InChI=1S/C36H30O17/c37-14-4-1-12(2-5-14)32-27(26-20(42)10-19(41)24-21(43)11-22(51-33(24)26)13-3-6-16(38)17(39)7-13)28(44)25-18(40)8-15(9-23(25)52-32)50-36-31(47)29(45)30(46)34(53-36)35(48)49/h1-10,22,27,29-32,34,36-42,45-47H,11H2,(H,48,49)