InChI=1S/C40H34O16/c1-38-15-23(21-8-6-20(43)14-26(21)54-38)39-30(35(38)49)29-27(52-37-33(48)31(46)32(47)34(53-37)36(50)51)10-16(2-3-17-4-5-18(41)12-24(17)44)11-28(29)55-40(39,56-39)22-9-7-19(42)13-25(22)45/h2-14,23,30-34,37,41-48H,15H2,1H3,(H,50,51)/b3-2+