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