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