Succinonitrile

Succinonitrile, also butanedinitrile, is a nitrile, with the formula of C2H4(CN)2. It is a colourless, waxy solid, that melts at 57 °C. Succinonitrile is produced by the addition of hydrogen cyanide to acrylonitrile. Hydrogenation of succinonitrile yields 1,4-diaminobutane.