InChI=1S/C20H24O12/c1-20(7-21)6-10(22)9-4-8(2-3-13(23)24)11(5-12(9)32-20)30-19-16(27)14(25)15(26)17(31-19)18(28)29/h4-5,14-17,19,21,25-27H,2-3,6-7H2,1H3,(H,23,24)(H,28,29)