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Bacteriostatic Water

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Sterile bacteriostatic water formulated for peptide reconstitution, dilution, and laboratory research preparation applications.

Price range: $10.00 through $15.00

99%+ Purity Tests

Ships from USA

USA Lab Tested

View Lab Test (COA)

How Bacteriostatic Water Works

Bacteriostatic Water for Injection is a highly purified, sterile, non-pyrogenic preparation of distilled water containing a precise concentration of 0.9% (9 mg/mL) benzyl alcohol added as a bacteriostatic preservative. When you buy bacteriostatic water from us, you receive the primary standard solvent for the reconstitution of lyophilized peptides, proteins, and small molecule compounds in laboratory and clinical research environments.

The integrated benzyl alcohol acts by disrupting bacterial cell membranes and inhibiting protein synthesis, effectively halting the replication and growth of most common microbial contaminants. Unlike standard sterile water, which must be discarded immediately after a single opening, the bacteriostatic profile allows for repeated aseptic syringe withdrawals from a single multi-dose vial over an extended testing window.

Chemical Properties

Property Details
Product Name Bacteriostatic Water
Compound Type Sterile Reconstitution Diluent / Preserved Solvent
Core Components High-Purity Water for Injection / Benzyl Alcohol 
CAS Number 7732-18-5 (Water) / 100-51-6 (Benzyl Alcohol Preservative)
Molecular Weight 18.02 g/mol (Water) / 108.14 g/mol (Benzyl Alcohol)
Purity Standard USP Pharmaceutical Grade / Non-Pyrogenic Verified
Appearance Clear, Colorless, Completely Transparent Liquid
pH Range 5.7 (Buffered between 4.5–7.0)
Storage (Unopened) Store at 20–25°C (Controlled Room Temperature away from sunlight)
Storage (Opened/Vial) Store at 2–8°C (Refrigerated; must use within 28 Days)
Intended Use Laboratory Research Applications Only

Additional information

Volume

10ml, 3ml

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  • Important Research Notice
Not for human consumption. All products sold by Peptides.US are intended strictly for laboratory and research use only. These products are NOT intended for human or animal consumption. By purchasing from Peptides.US, you confirm that you are at least 21 years of age and that the products will be used solely for legitimate research purposes. These statements have not been evaluated by the Food and Drug Administration. These products are not intended to diagnose, treat, cure, or prevent any disease.

Common questions

Find quick answers to the most common questions about our research peptides and product quality.

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Research peptides are synthetic compounds commonly used in laboratory and scientific studies to explore biological processes, cellular activity, and protein interactions.

No. All products sold on this website are intended strictly for laboratory and research purposes only and are not approved for human consumption or medical use.

Our peptides are manufactured to meet high research-grade standards and typically test at 99%+ purity through third-party laboratory analysis.

Yes. COAs are available for most products and provide transparency regarding purity, testing, and batch information.
Peptides should be stored in a cool, dry environment away from direct sunlight. After reconstitution, refrigeration is recommended to maintain stability.
Better Peptide focuses on high-purity research compounds, transparent testing standards, fast U.S. shipping, and reliable customer support for research professionals.
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