The common and IUPAC names of some cyanide and isocyanide compounds

Molecular formula	Common name	IUPAC Name
CH3CN	Methyl cyanide or acetonitrile	Ethenenitrile
C2H5CN	Ethyl cyanide or Propiononitrile	Propanenitrile
CH3NC	Methyl isocyanide	Isocyanomethane
CH2 = CH‐CN	Vinylcyanide or Acrylonitrile	Prop‐2‐en‐nitrile
C2H5NC	Ethyl isocyanide	Isopropionitrile