InChI=1/C26H20Cl2N2O4/c1-34-25(33)26(16-7-3-2-4-8-16)21-20(22(29-26)15-6-5-9-18(28)14-15)23(31)30(24(21)32)19-12-10-17(27)11-13-19/h2-14,20-22,29H,1H3/t20-,21+,22-,26+/m0/s1 CFD9B3548CC71ED7