Nitrile-function compounds

292610 Nitrile-function compounds; acrylonitrile 292620 Nitrile-function compounds; 1-cyanoguanidine (dicyandiamide) 292630 Nitrile-function compounds; fenproporex (INN) and its salts; methadone (INN) intermediate (4-cyano-2-dimethylamino-4,4-diphenylbutane) 292640 Nitrile-function compounds; alpha-phenylacetoacetonitrile 292690 Nitrile-function compounds; n.e.c. heading no. 2926