Antipernicious Anemia Factor. Vitamin B 12 is a chelate with cobalt attached to a CN group in the center. Quite stable under normal storage.
More dilute forms have lower stability.
Pure vitamin B 12 is soluble in water. Water dispersible vitamin B 12 products often contain a sucrose carrier. It functions as a conenzyme in several metabolic systems. It is needed for growth and reproduction in all animals. It is added to swine, poultry and other monogastric animal feeds.