Vitamin B-12

For Laboratory Research Use Only — Not for Human or Veterinary Use.

Standard (< 1,000 vials)$140/kit

Volume (1,000+ vials)$100/kit

Quantity (kits)

= 10 vials

Minimum order: 100 vials total. Mix and match across all products.

I confirm this order is for laboratory research use only.For Laboratory Research Use Only — Not for Human or Veterinary Use. By checking this box you affirm this product will not be used for human or animal administration.

Specifications

CAS Number	68-19-9
Molecular Formula	C63H88CoN14O14P
Molecular Weight	1355.37 g/mol
Purity	≥98% (HPLC)
Form	Lyophilized Powder
Storage	-20°C, desiccated, protected from light
Reconstitution	Bacteriostatic water

Certificate of Analysis

Lot documentation

Every production lot is independently third-party tested. A batch-specific Certificate of Analysis — documenting HPLC purity, mass spectrometry identity confirmation, and net peptide content — is issued with every shipment. View a sample COA to see the format.

View Sample COA About our testing →

Research context

Vitamin B-12 (cyanocobalamin) is a cobalt-containing cobalamin cofactor rather than a peptide, with molecular formula C63H88CoN14O14P and a central corrin ring coordinating a trivalent cobalt ion. In biochemical research it is studied as a precursor to the coenzyme forms methylcobalamin and adenosylcobalamin, which act as cofactors for the enzymes methionine synthase and methylmalonyl-CoA mutase.

Studies have characterized cobalamin binding to transport proteins such as intrinsic factor and transcobalamin, and its role in enzyme catalysis in isolated systems and cell cultures, as well as its distribution in rodent models. Analytical characterization commonly uses UV-visible spectrophotometry, HPLC, and mass spectrometry to establish identity, molecular mass, and purity.

This compound is supplied strictly for in-vitro laboratory research and analytical use. It is not intended for human or veterinary administration, and no statements herein constitute a therapeutic claim or dosing recommendation.