Research-Grade  Bacteriostatic Water — 10 mL
Research-Grade  Bacteriostatic Water — 10 mL
Research-Grade  Bacteriostatic Water — 10 mL
Research-Grade  Bacteriostatic Water — 10 mL
Research-Grade  Bacteriostatic Water — 10 mL
BATCH
TRACEABLE
TESTING
DOCUMENTATION
SECURE
PACKAGING
RESEARCH
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BAC SCIENCE™ | RESEARCH MATERIALS

Research-Grade Bacteriostatic Water — 10 mL

Research-Grade Bacteriostatic Water — 10 mL

Research-grade bacteriostatic water formulated with 0.9% benzyl alcohol and supported by a transparency-first approach to testing, documentation and batch traceability.

10 mL
0.9% Benzyl Alcohol
Research Use Only
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Testing TransparencyClear testing documentation so you can review the evidence.
Batch TraceabilityEvery lot is traceable to supporting documentation.
Dual COA DocumentationManufacturer COA plus independent lab COA where applicable.
Premium QualityQuality-focused materials at competitive pricing.

Product Benefits

Why BacScience Bacteriostatic Water

BacScience Bacteriostatic Water is formulated and manufactured to give researchers a dependable foundation for their work. Below is a closer look at what sets it apart and why it consistently earns the trust of labs and independent researchers alike.

Pharmaceutical-Grade Purity

Each vial is manufactured using USP-grade sterile water and a precise, consistent concentration of preservative, so purity never varies from one batch to the next. This level of control matters when your results depend on a stable, predictable base.

Dual COA on Every Batch

Each vial is manufactured using USP-grade sterile water and a precise, consistent concentration of preservative, so purity never varies from one batch to the next. This level of control matters when your results depend on a stable, predictable base.

Consistent Sterility

Each vial is manufactured using USP-grade sterile water and a precise, consistent concentration of preservative, so purity never varies from one batch to the next. This level of control matters when your results depend on a stable, predictable base.

Reliable Shelf Life

Each vial is manufactured using USP-grade sterile water and a precise, consistent concentration of preservative, so purity never varies from one batch to the next. This level of control matters when your results depend on a stable, predictable base.

Trusted by Researchers

Each vial is manufactured using USP-grade sterile water and a precise, consistent concentration of preservative, so purity never varies from one batch to the next. This level of control matters when your results depend on a stable, predictable base.

Built for Research Use

Each vial is manufactured using USP-grade sterile water and a precise, consistent concentration of preservative, so purity never varies from one batch to the next. This level of control matters when your results depend on a stable, predictable base.

Technical Details

Full Product Specifications

Below is a complete technical breakdown of BacScience Bacteriostatic Water, covering formulation, packaging, and handling requirements so you know exactly what you're working with before you order.

Formulation

Base USP Sterile Water for Injection
Preservative Benzyl Alcohol 0.9%
pH Range 4.5 - 7.0
Sterility Sterile, Non-Pyrogenic

Packaging

Base USP Sterile Water for Injection
Preservative Benzyl Alcohol 0.9%
pH Range 4.5 - 7.0
Sterility Sterile, Non-Pyrogenic

Storage & Handling

Base USP Sterile Water for Injection
Preservative Benzyl Alcohol 0.9%
pH Range 4.5 - 7.0
Sterility Sterile, Non-Pyrogenic

Quality Assurance

Base USP Sterile Water for Injection
Preservative Benzyl Alcohol 0.9%
pH Range 4.5 - 7.0
Sterility Sterile, Non-Pyrogenic

How We Test

Testing Information

Quality isn't something we claim, it's something we document. Here's exactly how every batch of BacScience Bacteriostatic Water is tested before it's approved for sale, from raw material through final release.

1

Raw Material Verification

Before production begins, every raw material batch is verified for purity and identity by an independent laboratory, confirming the starting materials meet spec before they're ever used.

2

Controlled Production

Before production begins, every raw material batch is verified for purity and identity by an independent laboratory, confirming the starting materials meet spec before they're ever used.

