InChI=1S/C19H12Cl4N2O5S/c20-10-1-5-16(30-17-6-2-11(21)8-18(17)31(27,28)29)15(7-10)25-19(26)24-12-3-4-13(22)14(23)9-12/h1-9H,(H2,24,25,26)(H,27,28,29)