InChI=1S/C18H22Cl2O10/c1-28-9-3-7(2-8(21)5-11(22)16(19)20)4-10(6-9)29-18-14(25)12(23)13(24)15(30-18)17(26)27/h3-4,6,11-16,18,22-25H,2,5H2,1H3,(H,26,27)