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