InChI=1S/C25H20O9/c26-16-10-13-3-1-2-12-6-9-15(18(17(12)13)19(16)27)11-4-7-14(8-5-11)33-25-22(30)20(28)21(29)23(34-25)24(31)32/h1-10,20-23,25-26,28-30H,(H,31,32)