InChI=1S/C20H26O12/c1-20(2)11(32-20)4-7-9(21)6-10(22)8(16(7)29-3)5-12(23)30-19-15(26)13(24)14(25)17(31-19)18(27)28/h6,11,13-15,17,19,21-22,24-26H,4-5H2,1-3H3,(H,27,28)