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