InChI=1/C23H18N2O4S/c1-15-12-16(2)14-25(13-15)21-20(24-30(28,29)17-8-4-3-5-9-17)22(26)18-10-6-7-11-19(18)23(21)27/h3-14H,1-2H3/p+1/fC23H19N2O4S/h24H/q+1 BE41984E0D8C79F5