCl₄				NIST
Thorium dioxide	ThO₂			Wikipedia	NIST
Thorium fluoride	ThF₄				NIST
Thorium iodide	ThI₄				NIST
Thr		1	1	Wikipedia	NIST
Three-center two-electron bond				Wikipedia
Threonine		1	1	Wikipedia	NIST
Threonine, deprotonated			1	Wikipedia	NIST
Threonine, protonated		1		Wikipedia	NIST
D-Threose		1	1	Wikipedia	NIST
Thulia	Tm₂O₃			Wikipedia	NIST
Thulium	Tm			Wikipedia	NIST
Thulium bromide	TmBr₃				NIST
Thulium chloride heptahydrate	TmCl₃.7H₂O				NIST
Thulium fluoride	TmF₃				NIST
Thulium iodide	TmI₃				NIST
Thulium(III) oxide	Tm₂O₃			Wikipedia	NIST
Thymine	Thymine T		1	Wikipedia	NIST
Thymine/Adenine dimer	T=A	1			NIST
Thymol				Wikipedia	NIST
Thymol blue, sodium salt	Thymol Blue			Wikipedia	NIST
Ti	Ti	3	3	Wikipedia	NIST
Ti2+	Ti²⁺	1	1		NIST
Ti2O3	Ti₂O₃			Wikipedia	NIST
Ti3+	Ti³⁺		1		NIST
Ti4+	Ti⁴⁺		2		NIST
TiBr2	TiBr₂				NIST
TiBr3	TiBr₃				NIST
TiBr4	TiBr₄			Wikipedia	NIST
TiC	TiC	2		Wikipedia	NIST
TiCl2	TiCl₂			Wikipedia	NIST
TiCl3	TiCl₃			Wikipedia	NIST
TiCl4	TiCl₄	3	4	Wikipedia	NIST
TiF3	TiF₃			Wikipedia	NIST
TiF4	TiF₄			Wikipedia	NIST
TiI2	TiI₂				NIST
TiI3	TiI₃				NIST
TiI4	TiI₄			Wikipedia	NIST
Tin	Sn	1	3	Wikipedia	NIST
TiN	TiN	1		Wikipedia	NIST
Tin dibromide	SnBr₂			Wikipedia	NIST
Tin difluoride	SnF₂			Wikipedia	NIST
Tin diiodide	SnI₂			Wikipedia	NIST
Tin dioxide	Sn₂O	2		Wikipedia	NIST
Tin hexachloride dianion	[SnCl₆]^2–	1			NIST
Tin hexafluoride dianion	[SnF₆]^2–	1			NIST
Tin hydride, tributyl			3	Wikipedia	NIST
Tin pentachloride ion	[SnCl₅]^–				NIST
Tin tetrabromide	SnBr₄				NIST
Tin tetrachloride	SnCl₄		3	Wikipedia	NIST
Tin tetrafluoride	SnF₄		1		NIST
Tin tetraiodide	SnI₄			Wikipedia	NIST
Tin(II) bromide	SnBr₂			Wikipedia	NIST
Tin(II) chloride	SnCl₂	1		Wikipedia	NIST
Tin(II) fluoride	SnF₂			Wikipedia	NIST
Tin(II) iodide	SnI₂			Wikipedia	NIST
Tin(II) ion	Sn²⁺	3	3		NIST
Tin(II) oxide	SnO	1		Wikipedia	NIST
Tin(IV) bromide	SnBr₄				NIST
Tin(IV) chloride	SnCl₄		3	Wikipedia	NIST
Tin(IV) fluoride	SnF₄		1		NIST
Tin(IV) hydride	SnH₄	1		Wikipedia	NIST
Tin(IV) iodide	SnI₄			Wikipedia	NIST
Tin(IV) ion	Sn⁴⁺		2		NIST
Tin(IV) oxide	Sn₂O	2		Wikipedia	NIST
Tinstone	SnO₂			Wikipedia
TiO	TiO			Wikipedia	NIST
TiO2	TiO₂	3	2	Wikipedia	NIST
Titanite	CaTiSiO₅			Wikipedia
Titanium	Ti	3	3	Wikipedia	NIST
Titanium alloy	TAlO				NIST
Titanium dioxide	TiO₂	3	2	Wikipedia	NIST
Titanium family (generic)	Group IVb/4 Titanium Family			Wikipedia
Titanium group metal (generic)	Group IVb/4 Titanium Family			Wikipedia
Titanium tetrabromide	TiBr₄			Wikipedia	NIST
Titanium tetrachloride	TiCl₄	3	4	Wikipedia	NIST
Titanium tetraiodide	TiI₄			Wikipedia	NIST
Titanium(II) bromide	TiBr₂				NIST
Titanium(II) chloride	TiCl₂			Wikipedia	NIST
Titanium(II) iodide	TiI₂				NIST
Titanium(II) ion	Ti²⁺	1	1		NIST
Titanium(II) oxide	TiO			Wikipedia	NIST
Titanium(III) bromide	TiBr₃				NIST
Titanium(III) chloride	TiCl₃			Wikipedia	NIST
Titanium(III) fluoride	TiF₃			Wikipedia	NIST
Titanium(III) iodide	TiI₃				NIST
Titanium(III) ion	Ti³⁺		1		NIST
Titanium(III) nitride	TiN	1		Wikipedia	NIST
Titanium(III) oxide	Ti₂O₃			Wikipedia	NIST
Titanium(IV) bromide	TiBr₄			Wikipedia	NIST
Titanium(IV) carbide	TiC	2		Wikipedia	NIST
Titanium(IV) chloride	TiCl₄	3	4	Wikipedia	NIST
Titanium(IV) fluoride	TiF₄			Wikipedia	NIST
Titanium(IV) iodide	TiI₄			Wikipedia	NIST
Titanium(IV) ion	Ti⁴⁺		2		NIST
Titanium(IV) oxide	TiO₂	3	2	Wikipedia	NIST
Titanocene dichloride		1		Wikipedia	NIST
Tl	Tl	1	6	Wikipedia	NIST
Tl+	Tl⁺	1	5		NIST
Tl2O	Tl₂O	1		Wikipedia	NIST
