4,5-dimethyl-6-nitro[1,2,4]triazolo[1,5-a]pyrimidin-7(4H)-one InChI=1/C7H7N5O3/c1-4-5(12(14)15)6(13)11-7(10(4)2)8-3-9-11/h3H,1-2H [1,2,4]triazolo[1,5-a]pyrimidin-7(4H)-one, 4,5-dimethyl-6-nitro-