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