InChI=1/C19H15Cl2NO4/c20-12-1-4-14(5-2-12)25-11-19(24)22-13-3-7-16(17(21)9-13)18-8-6-15(10-23)26-18/h1-9,23H,10-11H2,(H,22,24)/f/h22H 6DFD19ED3C8B73D5