InChI=1/C13H16N4O2S/c14-12-2-1-8-16-13(12)17-9-7-10-3-5-11(6-4-10)20(15,18)19/h1-6,8H,7,9,14H2,(H,16,17)(H2,15,18,19)/p+1/fC13H17N4O2S/h16-17H,15H2/q+1 E75D1F19F6B17C6F