1899-60-1

6-Ethyl-2-hydrazinylpyrimidin-4(3H)-one 6-Ethyl-2-hydrazinopyrimidin-4(3{H})-one 4(3H)-Pyrimidinone, 6-ethyl-2-hydrazinyl- 6-Ethyl-2-hydrazinyl-3,4-dihydropyrimidin-4-one 6-ethyl-2-hydrazinyl-3,4-dihydropyrimidine-4-one