InChI=1S/C36H28O16/c37-10-11-6-15-21(22-14-4-5-18(39)27(41)26(14)29(43)24-16(22)8-12(34(47)48)9-19(24)40)13-2-1-3-17(38)23(13)28(42)25(15)20(7-11)51-36-32(46)30(44)31(45)33(52-36)35(49)50/h1-9,21-22,30-33,36-41,44-46H,10H2,(H,47,48)(H,49,50)