InChI=1S/C36H30O16/c37-15-6-4-13(5-7-15)32-27(28(43)25-18(40)9-17(39)10-22(25)50-32)26-23(51-36-31(46)29(44)30(45)34(52-36)35(47)48)12-20(42)24-19(41)11-21(49-33(24)26)14-2-1-3-16(38)8-14/h1-10,12,21,27,29-32,34,36-40,42,44-46H,11H2,(H,47,48)