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