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