2-[5-(diaminomethylideneamino)pentyl]guanidine

4-methyl-5-[2-(3-nitroanilino)pyrimidin-4-yl]-1,3-thiazol-2-amine

N-cyano-3-nitrobenzamide

4-chloro-N-cyanobenzamide

2-chloro-N'-cyanoethanimidamide