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