Tl2O3	Tl₂O₃	1		Wikipedia	NIST
Tl2S	Tl₂S	1		Wikipedia	NIST
Tl3+	Tl³⁺	1	1		NIST
TlBr	TlBr	1		Wikipedia	NIST
TlBr3	TlBr₃	1			NIST
TlCl	TlCl	2		Wikipedia	NIST
TlCl3	TlCl₃	1			NIST
TlF	TlF	1			NIST
TlF3	TlF₃	1			NIST
TlI	TlI	1		Wikipedia	NIST
TlI3	TlI₃	2			NIST
Tm	Tm			Wikipedia	NIST
Tm2O3	Tm₂O₃			Wikipedia	NIST
TmBr3	TmBr₃				NIST
TmCl3	TmCl₃.7H₂O				NIST
TMEDA/LiMe complex					NIST
TmF3	TmF₃				NIST
TmI3	TmI₃				NIST
TMS	Si(CH₃)₄	1		Wikipedia	NIST
TNT		1	3	Wikipedia	NIST
Tollens' reagent	Tollens' Reagent	1	4	Wikipedia	NIST
Toluene		6	16	Wikipedia	NIST
Toluene alpha-carbanion			2	Wikipedia	NIST
Toluene diisocyanate		1	1	Wikipedia	NIST
p-Toluenesulfonate ion			1		NIST
p-Toluenesulfonic acid monohydrate		2		Wikipedia	NIST
p-Toluenesulfonylchloride		1		Wikipedia	NIST
α-tolunitrile				Wikipedia	NIST
Top quark	t			Wikipedia
Topaz	Al₂SiO₄(OH,F)			Wikipedia
Torbernite	Cu(UO₂)₂(PO₄)₂ .8-12H₂O			Wikipedia
Torpex	42% RDX 40% TNT 18% Al	1		Wikipedia
TOSMIC				Wikipedia	NIST
Tosyl chloride		1		Wikipedia	NIST
Tosylate ion			1		NIST
Tosylmethyl isocyanide				Wikipedia	NIST
Tourmaline	(Ca,K,Na,□) (Al,Fe,Li,Mg,Mn)₃ (Al,Cr, Fe,V)₆(BO₃)₃ (Si,Al,B)₆O₁₈(OH,F)₄			Wikipedia
Town gas	CO + H₂	1		Wikipedia	NIST
TPA		2	2	Wikipedia	NIST
Transition metal (generic)	d-Block Element			Wikipedia
Transition metal, first row (AS/A2 generic)				Wikipedia
Tremolite asbestos	Ca₂(Mg,Fe)₅ Si₈O₂₂			Wikipedia
Tri-manganese	Re			Wikipedia	NIST
Tri-tert-butyl phosphine		1			NIST
Trialkoxyaluminium hydride ion (generic)	[(RO)₃AlH]^–
Trialkoxyborohydride ion (generic)	[(RO)₃BH]^–
Trialkylaluminium hydride ion (generic)	[R₃AlH]^–
Trialkylborane (RCH2CH2)3B (generic)		3		Wikipedia
Trialkylborohydride ion (generic)	[R₃BH]^–
Trialkylcarbenium ion (generic)	[R₃C]⁺		3
Trialkyloxonium ion (generic)	[R₃O]⁺		1
Trialkylsulfonium ion (generic)	[R₃S]⁺	1
2,4,6-Triamino-s-trazine		2	1	Wikipedia	NIST
Triaquatrihydroxyaluminium	Al(H₂O)₃(OH)₃ Al(OH)₃	4	3		NIST
Triaquatrihydroxychromium(III)	Cr(H₂O)₃(OH)₃ Cr(OH)₃	3	3		NIST
Triaquatrihydroxyiron(III)	Fe(H₂O)₃(OH)₃ Fe(OH)₃	5	1		NIST
1,3,5-Triazine				Wikipedia	NIST
Tribromine cation	[Br₃]⁺	1			NIST
Tribromo boron	BBr₃	2	2	Wikipedia	NIST
Tributylphosphine		1		Wikipedia	NIST
Tributyltin hydride			3	Wikipedia	NIST
Tricalcium phosphate	Ca₃(PO₄)₂	2	3	Wikipedia	NIST
Tricarbon dioxide	O=C=C=C=O	1	2	Wikipedia	NIST
Tricarbonylhydrocobalt(I)	HCo(CO)₃	2	1		NIST
Tricarbonylpropanoylcobalt(I)		1	1		NIST
Trichlorine cation	[Cl₃]⁺	1			NIST
Trichlorine nitride	NCl₃	1	1	Wikipedia	NIST
2,2,2-Trichloro-1,1-ethanediol		1		Wikipedia	NIST
2,4,6-Trichloro-1,3,5-triazine		1		Wikipedia	NIST
1,1,1-Trichloro-2,2-bis(p-chlorophenyl)ethane	DDT	1		Wikipedia	NIST
Trichloroacetate ion	[CCl₃COO]^–		1		NIST
Trichloroacetic acid	CCl₃COOH	2		Wikipedia	NIST
Trichloroethanal	CCl₃CHO		2	Wikipedia	NIST
1,1,1-Trichloroethane	CH₃CCl₃	1		Wikipedia	NIST
1,1,2-Trichloroethane	CHCl₂CH₂Cl	2	1	Wikipedia	NIST
2,2,2-Trichloroethanol	CCl₃CH₂OH	1		Wikipedia	NIST
2,2,2-Trichloro ethoxide ion			1		NIST
Trichlorofluoromethane	CCl₃F	3	1	Wikipedia	NIST
Trichloromethane	CHCl₃	6	7	Wikipedia	NIST
Trichloromethyl radical	Cl₃C•	1	2		NIST
Trichloromethylsilane	CH₃SiCl₃		1	Wikipedia	NIST
Trichloronitromethane	CCl₃NO₂				NIST
Trichlorosilane	SiHCl₃	1	1	Wikipedia	NIST
Tricloroacetaldehyde	CCl₃CHO		2	Wikipedia	NIST
Tricyanomethane	(CN)₃CH	1			NIST
Tricyanomethane anion	[(CN)₃C]^–		1	Wikipedia	NIST
Tricycloacetone peroxide		1	1	Wikipedia	NIST
Tricyclohexyl phosphine				Wikipedia	NIST
