草单鸟苷酰肼

N-(diaminomethylideneamino)formamide,nitric acid

1-(亚水杨基氨基)胍

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

3-甲基-5-氧代-2,5-二氢-1H-吡唑-1-甲脒