InChI=1S/C25H28O9/c1-4-6-13-9-16-12(2)21(14-7-5-8-15(11-14)31-3)33-22(16)17(10-13)32-25-20(28)18(26)19(27)23(34-25)24(29)30/h4-12,18-21,23,25-28H,1-3H3,(H,29,30)