3

First COA: Post-Production Testing

Before production begins, every raw material batch is verified for purity and identity by an independent laboratory, confirming the starting materials meet spec before they're ever used.

4

Second COA: Independent Confirmation

Before production begins, every raw material batch is verified for purity and identity by an independent laboratory, confirming the starting materials meet spec before they're ever used.

5

Batch Release & Documentation

Before production begins, every raw material batch is verified for purity and identity by an independent laboratory, confirming the starting materials meet spec before they're ever used.

Transparency First

Understanding Our Dual COA Process

A Certificate of Analysis (COA) is a document from a laboratory confirming what's actually in a product, based on real testing rather than assumption. Most suppliers provide one. We provide two.

Here's why that distinction matters: a single COA relies on one lab's result being accurate. If there's an error in sampling, calibration, or process, nothing catches it. By requiring two independent COAs on every batch, we build in a check against exactly that kind of single point of failure, so what you receive has been confirmed twice, not once.

COA #1

Raw Material Testing

Conducted before production begins, this COA verifies the purity and identity of raw materials entering the manufacturing process.

Tests Covered
  • Identity confirmation
  • Purity assessment
  • Contaminant screening
COA #2

Final Product Testing

Conducted before production begins, this COA verifies the purity and identity of raw materials entering the manufacturing process.

Tests Covered
  • Sterility confirmation
  • pH verification
  • Preservative concentration
  • Endotoxin testing

Copies of COAs for any batch are available on request. If you'd like to review the documentation for the batch you've received, reach out and we'll provide it directly.

Our Commitment

Research Transparency

Research begins with quality, but it's sustained by transparency. We believe researchers deserve to know exactly what they're working with, how it was made, and how it was verified. That belief shapes every part of how we operate, not just our testing process.

Full Batch Traceability

Every vial can be traced back to its exact production batch, so if a question ever comes up about a specific order, we can pull the precise records for it, not just general information about the product line.

Documentation Available on Request

COAs, testing methodology, and batch records are not locked away. If you want to review the documentation behind the vial in your hand, you can request it and receive an actual answer.

Independent, Accredited Labs

We don't self-certify. Every test is performed by third-party laboratories with no financial stake in the outcome, so results reflect the product, not our interests.

Consistent Process, Every Batch

Our testing and documentation process doesn't change based on order size or customer. Every batch, large or small, goes through the same dual-COA verification before release.

Transparency isn't a marketing claim for us, it's an operating principle. If you ever have a question about a batch, a test result, or how something was made, we would rather you ask us directly than have to guess.

Sample Vial Label
Lot No. BSW-24081201
Mfg. Date Aug 12, 2026
Expiry Date Aug 12, 2028

Traceability

Batch Information

Every vial of BacScience Bacteriostatic Water is printed with a unique lot number tying it to a specific production batch and its dual COA test results. Here's how to find and use it.

1

Locate Your Lot Number

Your lot number is printed directly on the vial label, alongside the manufacture and expiry dates.

2

Request Your COA

Your lot number is printed directly on the vial label, alongside the manufacture and expiry dates.

3

Confirm Before Use

Your lot number is printed directly on the vial label, alongside the manufacture and expiry dates.

The Methodology

Our Testing Process, Parameter by Parameter

"Tested" can mean very different things depending on the supplier. Here's exactly what each test in our process checks for, and the method used to check it.

Sterility Testing
Method USP <71> Membrane Filtration

Confirms the absence of viable microorganisms in the final product. Samples are incubated across multiple growth media to detect both aerobic and anaerobic contamination.

Endotoxin Testing
Method LAL (Limulus Amebocyte Lysate) Assay

Measures bacterial endotoxin levels to confirm the product falls within acceptable, non-pyrogenic limits before release.

pH Verification
Method Calibrated Potentiometric Testing

Confirms the solution falls within the specified pH range, which affects both stability and preservative effectiveness over the product's shelf life.

