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