6-(N'-formyl-hydrazino)-1,3-dimethyl-5-nitroso-1H-pyrimidine-2,4-dione

6-hydrazino-1,3-dimethyl-1H-pyrimidine-2,4-dione

formic acid N'-(1,3-dimethyl-2,6-dioxo-1,2,3,6-tetrahydro-pyrimidin-4-yl)-hydrazide

甲酸

甲亚胺酸