Synonyms: Cobinamide,cyanide hydroxide, dihydrogen phosphate (ester), inner salt, 3'-ester with5-methoxy-1-a-D-ribofuranosylbenzimidazole(8CI); Cobinamide, cyanide phosphate, 3-ester with 5-methoxy-1-a-D-ribofuranosylbenzimidazole,inner salt (7CI); Cobinamide, cyanide, dihydrogen phosphate (ester), innersalt, 3'-ester with 5-methoxy-1-a-D-ribofuranosyl-1H-benzimidazole; 5-Methoxybenzimidazole vitamin B12;5-Methoxybenzimidazolylcobalamin; Cyano-5-methoxybenzimidazolylcobamide; FactorIIIm; Factor IIIm (vitamin B12 analog); Vitamin B 12 factor IIIm