InChI=1S/C36H28O16/c37-21-5-1-17(10-24(21)40)13-28(34(45)46)50-30(44)8-3-16-9-20-31(32(52-33(20)27(43)12-16)19-4-7-23(39)26(42)15-19)36(49)51-29(35(47)48)14-18-2-6-22(38)25(41)11-18/h1-12,15,28-29,37-43H,13-14H2,(H,45,46)(H,47,48)/b8-3+/t28-,29-/m1/s1