Bacteriostatic Water

Bacteriostatic Water for Research is a sterile, pharmaceutical-grade water formulation designed as a solvent or diluent for laboratory applications. Complying with USP standards, it contains benzyl alcohol as a bacteriostatic preservative, allowing for repeated aseptic withdrawals without contamination. Unlike standard sterile water, this formulation retains sterility through multiple uses, making it ideal for frequent laboratory protocols. Supplied in semi-rigid polyolefin vials, it ensures chemical compatibility and prevents degradation, offering a reliable option for reconstituting or diluting compatible compounds in research settings.

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Bacteriostatic Water for Research is a pharmaceutical-grade sterile water formulation specifically engineered for use as a solvent or diluent in multi-use laboratory applications. This preparation meets United States Pharmacopeia (USP) standards for non-pyrogenic sterility and is formulated with benzyl alcohol as the bacteriostatic preservative agent to permit repeated aseptic withdrawals from the vial without microbial contamination. Benzyl alcohol, a phenolic compound, functions as a broad-spectrum bacteriostatic and fungistatic preservative at the specified concentration, preventing the growth of vegetative bacteria and fungi while maintaining solution sterility over extended periods. The formulation does not contain therapeutic agents and is designed exclusively for reconstituting, diluting, or dissolving compatible compounds prior to research use. Unlike standard sterile water for research which contains no preservative and must be used immediately after opening, bacteriostatic water maintains sterility through multiple punctures, making it ideal for laboratory applications requiring frequent use or multi-application protocols. The product is supplied in semi-rigid polyolefin vials fabricated from medical-grade copolymer plastic, eliminating the need for vapor barrier protection while maintaining chemical compatibility and preventing solution degradation.

Chemical Structure and Identification

  • Molecular Formula: C₇H₈O
  • Molecular Weight: 108.14 g/mol
  • CAS Number: 100-51-6

Research Applications

  • Compound Reconstitution: Solvent for dissolving lyophilized peptides, proteins, and research compounds [1]
  • Research Formulation: Diluent for preparing multi-use research preparations in laboratory settings [2]
  • Peptide and Protein Suspension: Reconstitution medium for freeze-dried biological molecules in cell culture [1]
  • Multi-Use Stability: Bacteriostatic properties enabling repeated aseptic withdrawals over extended periods [2]
  • Laboratory Preparation: Vehicle for preparing research-grade solutions in controlled environments [3]
  • Preservation of Sterility: Benzyl alcohol antimicrobial activity preventing contamination in bench research [1]

Reference Citations

  1. Bacteriostatic Water for Research – Pfizer Medical specifications | https://www.pfizermedical.com/bacteriostatic-water/description
  2. USP Monograph – Bacteriostatic Water standards | https://dailymed.nlm.nih.gov/dailymed/lookup.cfm?setid=87d6e9dc-fe3b-4593-ac9a-d7493d1959c7
  3. FDA approved Bacteriostatic Water labeling | https://dailymed.nlm.nih.gov/dailymed/drugInfo.cfm?setid=69485218-9343-952d-e053-2a91aa0ad4e8
  4. Hospira Bacteriostatic Water – multi-use vial pharmaceutical standard | https://www.farrislabs.com/products/bacteriostatic-water

Important Regulatory Notice

These products are for research use only and are not intended for human consumption, therapeutic use, or diagnostic purposes. All compounds described herein have not been approved by the FDA for human use. These products are strictly intended for in vitro laboratory research and analytical purposes when conducted by qualified research professionals in licensed facilities. Users are responsible for ensuring compliance with all applicable laws regarding purchase and use of these materials.

Important Regulatory Notice

These products are for research use only and are not intended for human consumption, therapeutic use, or diagnostic purposes. All compounds described herein have not been approved by the FDA for human use. These products are strictly intended for in vitro laboratory research and analytical purposes when conducted by qualified research professionals in licensed facilities. Users are responsible for ensuring compliance with all applicable laws regarding purchase and use of these materials.