InChI=1/C13H10Cl2N2O3/c14-8-3-4-11(9(15)6-8)20-7-12(19)17-13-10(18)2-1-5-16-13/h1-6,18H,7H2,(H,16,17,19)/p-1/fC13H9Cl2N2O3/h18h,17H/q-1 67A7D16B26FE722E