InChI=1S/C22H24O11/c1-30-14-8-10(3-4-11-7-12(23)16(24)15(9-11)31-2)5-6-13(14)32-22-19(27)17(25)18(26)20(33-22)21(28)29/h3-9,17-20,22-27H,1-2H3,(H,28,29)/b4-3+