InChI=1/C15H12ClN2O4S/c1-9-2-4-10(5-3-9)18-23(20,21)14-7-13-12(6-11(14)16)17-15(19)8-22-13/h2-7H,8H2,1H3,(H,17,19)/q-1/f/h17H 29C00B500403B0BE