Description
Buy Bacteriostatic Water – Sterile Diluent for Peptide Reconstitution
Bacteriostatic Water (BAC Water) – 0.9% Benzyl Alcohol, Sterile Multi-Dose Vial
Bacteriostatic Water for Injection, USP is a sterile, nonpyrogenic preparation of water containing 0.9% (9 mg/mL) benzyl alcohol as a bacteriostatic preservative . It is specifically designed as a multiple-dose diluent for dissolving or diluting drugs and research peptides prior to injection . Unlike sterile water, the benzyl alcohol preservative allows for repeated withdrawals from the same vial without compromising sterility, making it the preferred choice for peptide research applications. This research-grade solvent is strictly for laboratory use and is not intended for human consumption.
Key Factual Details
| Attribute | Detail |
|---|---|
| Chemical Name | Bacteriostatic Water for Injection, USP |
| Chemical Formula | H₂O (Water for Injection) |
| Preservative | 0.9% Benzyl Alcohol (9 mg/mL) |
| Alternative Formulation | 1.1% Benzyl Alcohol (11 mg/mL) available |
| pH Range | 4.5 to 7.0 |
| Container Type | Multi-dose vial |
| Purity | Sterile, nonpyrogenic, USP Grade |
| Filtration | 0.22 µm PES membrane filtered |
| Classification | Injectable diluent / Peptide reconstitution solution |
Mechanism of Action & Research Applications
Bacteriostatic Preservation: The 0.9% benzyl alcohol content inhibits bacterial growth in the vial, allowing multiple withdrawals over time without microbial contamination . This is essential when reconstituting peptides that require repeated dosing from the same vial .
Research Applications:
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Peptide Reconstitution: Dissolving lyophilized peptides into solution for research protocols
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Drug Dilution: Preparing pharmaceutical compounds for injectable research use
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Laboratory Use: Routine solvent in peptide and biopharmaceutical research
Research Parameters
Reconstitution Protocol:
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Use aseptic technique for all withdrawals
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Inject BAC water slowly against the vial wall to avoid damaging peptides
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Gently swirl to dissolve; do not shake vigorously
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Allow 15 minutes after reconstitution for full dissolution
Storage:
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Store in a cool, dark place away from direct sunlight
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Refrigerate after opening, as with reconstituted peptides
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Discard any solution showing particulate matter or discoloration




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