InChI=1S/C25H20O9/c26-15-10-12-5-3-4-11-8-9-14(18(17(11)12)19(15)27)13-6-1-2-7-16(13)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)