Synonyms: Vinxaltine sulfate;Vinfosiltine sulfate;Servier-12363;S-12363;[23(S)]-4-Deacetyl-3-de(methoxycarbonyl)-3-[(2-methyl-1-phosphonopropyl)carbamoyl]vincaleukoblastine diethyl ester sulfate;methyl 9-(3-{[1-(diethoxyphosphoryl)-2-methylpropyl]carbamoyl}-3,4-dihydroxy-16-methoxy-1-methyl-6,7-didehydroaspidospermidin-15-yl)-5-ethyl-5-hydroxy-1,4,5,6,7,8,9,10-octahydro-2H-3,7-methanoazacycloundecino[5,4-b]indole-9-carboxylate sulfate (1:1)