InChI=1S/C25H22O9/c26-18-14(33-25-21(29)19(27)20(28)23(34-25)24(30)31)8-11-9-15-22(32-15)13-7-6-12(17(18)16(11)13)10-4-2-1-3-5-10/h1-7,9,14-15,19-23,25,27-29H,8H2,(H,30,31)