113458-71-2 Pyrimido(5,4-e)-1,2,4-triazine-3,5,7(6H)-trione, 2,4,4a,8-tetrahydro-4a-(2,5-dihydro-3-methyl-5-oxo-1-phenyl-1H-pyrazol-4-yl)-6,8-dimethyl-