4-Cyanophenylhydrazine hydrochloride4-Hydrazinobenzonitrile hydrochloride4-Cyanophenylhydrazine hydrochloride4-氰基苯肼 盐酸盐4-肼基苯甲腈 盐酸盐4-Cyanophenylhydrazine hydrochloride4-Hydrazinobenzonitrile hydrochloride4-氰基苯肼盐酸盐4-Hydrazinylbenzonitrile Hydrochloride4-(Hydrazino)benzonitrile Hydrochloride