Vitamin B12, USP

- Overview
  - Vitamin B12 has the largest and most complicated structure of the B vitamins. Vitamin B12 is soluble in aqueous solution at 12.5 mg/mL.
    
    Please contact us at for specific academic pricing.
    
    Background
    
    Vitamin B12 is required for DNA synthesis as it serves as a precursor for the amino acid methionine. This is consistent with a finding that bacterial cells with a vitamin B12 deficiency have significantly less cellular DNA content. In addition, vitamin B12 is converted into s-adenosylmethionine, a broad spectrum methyl group donor for >100 different substrates including DNA, RNA, and a number of proteins.
- Properties
  - CAS Number
    
    68-19-9
    
    Molecular Formula
    
    C63H88CoN14O14P
    
    Molecular Weight
    
    1355.37
    
    Appearance
    
    Pink or Red Powder
    
    Solubility
    
    Water: Soluble
    
    Other Properties
    
    Assay 96.0-100.5
    Loss on Drying: ≤12.0%
    Melting Point: >392 °C
    
    Storage
    
    2-8 °C
    
    * For research use only
- Applications
  - Application Description
    
    Microbiology Applications: Because of its role in a number of essential cellular processes, vitamin B12 is frequently used as a cell culture media supplement.