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