InChI=1S/C36H26O17/c37-16-6-3-13(23-10-20(41)27-24(51-23)11-21(42)28(43)29(27)44)7-15(16)25-17(38)8-18(39)26-19(40)9-22(52-33(25)26)12-1-4-14(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)