InChI=1S/C36H32O17/c37-14-3-1-2-13(6-14)36-33(46)26(24-20(41)8-16(39)9-22(24)52-36)25-23(53-36)11-19(40)18-10-21(42)30(50-31(18)25)12-4-15(38)7-17(5-12)49-35-29(45)27(43)28(44)32(51-35)34(47)48/h1-9,11,21,26-30,32-33,35,37-46H,10H2,(H,47,48)