Other
Bacteriostatic Water Research Peptide
Bacteriostatic water (0.9% benzyl alcohol), a standardized laboratory solvent supplied as a reference reagent. For laboratory use only.
$9.99 — 10 mL vial
| Quantity | 10 mL |
| Category | Other |
| Latest batch tested | 07/15/26 |
Bacteriostatic Water in Research
Bacteriostatic water is sterile water containing 0.9% benzyl alcohol, the standard multi-use laboratory diluent for reconstituting lyophilized peptides. The benzyl alcohol suppresses bacterial growth in the vial across repeated septum punctures, which is why formulation references prefer it over plain sterile water for multi-draw research workflows.
Supplied in 10 mL vials as a laboratory reagent. Note the 3-vial minimum when ordered on its own — it ships free alongside any peptide order.
Quality & Testing
Every Bacteriostatic Water batch is verified by independent third-party HPLC and mass-spectrometry testing, with a batch-specific certificate of analysis available on the COA page.
Laboratory Handling & Storage
Lyophilized peptides are supplied as a freeze-dried powder and are most stable stored cold (2–8°C), protected from light and moisture, in the original sealed vial. Under these conditions the research literature generally reports multi-year integrity for dry peptide material.
Once reconstituted in a laboratory setting, solutions are typically stored refrigerated and used within the window appropriate to the diluent and compound; repeated freeze–thaw cycles are avoided because they can promote aggregation. See our research overview on reconstitution and lyophilization for the underlying formulation science.
Store at controlled room temperature away from light. Once the septum has been punctured, laboratory convention dates the vial and discards it after the period specified by the facility's SOP (commonly 28 days).
Frequently Asked Questions
What is bacteriostatic water used for in the laboratory?
It is the standard diluent for reconstituting lyophilized peptides in research settings — the 0.9% benzyl alcohol content suppresses microbial growth across multiple draws from the same vial.
How does it differ from sterile water for injection?
Plain sterile water contains no preservative and is single-use once opened; bacteriostatic water's benzyl alcohol allows multi-use laboratory handling. Some peptides with benzyl-alcohol sensitivity are reconstituted with other diluents — see the formulation literature.
Why is there a 3-vial minimum?
Standalone bacteriostatic water orders have a 3-vial minimum for shipping efficiency. There is no minimum when it accompanies any peptide order.
Is this product for human use?
No. This bacteriostatic water is supplied as a laboratory reagent for research use only.