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