Triene (generic)			1
Triethylaluminium	Al(CH₂CH₃)₃	2	3	Wikipedia	NIST
Triethylamine	(CH₃CH₂)₃N		1	Wikipedia	NIST
Triethylammonium ion	[(CH₃CH₂)₃NH]⁺	1			NIST
Triethylarsine	(CH₃H₂)₃As		1		NIST
Triethylarsonium ion	[(CH₃CH₂)₃AsH]⁺	1			NIST
Triethylborane	(CH₃CH₂)₃B	1		Wikipedia	NIST
Triethyloxonium ion	[(CH₃CH₂)₃O]⁺				NIST
Triethyloxonium tetrafluoroborate	[Et₃O]⁺[BF₄]^–		1	Wikipedia	NIST
Triethylphosphate	(CH₃CH₂O)₃P=O	3	1		NIST
Triethylphosphine	(CH₃CH₂)₃P	1	2		NIST
Triethylphosphite	(CH₃CH₂O)₃P		4	Wikipedia	NIST
Triethylphosphonium ion	[(CH₃CH₂)₃PH]⁺	1			NIST
Triflate ion	[CF₃SO₃]^–		1	Wikipedia	NIST
Triflic acid	CF₃SO₃H	1		Wikipedia	NIST
Trifluoroacetate ion	[CF₃COO]^–		1		NIST
Trifluoroacetic acid	CF₃COOH	1		Wikipedia	NIST
2,2,2-Trifluoroethanol	CF₃CH₂OH	1		Wikipedia	NIST
2,2,2-Trifluoroethoxide ion			1		NIST
Trifluoromethane sulfonate ion	[CF₃SO₃]^–		1	Wikipedia	NIST
Trifluoromethanesulfonic acid	CF₃SO₃H	1		Wikipedia	NIST
Trifluoromethyl function (generic)	R–CF₃	1		Wikipedia
Trigonal bipyramidal molecular shape (generic)				Wikipedia
Trigonal planar molecular shape (generic)				Wikipedia
Trigonal pyramidal molecular shape (generic)				Wikipedia
Trihydrated oxonium ion		1		Wikipedia	NIST
Trihydrogen cation	[H₃]⁺	2	3	Wikipedia	NIST
Trihydrogen germanate ion	[H₃GeO₄]^–	1	1		NIST
Trihydrogen ortho periodate ion	[H₃IO₆]^2–		1		NIST
1,2,3-Trihydroxypropane		10	2	Wikipedia	NIST
2,4,5-Trihydroxypyrimidine		1		Wikipedia	NIST
Triiodide ion	[I₃]^–	2	1	Wikipedia	NIST
Triiodine cation	[I₃]⁺	1			NIST
Trimethoxy boron	B(OCH₃)₃	2	1	Wikipedia	NIST
3,4,5-Trimethoxyphenethylamine				Wikipedia	NIST
Trimethoxyvinylsilane			1		NIST
Trimethyl borate	B(OCH₃)₃	2	1	Wikipedia	NIST
Trimethylacetic acid	(CH₃)₃C–COOH	1			NIST
Trimethylacetic acid		1			NIST
Trimethylaluminium	Al(CH₃)₃			Wikipedia	NIST
Trimethylamine	(CH₃)₃N	7	3	Wikipedia	NIST
Trimethylammonium ion	[(CH₃)₃NH]⁺	2			NIST
4-(Trimethylammonium) phenol		1			NIST
4-(Trimethylammonium) phenoxide ion			1		NIST
1,3,5-Trimethylbenzene		1		Wikipedia	NIST
Trimethylborane	(CH₃)₃B	1			NIST
Trimethylcarbenium ion		2	10		NIST
Trimethylene		2		Wikipedia	NIST
Trimethyloxonium ion	[(CH₃)₃O]⁺				NIST
2,2,4-Trimethylpentane		2	3	Wikipedia	NIST
Trimethylphosphine	(CH₃)₃P	1	1	Wikipedia	NIST
Trimethylphosphite	(CH₃O)₃P			Wikipedia	NIST
Trimethylphosphonium ion	[(CH₃)₃PH]⁺	1			NIST
2,4,6-Trimethylpyridine			1		NIST
2,4,6-Trimethylpyridinium ion		1			NIST
alpha, omega-bis(trimethylsiloxy)poly(dimethylsiloxane)	[(CH₃)₂SiO]_n	1			NIST
Trimethylsilyl cation	[(CH₃)₃Si]⁺				NIST
bis(Trimethylsilyl)amide anion			1		NIST
bis(Trimethylsilyl) amine		1			NIST
Trimethylsulfonium ion	[(CH₃)₃S]⁺				NIST
Trimethylsulfoxonium iodide		2			NIST
Trimethylsulfoxonium ion		1	2		NIST
Trimethylsulfoxonium ylid		2	3		NIST
1,3,5-Trinitrobenzene			1		NIST
2,4,6-Trinitrophenol		2	1	Wikipedia	NIST
2,4,6-Trinitrophenoxide ion			1	Wikipedia	NIST
2,4,6-Trinitrotoluene		1	3	Wikipedia	NIST
Trioxan		1			NIST
1,3,5-Trioxane		1			NIST
2,4,6-Trioxohexahydropyrimidine			1	Wikipedia	NIST
Trioxymethylene		1			NIST
Triphenylmethane		1		Wikipedia	NIST
Triphenylmethanol		1		Wikipedia	NIST
Triphenylmethyl anion			2	Wikipedia	NIST
Triphenylmethyl carbenium ion			2		NIST
Triphenylmethyl chloride	(C₆H₅)₃CCl	2	1		NIST
Triphenylmethyl radical	(C₆H₅)₃C•	1	1	Wikipedia	NIST
Triphenyloxonium ion					NIST
Triphenylphosphine		1	4	Wikipedia	NIST
Triphenylphosphine oxide	(C₆H₅)₃P=O	1		Wikipedia	NIST
Triplet oxygen	O₂	60	163	Wikipedia	NIST
