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