InChI=1S/C30H20O10/c1-10-4-14-22(16-8-12(31)9-20(35)25(16)28(37)23(14)18(33)5-10)21-13-2-3-17(32)27(36)26(13)29(38)24-15(21)6-11(30(39)40)7-19(24)34/h2-9,21-22,31-36H,1H3,(H,39,40)