Carbanion, methyl [CH3]- Methyl anion 12 Reactions utilise: Methyl anion C 1 H 3   charge = -1   Real ion. Gram formula weight (molecular mass) = 15.034 Methyl anion is defined with respect to the entities below: The entities below are defined with respect to: Methyl anion Alkyl, -CH3 (generic) Carbanion (generic) Lobe-HOMO Lewis base (generic) Nonmetal anion (AS/A2 generic) Nucleophile (AS/A2 generic) Real complex ion (generic) SP3, SP2 and SP FMO (generic) Strong base (AS/A2 generic) chemical compound molecule metal molecular science reaction mechanism ionic material acid base geometry reactivity synthesis science knowledge chemistry Lewis