Triplumbic tetroxide	Pb₃O₄			Wikipedia	NIST
Tris(ethanedioate)cobalt(II) ion	[Co(C₂O₄)₃]^4–	1			NIST
Tris(ethanedioate)iron(II) ion	[Fe(C₂O₄)₃]^3–	2			NIST
Tris(ethylenediamine)cobalt(II) ion	[Co(en)₃]²⁺	2			NIST
Tris(ethylenediamine)nickel(II) ion	[Ni(en)₃]²⁺	1			NIST
Trisodium hydrogendicarbonate	Na₂CO₃.NaHCO₃ .2H₂O			Wikipedia	NIST
Trisulfide dianion	[S–S–S]^2–	5			NIST
Tritan		1		Wikipedia	NIST
Triteride ion	T^–			Wikipedia	NIST
Trithiosulfonic acid (generic)
Tritium	T₂			Wikipedia	NIST
Tritium anion	T^–			Wikipedia	NIST
Tritium cation	T⁺			Wikipedia	NIST
Trityl anion			2	Wikipedia	NIST
Trityl cation			2		NIST
Trityl chloride	(C₆H₅)₃CCl	2	1		NIST
Trityl radical	(C₆H₅)₃C•	1	1	Wikipedia	NIST
Triuranium octaoxide	U₃O₈				NIST
Trona	Na₂CO₃.NaHCO₃ .2H₂O			Wikipedia	NIST
Tropilidene		1	1	Wikipedia	NIST
Tropylium chromium tricarbonyl cation		1			NIST
Tropylium ion			1	Wikipedia	NIST
Trp		1	1	Wikipedia	NIST
Truth serum or Truth drug				Wikipedia	NIST
Tryptophan		1	1	Wikipedia	NIST
Tryptophan, deprotonated			1	Wikipedia	NIST
Tryptophan, protonated		1		Wikipedia	NIST
Ts	Ts			Wikipedia	NIST
TTF-TCNQ organometal complex	TCNQ–TTF ^organometal	1		Wikipedia	NIST
Tungstate ion	[WO₄]^2–		3	Wikipedia	NIST
Tungsten	W		1	Wikipedia	NIST
Tungsten carbide	WC	1		Wikipedia	NIST
Tungsten filament alloy	Tungsten Filament Alloy				NIST
Tungsten hexachloride	WCl₆			Wikipedia	NIST
Tungsten steel	Tungsten Steel				NIST
Tungsten(II) bromide	WBr₂ W₆Br₁₂				NIST
Tungsten(II) chloride	WCl₂ W₆Cl₁₂				NIST
Tungsten(II) iodide	WI₂ W₆I₁₂				NIST
Tungsten(III) bromide	WBr₃ W₆Br₁₈				NIST
Tungsten(III) chloride	WCl₃ W₆Cl₁₈				NIST
Tungsten(III) iodide	WI₃ W₆I₁₈				NIST
Tungsten(IV) bromide	WBr₄				NIST
Tungsten(IV) chloride	WCl₄				NIST
Tungsten(IV) fluoride	WF₄				NIST
Tungsten(IV) iodide	WI₄				NIST
Tungsten(IV) oxide	WO₂			Wikipedia	NIST
Tungsten(V) bromide	WBr₅			Wikipedia	NIST
Tungsten(V) chloride	WCl₅			Wikipedia	NIST
Tungsten(V) fluoride	WF₅				NIST
Tungsten(VI) bromide	WBr₆				NIST
Tungsten(VI) chloride	WCl₆			Wikipedia	NIST
Tungsten(VI) fluoride	WF₆			Wikipedia	NIST
Tungsten(VI) Ion	W⁶⁺		1		NIST
Tungsten(VI) oxide	WO₃			Wikipedia	NIST
Tungsten(VI) oxide mono hydrate	WO₃.H₂O	1		Wikipedia	NIST
Tungstic anhydride	WO₃			Wikipedia	NIST
Tungstite	WO₃.H₂O			Wikipedia
Turquoise	CuAl₆(PO₄)₄ (OH)₈.5H₂O			Wikipedia
Type 1 Lewis acid/base complex (generic)		1
Type 2 Lewis acid/base complex (generic)		1
Type 3 Lewis acid/base complex (generic)		1
Type 4 Lewis acid/base complex (generic)		1
Type 5 Lewis acid/base complex (generic)		1
Type 6 Lewis acid/base complex (generic)		1
Type 7 Lewis acid/base complex (generic)		1
Type 8 Lewis acid/base complex (generic)		1
Type 9 Lewis acid/base complex (generic)		1
Type 10 Lewis acid/base complex (generic)		1
Type 11 Lewis acid/base complex (generic)		1
Type 12 Lewis acid/base complex (generic)		1
Type 13 Lewis acid/base complex (generic)		1
Type 14 Lewis acid/base complex (generic)		1
Type 15 Lewis acid/base complex (generic)		1
Type 16 Lewis acid/base complex (generic)		1
Type 17 Lewis acid/base complex (generic)		1
Type 18 Lewis acid/base complex (generic)		1
Type 19 Lewis acid/base complex (generic)		1
Type 20 Lewis acid/base complex (generic)		1
Type 21 Lewis acid/base complex (generic)		1
Type 22 Lewis acid/base complex (generic)		1
Type 23 Lewis acid/base complex (generic)		1
Type 24 Lewis acid/base complex (generic)		1
Tyr		1	1	Wikipedia	NIST
Tyrosine		1	1	Wikipedia	NIST
