InChI=1S/C36H34O20/c37-14-5-3-13(8-16(14)39)19-9-17(40)24-21(53-19)10-18(41)25(27(24)44)33-30(47)28(45)26(43)22(54-33)11-52-23(42)6-2-12-1-4-15(38)20(7-12)55-36-32(49)29(46)31(48)34(56-36)35(50)51/h1-10,22,26,28-34,36-39,41,43-49H,11H2,(H,50,51)/b6-2+