InChI=1/C20H13Cl2N2O4S/c1-2-24-19(25)14-5-3-4-11-8-13(10-15(18(11)14)20(24)26)29(27,28)23-12-6-7-16(21)17(22)9-12/h3-10H,2H2,1H3/q-1 B21D4EBF41CFB265