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