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