IUPAC names nitriles by adding the suffix -nitrile to the name of the alkane with the same number of carbons.
[1] Methanenitrile
[2] Ethanenitrile
[3] Ethanedinitrile
[4] 3-Methylbutanenitrile
When they act as substituents, the particle cyano- ..... is used, preceding the name of the main chain.
[5] 3-Bromo-5-cyanohexanoic acid
[6] 3-Cyanocyclohexanecarboxylic acid
Cyclic bonded nitriles are named by ending the ring name in -carbonitrile
[7] Benzenecarbonitrile (Benzonitrile)
[8] 3-Oxocyclohexanecarbonitrile
[9] 3-Bromo-5-hydroxycyclohexanecarbonitrile