4-甲氧基苯甲醛缩氨基脲

aminourea,nitric acid

(3,3-dimethylbutan-2-ylideneamino)urea

5-(5-硝基呋喃-2-基)-1,3,4-恶二唑-2-胺

2-[1-(2-噻吩)亚乙基]肼羧酰胺