InChI=1S/C22H24O11/c1-30-14-7-10(4-6-12(14)23)3-5-11-8-15(31-2)16(9-13(11)24)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)/b5-3+