1,2,4-triazolo[4,3-a]pyrimidin-5(8H)-one, 7,8-dimethyl-3-(methylthio)- 7,8-dimethyl-3-(methylthio)[1,2,4]triazolo[4,3-a]pyrimidin-5(8H)-one InChI=1/C8H10N4OS/c1-5-4-6(13)12-7(11(5)2)9-10-8(12)14-3/h4H,1-3H