InChI=1S/C36H30O15/c1-47-30-20(39)9-15(10-21(30)40)7-8-17-11-18(37)12-22-25(17)36(35(46)50-22)26-23(48-32(36)16-5-3-2-4-6-16)13-19(38)14-24(26)49-34-29(43)27(41)28(42)31(51-34)33(44)45/h2-14,27-29,31-32,34,37-43H,1H3,(H,44,45)/b8-7+