InChI=1S/C32H24Cl2O9/c1-11-4-13-21(19(5-11)42-2)31(40)25-15(36)8-17(38)29(33)27(25)23(13)24-14-6-12(10-35)7-20(43-3)22(14)32(41)26-16(37)9-18(39)30(34)28(24)26/h4-9,23-24,35-39H,10H2,1-3H3/t23-,24-/m1/s1