I'll remind the group that all nitriles are cyanogens, either from spontaneous decomposition or by hepatic enzyme activity.
Read more in:
Borron SW: Cyanogenic Aliphatic Nitriles, in: Hall AH, Isom GE, Rockwood GA (eds),Toxicology of Cyanides: Experimental, Applied andCclinical Aspects,Wiley Blackwell, 2015,pp. 1666-180.