Bacteriostatic water
USP-grade sterile diluent preserved with 0.9% benzyl alcohol. The standard reconstitution vehicle for lyophilised research peptides. Multi-puncture use over 28 days once entered.
Overview
Bacteriostatic Water is sterile water for injection preserved with 0.9% benzyl alcohol, supplied as a sealed multi-puncture vial. It is the standard diluent used in laboratory settings to reconstitute lyophilised peptides, and it is the accessory most often required alongside them.
Specification
- Composition — sterile water (H₂O) with 0.9% benzyl alcohol (C₇H₈O) as preservative
- Physical form — clear, colourless solution
- Grade — USP
- Sterility — sterile filtered
- Storage — controlled room temperature, 20–25 °C. Protect from light. Do not freeze.
- In-use period — the benzyl alcohol preservative permits repeated withdrawal for up to 28 days after first entry
- Sizes — 3 mL, 10 mL and 30 mL vials
Handling notes
- Compatible with lyophilised peptide compounds that are soluble in aqueous solution.
- Peptides with low aqueous solubility generally require an acidic solvent instead — see Acetic Acid 0.6%.
- Store the sealed vial away from light and do not use beyond the in-use period once entered.
| Molecular Formula | H2O + C7H8O (benzyl alcohol) |
|---|---|
| Purity | ≥99.9% (HPLC verified) |
| SKU | Bacteriostatic water |
• Peptide reconstitution: Standard diluent for lyophilized peptide research compounds.
• Multi-use applications: Preservative allows repeated vial access for research studies.
• Stability studies: Used as a standard reconstitution vehicle in peptide stability research.
• Solubility testing: Used in peptide solubility characterization studies.
Standard reconstitution: 1 mL bacteriostatic water per vial unless otherwise specified on the Certificate of Analysis. Store reconstituted solution at 2-8°C and use within 30 days. Lyophilized powder stable at -20°C for 24 months when sealed under inert atmosphere.
- Purity (HPLC)
- 99.9%
Every vial of this lot carries this lot number and a QR code that resolves to the same page. Values are lot-specific analytical results; representative specifications are on the Specifications tab.
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