InChI=1S/C36H34O17/c37-17-5-1-12(7-20(17)40)31-23(43)10-16-19(39)11-22(42)26(33(16)52-31)25-15-4-3-14(50-36-30(47)28(45)29(46)34(53-36)35(48)49)9-24(15)51-32(27(25)44)13-2-6-18(38)21(41)8-13/h1-9,11,23,25,27-32,34,36-47H,10H2,(H,48,49)