InChI=1S/C40H34O17/c1-38-14-21(19-12-24(44)25(45)13-27(19)55-38)39-30(35(38)50)29-26(46)8-15(9-28(29)56-40(39,57-39)20-7-5-17(41)10-23(20)43)2-3-16-4-6-18(11-22(16)42)53-37-33(49)31(47)32(48)34(54-37)36(51)52/h2-13,21,30-34,37,41-49H,14H2,1H3,(H,51,52)/b3-2+