In chemistry, a<unk>  is a hydrophobic alkyl functional<unk>  derived from methane CH4). It has the formula -CH3 and is very often abbreviated as -Me in the structure of a molecule. This hydrocarbon unit can be found in many organic compounds. It is customarily written as H3C when on the left of a bond; for example, ethane is represented as H3C-CH3.<unk> s can be incorporated in organic compounds by an SN2 reaction on iodomethane, or by the reaction of<unk>  lithium or MeMgCl with a carbon atom that is substituted with a leaving<unk> .
Methyl group
Glycosidic bond
Disulfide bond
Peptide sequence
Cyclohexane conformation
Carbon-carbon bond
Isomer
Isotopomers