Bacteriostatic Water (BAC Water)
Bacteriostatic water is sterile water containing 0.9% benzyl alcohol as a bacteriostatic preservative. This formulation inhibits microbial growth, allowing for multiple entries into the same vial while maintaining sterility over the labeled use period. Bacteriostatic water has been the standard reconstitution solvent for lyophilized peptides and other research compounds in laboratory settings for decades.
Applications
Peptide Reconstitution: Bacteriostatic water is the preferred solvent for reconstituting lyophilized peptides in research settings. The benzyl alcohol preservative inhibits bacterial contamination during repeated withdrawals, extending the usable life of reconstituted compounds compared to sterile water for injection.
Multi-Use Compatibility: Unlike single-use sterile water, bacteriostatic water is designed for multiple-entry protocols. The 0.9% benzyl alcohol concentration provides effective bacteriostatic activity without interfering with most peptide stability or biological activity in standard research applications.
Storage Stability: Unopened bacteriostatic water vials maintain sterility through the labeled expiration date. Once punctured, vials should be used within 28 days when stored properly, as the preservative maintains bacteriostatic (not bactericidal) conditions.
Laboratory Standard: Bacteriostatic water is widely referenced in published peptide research protocols and is compatible with the reconstitution requirements of all lyophilized peptide products offered by Erosyn Labs.
Technical Specifications
Composition: Sterile Water for Injection, USP with 0.9% Benzyl Alcohol, NF
Volume: 10 mL per vial
pH: 4.5–7.0
Appearance: Clear, colorless liquid
Storage: Store at 20–25°C (68–77°F). Do not freeze. Protect from light.
Quality
Manufactured in the USA in compliance with USP standards. Each lot undergoes sterility and endotoxin testing.
For research use only. Not for human consumption.
