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