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