InChI=1/C18H18N4O4S/c1-3-15-17(22-11-5-4-6-16(22)20-15)18(24)19-13-7-9-14(10-8-13)27(25,26)21-12(2)23/h4-11H,3H2,1-2H3,(H,19,24)(H,21,23)/p-1/fC18H17N4O4S/h19H/q-1 0A4FDC42059DED38