7-methyl-2-phenyl-3,3a-dihydropyrazolo[1,5-d][1,2,4]triazin-4(5H)-one InChI=1/C12H12N4O/c1-8-13-14-12(17)11-7-10(15-16(8)11)9-5-3-2-4-6-9/h2-6,11H,7H2,1H3,(H,14,17 pyrazolo[1,5-d][1,2,4]triazin-4(5H)-one, 3,3a-dihydro-7-methyl-2-phenyl-