1,2,3,4-Tetrahydro-1,3-dimethyl-5-nitroso-6-(2,2-diacetylvinyl)hydrazinopyrimidine-2,4-dione 113597-41-4 2,4,6(1H,3H,5H)-Pyrimidinetrione, 1,3-dimethyl-5-nitroso-, 4-((2-acetyl-3-oxo-1-butenyl)hydrazone