InChI=1S/C36H26O17/c37-14-4-1-12(2-5-14)20-11-19(41)26-28(43)29(44)27(42)24(33(26)51-20)16-7-13(3-6-17(16)39)21-10-18(40)25-22(50-21)8-15(38)9-23(25)52-36-32(47)30(45)31(46)34(53-36)35(48)49/h1-11,30-32,34,36-39,42-47H,(H,48,49)