In this article we will discuss about:- 1. Historical Review of Cyanocobalamin 2. Chemical Structure of Cyanocobalamin 3. Properties and Distribution 4. Functions 5. Deficiency 6. Daily Requirement. Historical Review of Cyanocobalamin: (Vitamin B12, Cobamide) (Antipernicious Anaemia Factor, Extrinsic Factor of Castle) In 1948 Smith and Parker isolated cyanocobalamin from the liver. In 1955 its […]