InChI=1S/C18H22Cl2O11/c1-29-10-4-6(2-7(21)5-9(23)16(19)20)3-8(22)14(10)30-18-13(26)11(24)12(25)15(31-18)17(27)28/h3-4,9,11-13,15-16,18,22-26H,2,5H2,1H3,(H,27,28)