A univalent hydrocarbon radical, CH3-, not existing alone but regarded as an essential residue of methane, and appearing as a component part of many derivatives; as, methyl alcohol, methyl ether, methyl amine, etc.

The univalent hydrocarbon radical CH3 present in many compounds.

(-CH3) A group -CH3, derived from methane. For example, CH3Cl is "methyl chloride" (systematic name: chloromethane); CH3OH is "methyl alcohol" (systematic name: methanol).

Tertiary Butyl Ether (MTBE) An ether compound added to gasoline to provide oxygen and enhance complete combustion. MTBE is a volatile organic compound made as a byproduct of petroleum refinery operations by combining methanol derived from natural gas and isobutylene.

the univalent radical CH3- derived from methane

tert-butyl ether 0.05 N.D. N.D. N.D. N.D. N.D. N.D. 0.0007 N.D. N.D.