Bacteriostatic Water (10ml): The Reconstitution Standard

The Onyx Biolabs Bacteriostatic Water is a sterile, non-pyrogenic preparation of water for injection containing 0.9% (9mg/mL) of Benzyl Alcohol added as a bacteriostatic preservative. It is supplied in a multi-dose plastic fliptop vial specially designed for the safe reconstitution of lyophilized research compounds.

Mechanism: Why “Bacteriostatic”? Unlike standard “Sterile Water for Injection” which is single-use only, Bacteriostatic Water allows for multiple entries into the vial. The presence of Benzyl Alcohol acts as a bacteriostatic agent, inhibiting the growth of most potentially contaminating bacteria for up to 28 days after the vial is opened.

• Preservation: The 0.9% Benzyl Alcohol solution works by disrupting the cell membrane of microorganisms, ensuring the solvent remains stable and sterile during repeated use.

• Solubility: It is the preferred solvent for dissolving peptide structures, as it maintains the correct pH balance to prevent peptide degradation (denaturing) during the reconstitution process.

Usage & Storage This product is strictly for use as a solvent for dissolving Research Peptides and drugs. Once the vial is breached (rubber stopper punctuated), the 28-day shelf-life clock begins. Store at room temperature (20-25°C) before opening, and refrigerate (2-8°C) after opening/reconstitution.

References

1. Nair B. Final report on the safety assessment of Benzyl Alcohol, Benzoic Acid, and Sodium Benzoate. International Journal of Toxicology. 2001.

2. Meyer BK, et al. Antimicrobial preservative use in parenteral products: past and present. Journal of Pharmaceutical Sciences. 2007.

3. USP. USP <51> Antimicrobial Effectiveness Testing. United States Pharmacopeia.