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