Preservative Concentration
Method High-Performance Liquid Chromatography (HPLC)

Verifies the exact concentration of benzyl alcohol in the solution, confirming it matches label claim within acceptable tolerance.

Particulate Matter Inspection
Method USP <788> Visual & Light Obscuration

Screens for visible and sub-visible particulates that could compromise the clarity and safety of the solution.

Container Closure Integrity
Method Vacuum Decay Testing

Confirms the vial seal maintains sterility throughout the labeled shelf life, preventing contamination after packaging.

Shipping & Handling

Shipping Information

Every order is packaged and shipped under conditions designed to protect product integrity from our facility to your bench.

Processing Time

Orders are processed and packed within 1 business day of purchase confirmation.

1 Business Day

Cold Chain Packaging

Each order is packed with insulation and cooling media to maintain product stability in transit.

Insulated & Sealed

Delivery Window

Standard delivery arrives within 2-4 business days depending on your location.

2-4 Business Days

Tracking & Confirmation

A tracking number is emailed the moment your order ships, so you always know where it is.

Emailed Automatically

Disclaimer

All products sold by BacScience are intended strictly for laboratory research use only. They are not manufactured, sold, or intended for use as drugs, food, cosmetics, or household chemicals, and are not for human or animal consumption.

  • Not for human or veterinary use.
  • For laboratory and research purposes only.
  • Must be handled by qualified personnel in a controlled setting.

By purchasing, you confirm you are a qualified professional or researcher and accept full responsibility for the legal and appropriate use of this product.

Got Questions?

Frequently Asked Questions

Everything you need to know about peptide testing, certification, and our platform.

Bacteriostatic water is sterile water containing a preservative that helps inhibit the growth of potentially contaminating bacteria. BacScience Bacteriostatic Water is formulated with 0.9% benzyl alcohol and is produced for laboratory and research applications.
Simply browse our products, select the item you’re interested in, add it to your cart, and proceed to checkout. Follow the instructions to complete your order securely.
BacScience maintains a growing Research Library, Testing & Transparency Center, and research Calculator designed to provide researchers with educational resources on bacteriostatic water, laboratory materials, testing, batch documentation, calculations, storage, and related research topics.
Consistency helps researchers reduce unnecessary variables between experiments. Using materials produced to defined specifications and supported by batch documentation can improve reproducibility and make it easier to identify whether unexpected results originate from experimental conditions or material variability.
Important considerations include sterility, preservative concentration, manufacturing quality, batch consistency, traceability, storage requirements, and independent analytical documentation. Researchers should look beyond price alone and determine whether the supplier provides verifiable information about the material being purchased.
BacScience lists an unopened shelf life of 24 months when the product is stored according to the specified storage conditions. Always refer to the product packaging and lot-specific documentation for applicable expiration information.
According to BacScience product specifications, unopened bacteriostatic water should be stored at room temperature and protected from light. Always follow the storage information provided with the specific product and lot documentation.
Yes. BacScience uses independent laboratory testing as part of its quality and transparency program. Batch documentation and available laboratory reports can be reviewed through the site's Testing & Transparency resources.
Dual COA verification means BacScience uses multiple stages of analytical verification rather than relying on a single certificate. The site's testing program includes raw-material testing as well as final-product verification, providing an additional layer of quality documentation and traceability.
Yes. BacScience emphasizes a dual-COA verification process. Testing documentation is provided to give researchers greater visibility into product quality, specifications, and batch verification rather than relying solely on manufacturer claims.
Yes. BacScience lists its bacteriostatic water as sterile and non-pyrogenic and manufactures it under defined quality-control standards for research applications.
The primary difference is the preservative. Bacteriostatic water contains benzyl alcohol, while standard sterile water generally does not. The preservative helps inhibit bacterial growth after the vial has been accessed, making bacteriostatic water distinct from preservative-free sterile water.
BacScience Bacteriostatic Water contains 0.9% benzyl alcohol as its bacteriostatic preservative. The remainder of the formulation is sterile water.