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