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