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