InChI=1S/C24H22O9/c1-2-13(12-8-4-3-5-9-12)16-20(14-10-6-7-11-15(14)31-23(16)30)32-24-19(27)17(25)18(26)21(33-24)22(28)29/h2-11,13,17-19,21,24-27H,1H2,(H,28,29)