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