InChI=1S/C36H26O16/c37-15-8-17(38)27-18(39)10-23(49-24(27)9-15)14-6-16(29(43)21(42)7-14)26-25(51-36-32(46)30(44)31(45)34(52-36)35(47)48)12-20(41)28-19(40)11-22(50-33(26)28)13-4-2-1-3-5-13/h1-12,30-32,34,36-38,41-46H,(H,47,48)