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