Hydrocarbon suffixes

Suffixes for simple hydrocarbons are determined by the type of bonds present. See Figure 1 which suffixes apply.

Butane, C H 3, C H 2, C H 2, C H 3, is an alkane. The suffix in butane is, A, N, E, and it means the molecule is an alkane. Ethene, C H 2, C H 2, is an alkene. The suffix in ethene is, E, N, E, and it means the molecule is an alkene. Propyne, C H, C, C H 3, is an alkyne. The suffix in propyne is, Y, N, E, and it means the molecule is an alkyne.