InChI=1S/C19H17ClN2O6S/c1-28-18(24)16-15(10-29(26,27)14-4-2-3-12(20)9-14)21-19(25)22-17(16)11-5-7-13(23)8-6-11/h2-9,17,23H,10H2,1H3,(H2,21,22,25)