InChI=1/C20H12Cl4N2O2S/c21-11-1-4-16(17(24)10-11)18-5-2-15(28-18)3-6-19(27)26-20(29)25-14-8-12(22)7-13(23)9-14/h1-10H,(H2,25,26,27,29)/b6-3+/f/h25-26H 4CF6DE128E2BA499