Tyrosine, deprotonated		1	1	Wikipedia	NIST
Tyrosine, doubly-deprotonated			1	Wikipedia	NIST
Tyrosine, protonated		1			NIST
Tyuyamunite	Ca(UO₂)₂(VO₄)₂ .5-10H₂O			Wikipedia
U	U	1		Wikipedia	NIST
U3+	U³⁺	1	1		NIST
U3O8	U₃O₈				NIST
U4+	U⁴⁺		3		NIST
UBr3	UBr₃				NIST
UBr4	UBr₄				NIST
UCl3	UCl₃			Wikipedia	NIST
UCl4	UCl₄			Wikipedia	NIST
UCl5	UCl₅				NIST
UF3	UF₃				NIST
UF4	UF₄	2	2	Wikipedia	NIST
UF6	UF₆	2		Wikipedia	NIST
UI4	UI₄				NIST
Uracil	Uracil U			Wikipedia	NIST
Ulexite	NaCaB₅O₉ .8H₂O			Wikipedia
Umn	Ds			Wikipedia	NIST
Unidentate ligand (AS/A2 generic)		2	1	Wikipedia
Unknown compound (generic)	Unknown Compound
alpha, beta-Unsaturated EWG function (generic)
Ununbium	Cn			Wikipedia	NIST
Ununnilium	Ds			Wikipedia	NIST
Ununquadium	Fl			Wikipedia	NIST
Ununtrium	Nh			Wikipedia
Unununium	Rg			Wikipedia	NIST
UO2	UO₂	1	2	Wikipedia	NIST
UO3	UO₃			Wikipedia	NIST
Up quark	u		5	Wikipedia
Uraninite	UO₂			Wikipedia
Uranium	U	1		Wikipedia	NIST
Uranium 233	²³³U	1	1	Wikipedia	NIST
Uranium 234	²³⁴U	2	1	Wikipedia	NIST
Uranium 235	²³⁵U	1	1	Wikipedia	NIST
Uranium 237	²³⁷U		1	Wikipedia	NIST
Uranium 238	²³⁸U		1		NIST
Uranium 239	²³⁹U		1	Wikipedia	NIST
Uranium dioxide	UO₂	1	2	Wikipedia	NIST
Uranium hexafluoride	UF₆	2		Wikipedia	NIST
Uranium tetrachloride	UCl₄			Wikipedia	NIST
Uranium tetrafluoride	UF₄	2	2	Wikipedia	NIST
Uranium trioxide	UO₃			Wikipedia	NIST
Uranium, depleted	dU			Wikipedia	NIST
Uranium(III) bromide	UBr₃				NIST
Uranium(III) chloride	UCl₃			Wikipedia	NIST
Uranium(III) fluoride	UF₃				NIST
Uranium(III) ion	U³⁺	1	1		NIST
Uranium(IV) bromide	UBr₄				NIST
Uranium(IV) chloride	UCl₄			Wikipedia	NIST
Uranium(IV) fluoride	UF₄	2	2	Wikipedia	NIST
Uranium(IV) iodide	UI₄				NIST
Uranium(IV) ion	U⁴⁺		3		NIST
Uranium(IV) oxide	UO₂	1	2	Wikipedia	NIST
Uranium(IV, VI) oxide	U₃O₈				NIST
Uranium(V) chloride	UCl₅				NIST
Uranium(VI) fluoride	UF₆	2		Wikipedia	NIST
Uranium(VI) oxide	UO₃			Wikipedia	NIST
Uranocene		1		Wikipedia	NIST
Urea		4	5	Wikipedia	NIST
Urea or carbonate (generic)
Urea, protonated		1			NIST
Uritone		1	2	Wikipedia	NIST
Urotropine		1	2	Wikipedia	NIST
Uub	Cn			Wikipedia	NIST
Uuq	Fl			Wikipedia	NIST
Uut	Nh			Wikipedia
Uuu	Rg			Wikipedia	NIST
V	V	2		Wikipedia	NIST
V (valine)		1	1	Wikipedia	NIST
V(CO)6	V(CO)₆			Wikipedia	NIST
[V(H2O)6]2+	[V(H₂O)₆]²⁺	4			NIST
[V(H2O)6]3+	[V(H₂O)₆]³⁺	2	1		NIST
V2+	V²⁺	1	3		NIST
V2O3	V₂O₃			Wikipedia	NIST
V2O5	V₂O₅	1	8	Wikipedia	NIST
V3+	V³⁺	3	2		NIST
V4+	V⁴⁺				NIST
V5+	V⁵⁺				NIST
Val		1	1	Wikipedia	NIST
Valeraldehyde		1	3	Wikipedia	NIST
Valeric acid		3		Wikipedia	NIST
Valine		1	1	Wikipedia	NIST
Valine, deprotonated			1	Wikipedia	NIST
Valine, protonated		1		Wikipedia	NIST
Valium					NIST
van der Waals attraction complex (generic)				Wikipedia
Vanadate(IV) ion	[VO]²⁺		2		NIST
Vanadinite	Pb₅(VO₄)₃Cl			Wikipedia
Vanadium	V	2		Wikipedia	NIST
Vanadium carbonyl	V(CO)₆			Wikipedia	NIST
Vanadium family (generic)	Group Vb/5 Vanadium Family			Wikipedia
Vanadium group metal (generic)	Group Vb/5 Vanadium Family			Wikipedia
Vanadium pentoxide	V₂O₅	1	8	Wikipedia	NIST
Vanadium(II) bromide	VBr₂				NIST
Vanadium(II) chloride	VCl₂			Wikipedia	NIST
Vanadium(II) fluoride	VF₂				NIST
Vanadium(II) hexaaquava ion	[V(H₂O)₆]²⁺	4			NIST
Vanadium(II) iodide	VI₂				NIST
Vanadium(II) ion	V²⁺	1	3		NIST
Vanadium(II) oxide	VO			Wikipedia	NIST
Vanadium(III) bromide	VBr₃			Wikipedia	NIST
Vanadium(III) chloride	VCl₃			Wikipedia	NIST
Vanadium(III) dichlorotetraaqua ion	[VCl₂(H₂O)₄]⁺	2	2		NIST
Vanadium(III) fluoride	VF₃			Wikipedia	NIST
