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Research Compound · Bacteriostatic Water

Bacteriostatic Water —
Lab-Grade. Ready to Ship.

Sterile bacteriostatic water with 0.9% benzyl alcohol. The standard reconstitution solvent for all lyophilized research peptides. 10mL multi-dose vial. USP-grade sterility standards.

USP-Grade Sterility0.9% Benzyl Alcohol10mL Multi-Dose VialSterility VerifiedUSA Operations
$9.99
per 10mL vial
In Stock

Order Bacteriostatic Water

COA included with every order
For laboratory research use only
HPLC Verified≥98% purity confirmed per lot
COA IncludedLot-specific certificate
Mass Spec IDIdentity confirmed per batch
USA OperationsVerified. Documented.
About This Compound

What Is Bacteriostatic Water?

Bacteriostatic water is sterile water for injection preserved with 0.9% benzyl alcohol — a concentration sufficient to inhibit microbial growth and allow multiple draw-offs from a single vial without contamination risk. It is the standard reconstitution solvent for lyophilized research peptides and many other injectable research compounds.

The 0.9% benzyl alcohol preservative maintains sterility across multiple needle entries — essential for research protocols requiring multiple preparations from a single vial. It is distinct from regular sterile water (single-use only) and saline (contains sodium chloride). Most lyophilized peptide reconstitution protocols specify bacteriostatic water as the preferred solvent.

Read our Bacteriostatic Water research guide →

// compound profile
TypeSterile water for injection
Preservative0.9% Benzyl Alcohol
Volume10mL per vial
UsePeptide reconstitution
GradeUSP-grade sterility
Multi-doseYes (BAC preserved)
StorageRoom temp or 2–8°C
Quality Standard

We Verify Before We Ship.

CoreVionRX doesn’t manufacture compounds. We verify every batch rigorously before it reaches our catalog.

≥98%
Purity by HPLC
Reversed-phase HPLC separates and measures compound purity. Documented on your lot-specific COA.
MS/MS
Mass Spec Identity
Molecular weight verified by ESI mass spectrometry — confirms you’re getting exactly what you ordered.
Lot #
Lot-Specific COA
Your COA tied to your production lot. Not standard in this market. We made it standard anyway.
100%
Pre-Listing Verification
No compound ships without full documentation cleared. Non-negotiable policy.
Technical Specifications

Full Product Data

Specification Value
Type Bacteriostatic water for injection
Preservative 0.9% benzyl alcohol (w/v)
Volume 10mL per vial
Primary Use Reconstitution of lyophilized research peptides
Sterility USP <71> sterility standards
Endotoxin Controlled per USP <85> standards
Multi-dose Yes — bacteriostatic preservation allows multiple draw-offs
Storage Room temperature (15–30°C) or refrigerated (2–8°C)
Compatibility Compatible with all CoreVionRX lyophilized peptides
Preclinical Research

What Researchers Study Bacteriostatic Water For

All published research is preclinical — cell cultures and animal models.

Standard Peptide Reconstitution
Bacteriostatic water is the most widely used reconstitution solvent for lyophilized research peptides. The 0.9% benzyl alcohol concentration is sufficient to maintain sterility while remaining compatible with most peptide stability profiles.

USP General Chapter <1> Injections and Implanted Drug Products

Multi-Dose Protocol Support
Unlike single-use sterile water vials, bacteriostatic water’s preservative allows multiple needle entries from a single vial — essential for research labs reconstituting peptides for use across multiple experiments or time points.

FDA Guidance: Sterile Drug Products Produced by Aseptic Processing

Solubility & Compatibility
Bacteriostatic water maintains a neutral pH compatible with most research peptide stability profiles. It is preferred over saline for peptide reconstitution as sodium chloride can affect solubility of certain compounds at higher concentrations.

Remington: The Science and Practice of Pharmacy, 23rd Ed.

Why CoreVionRX

Documentation Is the Product.

Most vendors claim purity. We document it. Every compound ships with independent lab verification.

Independent HPLC Testing
Every batch through reversed-phase HPLC before listing. Chromatogram on your COA.
Lot-Specific COA
Your COA tied to your production lot — not a generic template.
Transparent Sourcing
We source and verify. Not a synthesis lab. That honesty builds the brand.
Stability Guaranteed
Lyophilized powder — stable at −20°C for 24+ months.
Common Questions

Straight Answers.

What is bacteriostatic water and why do I need it for peptides?

Bacteriostatic water is sterile water preserved with 0.9% benzyl alcohol. The preservative inhibits bacterial growth, allowing multiple draw-offs from a single vial — essential for research protocols. Most lyophilized peptide reconstitution protocols specify bacteriostatic water because standard sterile water vials are single-use only.
Why bacteriostatic water instead of saline or regular sterile water?

Saline (0.9% sodium chloride) can affect the solubility of some peptides at certain concentrations. Regular sterile water vials are single-use — once opened, they must be discarded. Bacteriostatic water’s benzyl alcohol preservative maintains multi-dose sterility while providing a neutral, peptide-compatible solvent.
How much bacteriostatic water do I need to reconstitute a peptide?

It depends on your target concentration. Use our peptide reconstitution calculator to determine the exact volume. For example, to make a 2mg/mL solution from a 5mg vial, you would add 2.5mL of bacteriostatic water.
Can I use bacteriostatic water for all peptides?

Bacteriostatic water is compatible with all lyophilized peptides in the CoreVionRX catalog. For compounds with specific solubility requirements (such as acetic acid for some peptides), the product’s COA or protocol notes will specify. When in doubt, bacteriostatic water at neutral pH is the default standard.
How do I store bacteriostatic water after opening?

Store at room temperature (15–30°C) or refrigerated (2–8°C) after opening. The benzyl alcohol preservative maintains sterility for up to 28 days after first use. Discard if any cloudiness or particulate matter is observed.

Ready to Order Bacteriostatic Water?

In stock. COA included. Verified. Ships with full documentation.

≥98% HPLCLot-Specific COAMass Spec VerifiedUSA Operations

For laboratory research use only. Not for human or animal consumption.


Documentation & Testing Standards

Every batch is independently tested before release. Research peptide FAQs  ·  CoreVionRX testing standards

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