InChI=1/C15H10Cl2N2O2/c1-8-2-4-10-13(6-8)18-15(21)19(14(10)20)9-3-5-11(16)12(17)7-9/h2-7H,1H3,(H,18,21)/f/h18H 9F96D4EF37841E4E