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