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