Hydroxocobalamin and its Impurities
Hydroxocobalamin, also known as vitamin B12a and hydroxycobalamin, is an injectable form of vitamin B 12 that has been used therapeutically to treat vitamin B 12 deficiency. It is also used in cyanide poisoning, Leber's optic atrophy, and toxic amblyopia. Reference standards of Hydroxocobalamin API, and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below.