InChI=1/C23H17NO4S2/c1-13-3-9-18(14(2)11-13)24-21(25)20(30-23(24)29)12-17-8-10-19(28-17)15-4-6-16(7-5-15)22(26)27/h3-12H,1-2H3,(H,26,27)/p-1/b20-12-/fC23H16NO4S2/q-1 B89FBC8A8FE8104F