InChI=1/C15H13ClN2O6S/c1-22-12-7-13(23-2)11(6-9(12)16)18-25(20,21)8-3-4-10-14(5-8)24-15(19)17-10/h3-7,18H,1-2H3,(H,17,19)/f/h17H 8A3F78D27C09E2E3