InChI=1S/C25H20O9/c26-16-10-13-5-1-3-11-7-8-15(18(17(11)13)19(16)27)12-4-2-6-14(9-12)33-25-22(30)20(28)21(29)23(34-25)24(31)32/h1-9,20-23,25,28-30H,10H2,(H,31,32)