8-methyl[1,2,4]triazolo[5,1-c][1,2,4]triazin-4(8H)-one InChI=1/C5H5N5O/c1-9-3-7-10-4(11)2-6-8-5(9)10/h2-3H,1H [1,2,4]triazolo[5,1-c][1,2,4]triazin-4(8H)-one, 8-methyl-