Overview

Cyanocobalamin (sye-AN-oh-koh-BAL-uh-min) is more commonly known as vitamin B₁₂. At least three active forms of the vitamin are known. They include hydroxocobalamin and nitrocobalamin, in addition to cyanocobalamin, all with slightly different molecular structures. Cyanocobalamin occurs as dark red crystals or a red powder that is odorless and tasteless. When heated, the compound darkens above 200°C (392°F), but does not melt when heated further.

Key Facts

Other Names:

Cobalamin; vitamin B₁₂

Formula:

C₆₃H₈₈CoN₁₄O₁₄P

Elements:

Carbon, hydrogen, cobalt, nitrogen, oxygen, phosphorus

Compound Type:

Heterocyclic ring (organic)

State:

Solid

Molecular Weight:

1355.36 g/mol

Melting Point:

Undetermined; greater than 300°C (575°F)

Boiling Point:

Not applicable

Solubility:

Soluble in water in alcohol; insoluble in acetone, ether, and chloroform

Cyanocobalamin is required for the synthesis of DNA in cells and for the proper functioning of red blood cells and nerves. A deficiency of vitamin B₁₂ in the diet...