2-[(2,4-二氯苯基)亚甲基]-肼羧酰胺

2-[(4-oxocyclohexa-2,5-dien-1-ylidene)methylamino]guanidine

(2E)-2-(diaminomethylidenehydrazinylidene)propanoic acid

2-[(E)-[4-(dimethylamino)phenyl]methylideneamino]guanidine