5-methyl-6-nitro[1,2,4]triazolo[1,5-a]pyrimidin-7(4H)-one InChI=1/C10H8N4S/c11-9-13-14-6-8(12-10(14)15-9)7-4-2-1-3-5-7/h1-6H,(H2,11,13 [1,2,4]triazolo[1,5-a]pyrimidin-7(4H)-one, 5-methyl-6-nitro-