InChI=1S/C20H18ClN3O4S/c1-28-18-8-10-19(11-9-18)29(26,27)24(17-6-4-15(21)5-7-17)14-20(25)23-16-3-2-12-22-13-16/h2-13H,14H2,1H3,(H,23,25)