InChI=1S/C36H32O16/c37-12-25-30(45)32(47)33(48)36(52-25)51-24-11-21(44)26-20(43)10-22(14-3-6-17(40)18(41)7-14)49-35(26)28(24)29-31(46)27-19(42)8-16(39)9-23(27)50-34(29)13-1-4-15(38)5-2-13/h1-9,11,22,25,29-30,32-34,36-42,44-45,47-48H,10,12H2