Vanadium(III) hexaaquava ion	[V(H₂O)₆]³⁺	2	1		NIST
Vanadium(III) iodide	VI₃				NIST
Vanadium(III) ion	V³⁺	3	2		NIST
Vanadium(III) oxide	V₂O₃			Wikipedia	NIST
Vanadium(IV) bromide	VBr₄				NIST
Vanadium(IV) chloride	VCl₄			Wikipedia	NIST
Vanadium(IV) fluoride	VF₄			Wikipedia	NIST
Vanadium(IV) ion	V⁴⁺				NIST
Vanadium(IV) oxide	VO₂			Wikipedia	NIST
Vanadium(IV) oxide	VO₂	1	1	Wikipedia	NIST
Vanadium(IV) oxide sulfate	VOSO₄ [VO]²⁺ [SO₄]^2–				NIST
Vanadium(IV) pentaaquaoxo ion	[VO]²⁺ [VO(H₂O)₅]²⁺	3	3		NIST
Vanadium(V) dioxoaqua anion	[VO₂]⁺ [VO(H₂O)₅]³⁺	2	3		NIST
Vanadium(V) fluoride	VF₅				NIST
Vanadium(V) ion	V⁵⁺				NIST
Vanadium(V) oxide	V₂O₅	1	8	Wikipedia	NIST
Vanadium(V) trioxo ion	[VO₃]^–		2		NIST
Vanadyl sulfate	VOSO₄ [VO]²⁺ [SO₄]^2–				NIST
Vandate(V) ion	[VO₃]^–		2		NIST
Vanillin				Wikipedia	NIST
VBr2	VBr₂				NIST
VBr3	VBr₃			Wikipedia	NIST
VBr4	VBr₄				NIST
VCl2	VCl₂			Wikipedia	NIST
[VCl2(H2O)4]+	[VCl₂(H₂O)₄]⁺	2	2		NIST
VCl3	VCl₃			Wikipedia	NIST
VCl4	VCl₄			Wikipedia	NIST
VCM	H₂C=CHCl	3	4	Wikipedia	NIST
VDC	H₂C=CCl₂	1	1	Wikipedia	NIST
Vermiculite	(Mg,Fe²⁺,Fe³⁺)₃ [(Al,Si)₄O₁₀](OH)₂. 4H₂O			Wikipedia
Vesuvianite	Ca₁₀(Mg, Fe)₂Al₄ (SiO₄)₅(Si₂O₇)₂(OH,F)₄			Wikipedia
VF2	VF₂				NIST
VF3	VF₃			Wikipedia	NIST
VF4	VF₄			Wikipedia	NIST
VF5	VF₅				NIST
VI2	VI₂				NIST
VI3	VI₃				NIST
Viagra	Viagra			Wikipedia	NIST
Villiaumite	NaF	6	1	Wikipedia	NIST
Vinyl acetate		3	1	Wikipedia	NIST
Vinyl acetate polymer		1	1	Wikipedia	NIST
Vinyl acetylene		1	1		NIST
Vinyl alcohol polymer		1		Wikipedia	NIST
Vinyl anion			1	Wikipedia	NIST
Vinyl anion (generic)			3
Vinyl benzene		2	4	Wikipedia	NIST
Vinyl bromide		1		Wikipedia	NIST
Vinyl chloride (generic)		2	2
Vinyl chloride	H₂C=CHCl	3	4	Wikipedia	NIST
Vinyl ether (generic)		1	1	Wikipedia
Vinyl fluoride		2	1	Wikipedia	NIST
Vinylnaphthalene			1		NIST
Vitamin A	Retinol Vitamin A		1	Wikipedia	NIST
VO	VO			Wikipedia	NIST
[VO(H2O)5]2+	[VO]²⁺ [VO(H₂O)₅]²⁺	3	3		NIST
VO2	VO₂			Wikipedia	NIST
VO2	VO₂	1	1	Wikipedia	NIST
[VO2]+	[VO₂]⁺ [VO(H₂O)₅]³⁺	2	3		NIST
[VO3]-	[VO₃]^–		2		NIST
VOSO4	VOSO₄ [VO]²⁺ [SO₄]^2–				NIST
[VO]2+	[VO]²⁺		2		NIST
VSEPR geometry = AX2 (generic)				Wikipedia
VSEPR geometry = AX2E1 (generic)				Wikipedia
VSEPR geometry = AX2E2 (generic)				Wikipedia
VSEPR geometry = AX2E3 (generic)				Wikipedia
VSEPR geometry = AX2E4 (generic)				Wikipedia
VSEPR geometry = AX3 (generic)				Wikipedia
VSEPR geometry = AX3E1 (generic)				Wikipedia
VSEPR geometry = AX3E2 (generic)				Wikipedia
VSEPR geometry = AX3E3 (generic)				Wikipedia
VSEPR geometry = AX4 (generic)				Wikipedia
VSEPR geometry = AX4E1 (generic)				Wikipedia
VSEPR geometry = AX4E2 (generic)				Wikipedia
VSEPR geometry = AX5 (generic)				Wikipedia
VSEPR geometry = AX5E1 (generic)				Wikipedia
VSEPR geometry = AX6 (generic)				Wikipedia
VSEPR geometry = AX6E1 (generic)				Wikipedia
VSEPR geometry = AX7 (generic)				Wikipedia
W	W		1	Wikipedia	NIST
W (tryptophan)		1	1	Wikipedia	NIST
W6+	W⁶⁺		1		NIST
W6Br12	WBr₂ W₆Br₁₂				NIST
W6Br18	WBr₃ W₆Br₁₈				NIST
W6Cl12	WCl₂ W₆Cl₁₂				NIST
W6Cl18	WCl₃ W₆Cl₁₈				NIST
W6I12	WI₂ W₆I₁₂				NIST
W6I18	WI₃ W₆I₁₈				NIST
Wad	Mn_xO_y.(H₂O)_n _{mixture of hydrated oxides}			Wikipedia
Wash active alkylsulfonate detergent		2		Wikipedia	NIST
Washing soda	Na₂CO₃	11	17	Wikipedia	NIST
Water	H₂O	529	531	Wikipedia	NIST
Water gas	CO + H₂ ^{water gas}	1		Wikipedia	NIST
Water glass	Na₂SiO₃ ^solution	2		Wikipedia	NIST
Water hydrogen bonded dimer		1			NIST
Water of Kings	Aqua Regia	1	2	Wikipedia	NIST
