InChI=1/C13H18N4O2S/c1-9-13(10(2)16-15-9)17-20(18,19)8-12-5-3-4-11(6-12)7-14/h3-6,17H,7-8,14H2,1-2H3,(H,15,16)/p+1/fC13H19N4O2S/h14-15H/q+1 2FF49326514302F6