InChI=1S/C54H52O19/c55-22-39-45(62)47(64)49(66)53(72-39)68-34-17-28(16-32(60)18-34)42-43-36(20-35(69-54-50(67)48(65)46(63)40(23-56)73-54)21-38(43)71-51(42)25-5-11-30(58)12-6-25)44-41-27(4-1-24-2-9-29(57)10-3-24)15-33(61)19-37(41)70-52(44)26-7-13-31(59)14-8-26/h1-21,39-40,42,44-67H,22-23H2/b4-1+