Water(s) of crystallisation (generic)	.xH2O ^{Water(s) of crystallisation}			Wikipedia
Water, heavy	D₂		1	Wikipedia	NIST
Water, semi-heavy	DOH	1			NIST
Water, steam	H₂O(g)	3	1	Wikipedia	NIST
Wavellite	Al₃(PO₄)₂(OH)₃ .5H₂O			Wikipedia
Wax	Wax	1		Wikipedia	NIST
WBr2	WBr₂ W₆Br₁₂				NIST
WBr3	WBr₃ W₆Br₁₈				NIST
WBr4	WBr₄				NIST
WBr5	WBr₅			Wikipedia	NIST
WBr6	WBr₆				NIST
WC	WC	1		Wikipedia	NIST
WCl2	WCl₂ W₆Cl₁₂				NIST
WCl3	WCl₃ W₆Cl₁₈				NIST
WCl4	WCl₄				NIST
WCl5	WCl₅			Wikipedia	NIST
WCl6	WCl₆			Wikipedia	NIST
Weak acid (AS/A2 generic)				Wikipedia
Weak base (AS/A2 generic)				Wikipedia
Wertzite	ZnS		1	Wikipedia
WF4	WF₄				NIST
WF5	WF₅				NIST
WF6	WF₆			Wikipedia	NIST
Wheel-ore	PbCuSbS₃			Wikipedia
Wheland Intermediate (generic)
Wheland intermediate, nitration of benzene		2	1		NIST
White gold	White Gold			Wikipedia	NIST
White metal	White Metal			Wikipedia	NIST
White palladium gold	Palladium White Gold			Wikipedia	NIST
White phosphorus	P	3	20	Wikipedia	NIST
White platinum gold	White Platinum Gold				NIST
WI2	WI₂ W₆I₁₂				NIST
WI3	WI₃ W₆I₁₈				NIST
WI4	WI₄				NIST
Willemite	Zn₂SiO₄			Wikipedia
Witherite	BaCO₃			Wikipedia
Wittig reagent (generic)		2	2	Wikipedia
WO2	WO₂			Wikipedia	NIST
WO3	WO₃			Wikipedia	NIST
WO3.H2O	WO₃.H₂O	1		Wikipedia	NIST
[WO4]2-	[WO₄]^2–		3	Wikipedia	NIST
Wolfram	W		1	Wikipedia	NIST
Wolframite	(Fe,Mn)WO₄			Wikipedia
Wollastonite	CaSiO₃			Wikipedia
Wood alcohol	CH₃OH	19	31	Wikipedia	NIST
Wood's metal	Wood's Metal			Wikipedia	NIST
Wulfenite	PbMnO₄			Wikipedia
X- (generic)	X^– ^{Spectator Anion}		1
Xe	Xe	11	4	Wikipedia	NIST
XeF2	XeF₂	1	9	Wikipedia	NIST
XeF4	XeF₄	1	3	Wikipedia	NIST
XeF6	XeF₆	3	8	Wikipedia	NIST
[XeF7]-	[XeF₇]^–	2	2		NIST
[XeF8]2-	[XeF₈]^2–	2			NIST
[XeF]+	[XeF]⁺	4	1		NIST
[XeF][PtF6]	[XeF]⁺ [PtF₆]^–	2		Wikipedia	NIST
Xenate ion	[HXeO₄]^–	1	1		NIST
Xenon	Xe	11	4	Wikipedia	NIST
Xenon difluoride	XeF₂	1	9	Wikipedia	NIST
Xenon difluoride dioxide	XeO₂F₂	2		Wikipedia	NIST
Xenon fluoride cation	[XeF]⁺	4	1		NIST
Xenon fluoride hexafluoroplatinate(V)	[XeF]⁺ [PtF₆]^–	2		Wikipedia	NIST
Xenon heptafluoride ion	[XeF₇]^–	2	2		NIST
Xenon hexafluoride	XeF₆	3	8	Wikipedia	NIST
Xenon hexafluoroplatinate	[XeF]⁺ [PtF₆]^–	2		Wikipedia	NIST
Xenon octafluoride ion	[XeF₈]^2–	2			NIST
Xenon tetrafluoride	XeF₄	1	3	Wikipedia	NIST
Xenon tetrafluoride oxide	XeOF₄	3	1	Wikipedia	NIST
Xenon tetroxide	XeO₄			Wikipedia	NIST
Xenon trioxide	XeO₃	2	4	Wikipedia	NIST
Xenon, protonated	[XeH]⁺				NIST
Xenotime	YPO₄			Wikipedia
XeO2F2	XeO₂F₂	2		Wikipedia	NIST
XeO3	XeO₃	2	4	Wikipedia	NIST
XeO4	XeO₄			Wikipedia	NIST
[XeO6]4-	[XeO₆]^4–	1		Wikipedia	NIST
XeOF4	XeOF₄	3	1	Wikipedia	NIST
1,2-Xylene		2	1	Wikipedia	NIST
meta-Xylene			1	Wikipedia	NIST
ortho-Xylene		2	1	Wikipedia	NIST
para-Xylene		2	1	Wikipedia	NIST
D-Xylose		1	1	Wikipedia	NIST
D-Xylulose				Wikipedia	NIST
Y	Y			Wikipedia	NIST
Y (tyrosine)		1	1	Wikipedia	NIST
Y2O3	Y₂O₃				NIST
Y3+	Y³⁺		1		NIST
Yb	Yb			Wikipedia	NIST
YbBr2	YbBr₂				NIST
YbBr3	YbBr₃			Wikipedia	NIST
YbCl2	YbCl₂			Wikipedia	NIST
YbCl3	YbCl₃			Wikipedia	NIST
YbF3	YbF₃			Wikipedia	NIST
YbI2	YbI₂				NIST
YbI3	YbI₃				NIST
YBr3	YBr₃			Wikipedia	NIST
YCl3	YCl₃			Wikipedia	NIST
Yeast	Yeast		2	Wikipedia	NIST
Yellow arsenic	As₄	1		Wikipedia	NIST
YF3	YF₃				NIST
YI3	YI₃				NIST
Ylid (generic)	⁺X–Y^–			Wikipedia
Yperite	S(CH₂CH₂Cl)₂	1		Wikipedia	NIST
YPO4	YPO₄	1			NIST
Ytterbia	Yb₂O₃			Wikipedia	NIST
Ytterbium	Yb			Wikipedia	NIST
Ytterbium sesquioxide	Yb₂O₃			Wikipedia	NIST
