InChI=1S/C37H28O16/c1-49-17-9-20(39)29-23(42)12-26(51-27(29)10-17)15-4-7-19(38)18(8-15)28-21(40)11-22(41)30-24(43)13-25(52-34(28)30)14-2-5-16(6-3-14)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)