Cyanocobalamine Impurities

Cyanocobalamine Impurities are structurally related degradation byproducts arising from oxidative or hydrolytic modifications of the parent corrinoid core. These impurities retain the tricyclic corrin framework with cobalt coordination but exhibit altered substituents at the 5-position, such as hydroxyl or carboxyl groups, or loss of the cyanide ligand. Key functional groups include the 5-deoxyribitol side chain and disrupted cobalt-ligand interactions. These impurities are critical for HPLC-based quantification of degradation pathways in Cyanocobalamine formulations.