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