Synonyms: Cobinamide,cyanide hydroxide, dihydrogen phosphate (ester), inner salt, 3'-ester with5-ethoxy-1-a-D-ribofuranosylbenzimidazole(8CI); Cobinamide, cyanide, dihydrogen phosphate (ester), inner salt, 3'-esterwith 5-ethoxy-1-a-D-ribofuranosyl-1H-benzimidazole;Cobinanide, cyanide phosphate, 3'-ester with 5-ethoxy-1-a-D-ribofuranosylbenzimidazole,inner salt (7CI); Cyano-5-ethoxybenzimidazolylcobamide; Factor IIIe; FactorIIIe (vitamin B12 analog)