(2R,6R,8S)-8-[(2β,3β,4β,5α,12R,19α)-4-(Acetyloxy)-6,7-didehydro-3-hydroxy-16-methoxy-3-(methoxycarbonyl)-1-methylaspidospermidin-15-yl]-4-ethyl-1,3,6,7,8,9-hexahydro-2-methyl-2,6-methano-2H-azecino[4,3-b]indolium Iodide; [2R-(2R*,6R*,8S*)]-8-[(2β,3β,4β,5α,12β,19α)-4-(Acetyloxy)-6,7-didehydro-3-hydroxy-16-methoxy-3-(methoxycarbonyl)-1-methylaspidospermidin-15-yl]-4-ethyl-1,3,6,7,8,9-hexahydro-2-methyl-2,6-methano-2H-azecino[4,3-b]indolium Iodide; 3',4'-Didehydro-4'-deoxy-6'-methyl-C'-norvincaleukoblastinium Iodide; Vinorelbine EP Impurity F