InChI=1S/C25H26O9/c1-13(2)3-10-17-18(27)11-15(5-4-14-6-8-16(26)9-7-14)12-19(17)33-25-22(30)20(28)21(29)23(34-25)24(31)32/h3-12,20-23,25-30H,1H2,2H3,(H,31,32)/b5-4+,10-3+