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