Multi-Entry Preparation
The benzyl alcohol component inhibits bacterial replication, which is why bacteriostatic water is selected where a sealed vial is entered more than once across a protocol.
Overview
What is BAC Water?
BAC Water is sterile water containing 0.9% benzyl alcohol, a bacteriostatic preservative that inhibits microbial growth. It is supplied as a laboratory reconstitution medium for lyophilized research compounds and is listed for controlled laboratory use only.
BAC Water (bacteriostatic water) is supplied strictly as a laboratory material for in vitro and preclinical investigation. All characterization data described here is drawn from published references and laboratory analysis; nothing herein constitutes a claim of clinical effect in humans.
Investigational Scope
Documented Research Areas
The following domains summarize directions explored across published studies and laboratory models. Each reflects observations reported in rodent models, in vitro systems, or the peer-reviewed record.
Lyophilized Compound Support
Supports laboratory preparation workflows for lyophilized research compounds that call for a neutral aqueous vehicle.
Protocol-Specific Use
Selection between bacteriostatic water and an acidic vehicle depends on the compound, target concentration, and analytical method specified by the research protocol.
Controlled Lab Supply
Packaged as a research supply for qualified laboratory handling, storage, and documentation practices.
Proposed Mechanism
Mechanistic Pathway
Mechanistic steps below are hypothesized from in vitro assays and animal-model data reported in the literature. They describe biochemical interactions observed under controlled experimental conditions.
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1
Bacteriostatic Action
Benzyl alcohol at 0.9% inhibits bacterial replication rather than sterilizing, limiting microbial growth in a vial that has been opened.
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2
Aqueous Dissolution
The water component dissolves lyophilized powder, with the volume added defining the resulting working concentration.
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3
Neutral Vehicle
Near-neutral pH suits compounds that are unstable under acidic conditions, where dilute acetic acid would otherwise be the alternative.
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4
Controlled Handling
Sterile technique and protocol-defined storage help minimize contamination and preserve preparation consistency.
Technical Data
Molecular Specifications
| Amino Acid Sequence | N/A |
|---|---|
| Molecular Weight | 18.02 g/mol water; 108.14 g/mol benzyl alcohol component |
| Molecular Formula | H2O with 0.9% C6H5CH2OH |
| CAS Number | 7732-18-5 (water); 100-51-6 (benzyl alcohol) |
| Storage | Store sealed at controlled room temperature; protect from contamination |
References
Selected Literature
The following peer-reviewed references informed the research summaries on this page. Citations are provided for scientific context only.
- United States Pharmacopeia. Bacteriostatic Water for Injection. USP-NF.
- Sigma-Aldrich. Benzyl alcohol product and safety documentation.
- Thermo Fisher Scientific. Peptide solubility and handling guidelines.
- Fields GB & Noble RL. (1990). Solid phase peptide synthesis utilizing 9-fluorenylmethoxycarbonyl amino acids. International Journal of Peptide and Protein Research, 35(3), 161-214.
- Chan WC & White PD. (2000). Fmoc Solid Phase Peptide Synthesis: A Practical Approach. Oxford University Press.
Research Disclaimer
This product is intended strictly for laboratory research purposes only. It is not a drug, food, cosmetic, or dietary supplement and is not intended to diagnose, treat, cure, or prevent any disease. It is not for human or animal consumption. All information presented is derived from published scientific literature and is provided for educational reference only. By purchasing, the buyer affirms they are a qualified researcher or institution and assume full responsibility for the safe and lawful handling of this material.