Azomethylene CH2N2 Diazomethane 4 Reactions utilise: Diazomethane 1 Reaction forms: Diazomethane C 1 H 2 N 2      Real, long lived, electronically neutral reagent chemical. Gram formula weight (molecular mass) = 42.039 Melting point = -145 °C Boiling point = 0 °C about Purity = 99 % Solubility in organics = soluble Toxic, flammable, explosive, carcinogenic yellow gas. Useful methylating agent but potentially very nasty stuff. Diazomethane is usually prepared as required from a precursor material such as Diazald¨ (N-methyl -N-nitroso -p-toluene sulfonamide) which is commercially available. Wikipedia Page: Diazomethane is defined with respect to the entities below: The entities below are defined with respect to: Diazomethane Alkyl, -CH2- (generic) Cumulene (generic) Lobe-LUMO Lewis acid (generic) Molecular material (generic) Nucleophilic attack susceptible species (generic) Type 15 Lewis acid/base complex (generic) chemical compound molecule metal molecular science reaction mechanism ionic material acid base geometry reactivity synthesis science knowledge chemistry Lewis