InChI=1S/C36H36O17/c1-15-32(52-36-30(46)28(44)26(42)23(51-36)14-48-24(41)11-4-16-2-7-18(37)8-3-16)29(45)31(47)35(49-15)53-34-27(43)25-21(40)12-20(39)13-22(25)50-33(34)17-5-9-19(38)10-6-17/h2-13,15,23,26,28-32,35-40,42,44-47H,14H2,1H3/b11-4+