InChI=1/C13H18N4O4S2/c18-12(16-15-10-1-6-23(19,20)9-10)7-11-8-22-13(14-11)17-2-4-21-5-3-17/h8H,1-7,9H2,(H,16,18)/b15-10-/f/h16H AA4B17625E44D17E