InChI=1S/C36H32O17/c37-14-3-1-2-12(4-14)30-21(42)10-18-19(40)11-23-25(31(18)50-30)26-24-20(41)8-16(39)9-22(24)52-36(53-23,33(26)46)13-5-15(38)7-17(6-13)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)