49810-02-8 | diethyl 1-(2,6-diamino-4-oxo-1,4-dihydropyrimidin-5-yl)hydrazine-1,2-dicarboxylate | C10H16 N6 O5 |
49810-16-4 | diethyl 1-[6-(2-benzylidenehydrazinyl)-1,3-dimethyl-2,4-dioxo-1,2,3,4-tetrahydropyrimidin-5-yl]hydrazine-1,2-dicarboxylate | C19H24 N6 O6 |