InChI=1S/C36H34O18/c37-13-22-26(43)28(45)33(32(52-22)25-19(40)11-18(39)24-20(41)12-21(51-31(24)25)15-4-6-16(38)7-5-15)53-23(42)10-3-14-1-8-17(9-2-14)50-36-30(47)27(44)29(46)34(54-36)35(48)49/h1-12,22,26-30,32-34,36-40,43-47H,13H2,(H,48,49)/b10-3+