InChI=1S/C25H28O10/c1-12(2)3-10-16-17(34-25-22(31)20(29)21(30)23(35-25)24(32)33)11-14(18(27)19(16)28)7-4-13-5-8-15(26)9-6-13/h3-12,20-23,25-31H,1-2H3,(H,32,33)/b7-4+,10-3+