InChI=1S/C40H32O17/c1-38-13-21(18-4-2-15(41)9-27(18)55-38)39-30(35(38)49)29-24(45)6-14(25-12-19-22(43)8-16(42)10-26(19)53-25)7-28(29)56-40(39,57-39)20-5-3-17(11-23(20)44)52-37-33(48)31(46)32(47)34(54-37)36(50)51/h2-12,21,30-34,37,41-48H,13H2,1H3,(H,50,51)