Ytterbium(II) bromide	YbBr₂				NIST
Ytterbium(II) chloride	YbCl₂			Wikipedia	NIST
Ytterbium(II) fluoride	YbF₂				NIST
Ytterbium(II) iodide	YbI₂				NIST
Ytterbium(III) bromide	YbBr₃			Wikipedia	NIST
Ytterbium(III) chloride	YbCl₃			Wikipedia	NIST
Ytterbium(III) fluoride	YbF₃			Wikipedia	NIST
Ytterbium(III) iodide	YbI₃				NIST
Ytterbium(III) oxide	Yb₂O₃			Wikipedia	NIST
Yttria	Y₂O₃				NIST
Yttrium	Y			Wikipedia	NIST
Yttrium bromide	YBr₃			Wikipedia	NIST
Yttrium chloride	YCl₃			Wikipedia	NIST
Yttrium fluoride	YF₃				NIST
Yttrium iodide	YI₃				NIST
Yttrium phosphate	YPO₄	1			NIST
Yttrium(III) oxide	Y₂O₃				NIST
Yttrium(III) ion	Y³⁺		1		NIST
Zeise's salt		1		Wikipedia	NIST
Zeolite			9	Wikipedia	NIST
Ziegler-Natta catalyst	Ziegler-Natta catalyst	1	5	Wikipedia	NIST
Zinc	Zn	5	26	Wikipedia	NIST
Zinc blende	ZnS		1	Wikipedia
Zinc bromide	ZnBr₂	1		Wikipedia	NIST
Zinc carbonate	ZnCO₃	1		Wikipedia	NIST
Zinc chloride	ZnCl₂	3	1	Wikipedia	NIST
Zinc dithionite	ZnS₂O₃	2	1	Wikipedia	NIST
Zinc family (generic)	Group IIb/12 Zinc Family			Wikipedia
Zinc finger protein (generic)	Zinc finger protein		1	Wikipedia
Zinc finger protein/DNA Complex (generic)	Zinc finger DNA complex	1		Wikipedia
Zinc fluoride	ZnF₂			Wikipedia	NIST
Zinc group metal (generic)	Group IIb/12 Zinc Family			Wikipedia
Zinc hydroxide	Zn(OH)₂	2		Wikipedia	NIST
Zinc iodide	ZnI₂			Wikipedia	NIST
Zinc ion	Zn²⁺	20	10		NIST
Zinc mercury amalgam	Zn(Hg)		2	Wikipedia	NIST
Zinc nitrate	Zn(NO₃)₂	2		Wikipedia	NIST
Zinc oxide	ZnO	2	4	Wikipedia	NIST
Zinc silicate	Zn₂SiO₄	1		Wikipedia	NIST
Zinc sulfide	ZnS	2		Wikipedia	NIST
Zinc(II) tetrahydro ion	[ZnH₄]^2–	1	1		NIST
Zinc-Copper Alloy	Zn(Cu)		2		NIST
Zincite	ZnO			Wikipedia
Zintl ion					NIST
Zircon	ZrSiO₄			Wikipedia
Zirconia	ZrO₂			Wikipedia	NIST
Zirconium	Zr			Wikipedia	NIST
Zirconium carbide	ZrC		1	Wikipedia	NIST
Zirconium dioxide	ZrO₂			Wikipedia	NIST
Zirconium ion	Zr⁴⁺		3		NIST
Zirconium platinum alloy	ZrPt₃	1			NIST
Zirconium silicate	ZrSiO₄	1		Wikipedia	NIST
Zirconium(II) bromide	ZrBr₂				NIST
Zirconium(II) chloride	ZrCl₂				NIST
Zirconium(III) bromide	ZrBr₃				NIST
Zirconium(III) chloride	ZrCl₃				NIST
Zirconium(III) iodide	ZrI₃				NIST
Zirconium(IV) bromide	ZrBr₄			Wikipedia	NIST
Zirconium(IV) chloride	ZrCl₄	1		Wikipedia	NIST
Zirconium(IV) fluoride	ZrF₄			Wikipedia	NIST
Zirconium(IV) iodide	ZrI₄			Wikipedia	NIST
Zirconium(IV) oxide	ZrO₂			Wikipedia	NIST
Zirconocene chloride hydride		1			NIST
Zn	Zn	5	26	Wikipedia	NIST
Zn(Cu)	Zn(Cu)		2		NIST
Zn(Hg)	Zn(Hg)		2	Wikipedia	NIST
Zn(NO3)2	Zn(NO₃)₂	2		Wikipedia	NIST
Zn(OH)2	Zn(OH)₂	2		Wikipedia	NIST
Zn2+	Zn²⁺	20	10		NIST
Zn2SiO4	Zn₂SiO₄	1		Wikipedia	NIST
ZnBr2	ZnBr₂	1		Wikipedia	NIST
ZnCl2	ZnCl₂	3	1	Wikipedia	NIST
ZnCO3	ZnCO₃	1		Wikipedia	NIST
ZnF2	ZnF₂			Wikipedia	NIST
[ZnH4]2-	[ZnH₄]^2–	1	1		NIST
ZnI2	ZnI₂			Wikipedia	NIST
ZnO	ZnO	2	4	Wikipedia	NIST
ZnS	ZnS	2		Wikipedia	NIST
ZnS2O4	ZnS₂O₃	2	1	Wikipedia	NIST
Zoisite	Ca₂Al₃Si₃ O₁₂(OH)			Wikipedia
Zr	Zr			Wikipedia	NIST
Zr4+	Zr⁴⁺		3		NIST
ZrBr2	ZrBr₂				NIST
ZrBr3	ZrBr₃				NIST
ZrBr4	ZrBr₄			Wikipedia	NIST
ZrC	ZrC		1	Wikipedia	NIST
ZrCl2	ZrCl₂				NIST
ZrCl3	ZrCl₃				NIST
ZrCr4	ZrCl₄	1		Wikipedia	NIST
ZrF4	ZrF₄			Wikipedia	NIST
ZrI3	ZrI₃				NIST
ZrI4	ZrI₄			Wikipedia	NIST
ZrO2	ZrO₂			Wikipedia	NIST
ZrPt3	ZrPt₃	1			NIST
ZrSiO4	ZrSiO₄	1		Wikipedia	NIST
Zundel cation		1		Wikipedia	NIST
Zwitter ion (AS/A2 generic)		1		Wikipedia
Zwitterion, glycine				Wikipedia	NIST

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