InChI=1S/C25H20O10/c1-33-19-6-10(2-3-14(19)27)23-21(25(31)32)13-4-11(5-17(30)24(13)35-23)18-9-16(29)22-15(28)7-12(26)8-20(22)34-18/h2-8,18,21,23,26-28,30H,9H2,1H3,(H,31,32)