Disclaimer
Products supplied by SYNA Labs Ltd are intended strictly for laboratory and scientific research purposes only. They are not medicines, are not approved for human or veterinary use, and must not be used to diagnose, treat, cure, or prevent any disease or medical condition. Products are not for human or animal consumption, cosmetic, food, or recreational use. By purchasing from SYNA Labs Ltd, customers confirm they are qualified individuals or entities purchasing solely for legitimate research purposes and agree to our Terms and Conditions and Research Use Policy.
Bacteriostatic Water is a sterile aqueous solution containing 0.9% benzyl alcohol, included specifically to inhibit microbial growth across repeated vial access. It’s a standard diluent in laboratory and formulation research, used for reconstituting and diluting research compounds under controlled conditions.
The benzyl alcohol content gives the solution bacteriostatic properties, lowering the risk of contamination across multi-use workflows where a vial is accessed more than once. In research settings, it’s commonly used to assess compound solubility, reconstitution behaviour, and short-term stability once a compound has been diluted.
Product: Bacteriostatic Water
Synonyms / Designations: Bacteriostatic Water for Injection (Research Use), Sterile Water with Benzyl Alcohol
CAS Number: 7732-18-5 (Water); 100-51-6 (Benzyl Alcohol)
Molecular Formula: H₂O with 0.9% benzyl alcohol (w/v)
Molar Mass: 18.02 g/mol (water)
Composition: Sterile water containing 0.9% benzyl alcohol as a bacteriostatic preservative
Product Classification: Sterile aqueous diluent; bacteriostatic solvent
Purity: Manufactured using USP/Ph. Eur. grade components
Appearance: Clear, colourless, sterile solution
Pack Size: 10 mL
Storage: Store in a cool, dark place; discard 30 days after first opening
Solubility: Fully miscible with water and aqueous buffer systems.
Applications in Research
- Reconstitution of peptides, proteins, and other research compounds.
- Preparation of laboratory-grade solutions for in vitro and ex vivo studies.
- Evaluation of compound stability following reconstitution.
- Formulation development and solvent compatibility assessments.
- Multi-use experimental workflows requiring bacteriostatic protection.
Specifications Summary
| Parameter | Typical Value / Range |
| Solvent Type | Bacteriostatic aqueous diluent |
| Preservative | Benzyl alcohol 0.9% (w/v) |
| Appearance | Clear, colourless sterile solution |
| Solubility | Fully miscible with water and aqueous buffers |
| Purity | USP/Ph. Eur. grade components |
| Storage | Cool, dark place |
| Pack Size | 10mL |
Handling, Reconstitution & Stability
- Use aseptic technique when accessing vial contents.
- Avoid contact between the vial contents and non-sterile surfaces.
- Reseal promptly after use to maintain sterility.
- Do not freeze.
- Discard any remaining contents 30 days after first opening.
Precautions & Notes
- Do not use if the solution becomes cloudy, discoloured, or contains visible particulates.
- Protect from excessive heat and prolonged light exposure.
- Bacteriostatic Water is intended solely for laboratory research and formulation applications. For research use only — not for human consumption, therapeutic use, diagnostic procedures, or veterinary applications.
