InChI=1S/C13H16Cl12O8/c14-10(15,16)5(26)30-1-9(2-31-6(27)11(17,18)19,3-32-7(28)12(20,21)22)4-33-8(29)13(23,24)25/h5-8,26-29H,1-4H2