InChI=1S/C20H24O12/c1-20(2)6-9(21)8-5-7(3-4-10(22)23)15(14(27)16(8)32-20)30-19-13(26)11(24)12(25)17(31-19)18(28)29/h5,11-13,17,19,24-27H,3-4,6H2,1-2H3,(H,22,23)(H,28,29)