InChI=1/C16H10Cl2N2O2/c17-14-4-2-12(8-15(14)18)20-16(21)22-13-3-1-10-5-6-19-9-11(10)7-13/h1-9H,(H,20,21)/f/h20H 0DF4BE359A93D2D6