InChI=1S/C33H26O23/c34-3-7(36)16(38)18(40)8-2-4-10(31(50)52-8)11(19(41)20(42)15(4)37)13-14-12-9-5(1-6(35)17(39)25(9)54-32(14)51)30(49)53-26(12)24(46)27(13)55-33-23(45)21(43)22(44)28(56-33)29(47)48/h1-2,7,16,18,21-23,28,33-46H,3H2,(H,47,48)