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