• Bacitracin F, EvoPure packaged and labeled.

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SKU: B021

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Bacitracin is comprised of numerous antimicrobial peptide fractions. Notable fractions include A, A1, B, B1, B2, C, D, E, F, G, and X. Standard grade bacitracin (B002) is a mixture of these fractions. Bacitracin A is the most active and potent peptide fraction in bacitracin and is very similar to its bacitracin B counterpart.

For more bacitracin products, including fractions, click here.

Webb et al. used Bacitracin F, EvoPure to study its effect on protein disulfide isomerase (PDI) inhibition. Read more here: Dose-Response Models Reveal Critical Features of Inhibitor Activity and Viral Infection.

Waterman et al. used bacitracin F, EvoPure from TOKU-E as a reference standard to confirm the formation of the degradant product, bacitracin F from the active, bacitracin A. Read more here: "Accelerated Stability Modeling for Peptides: a Case Study with Bacitracin."

    CAS Number


    Molecular Formula


    Molecular Weight

    1419.65 g/mol

    Mechanism of Action

    Bacitracin prevents phosphorylation of bactoprenol; a transport protein which carries peptidoglycan components outside the cell membrane. Without the active phosphorylated bactoprenol, peptidoglycan synthesis cannot be complete and the cell lyses. Two mechanisms of bacitracin resistance are understood. One mechanism relies on a protein called a BcrABC transporter which pumps bacitracin out after it has entered the cell. An alternative mechanism is due to another protein called BacA which provides the active phosphorylated bactoprenol from a different synthetic pathway.

    Storage Conditions


    Tariff Code



    Bacitracin primarily targets the cell wall in members of the gram positive bacteria including Streptococcus pyogenes and Staphylococcus aureus.



    Bacitracin F, EvoPure® can be used to study properties and characteristics of bacitracin F separately from other bacitracin compounds found in standard grade bacitracin. Bacitracin F, EvoPure® can also be used as an analytical standard.





    White or off-white powder


    Bacillus subtilis var Tracy


    ≥95% (HPLC)

Technical Data

Spectral Data - Bacitracin F, EvoPure®

HNMR Spectra


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FTIR Spectra

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Mass Spectra

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Polarity/Scan Type: Positive
Solvent: H2O
Solution Concentration: 10 mg/mL


    Stone, K. John, and Jack L. Strominger. "Mechanism of Action of Bacitracin: Complexation with Metal Ion and C55-Isoprenyl Pyrophosphate." PNAS 68.12 (1971): 3223-227. Biological Laboratories, Harvard University. Web. 21 Aug. 2012.

    Bell, Robert G. "Preparative High-Performance Liquid Chromatographic Separation and Isolation of Bacitracin Components and Their Relationship to Microbiological Activity." Journal of Chromatography 590 (1992): 163-68. Web. 21 Aug. 2012.

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