InChI=1S/C37H28O16/c1-49-24-6-5-15(8-18(24)28-20(40)11-21(41)30-23(43)13-26(52-34(28)30)14-3-2-4-16(38)7-14)25-12-22(42)29-19(39)9-17(10-27(29)51-25)50-37-33(46)31(44)32(45)35(53-37)36(47)48/h2-13,31-33,35,37-41,44-46H,1H3,(H,47,48)