Bacteriostatic Water for Injection, USP is a sterile, nonpyrogenic aqueous preparation containing 0.9% benzyl alcohol as a bacteriostatic preservative. Supplied in a convenient 10 mL multi-dose vial, it is designed for applications requiring a sterile diluent that can be accessed more than once when handled according to the applicable manufacturer instructions.

NXTSTATE sources this product through a licensed U.S. laboratory partner and provides product and lot information to support appropriate laboratory documentation and traceability.

Product Overview

Bacteriostatic Water for Injection differs from preservative-free Sterile Water for Injection primarily through the inclusion of benzyl alcohol. At a concentration of 9 mg/mL (0.9%), the preservative helps inhibit the growth of microorganisms within the vial during appropriate multi-dose use.

The product is manufactured to applicable United States Pharmacopeia (USP) requirements and is supplied as a clear, sterile solution suitable for compatible laboratory applications.

Intended Laboratory Use

In research environments, bacteriostatic water may be used as a diluent for compatible lyophilized compounds and other laboratory preparations where the applicable protocol specifies its use.

When preparing a research solution, the appropriate diluent, concentration, preparation method, and storage conditions should be determined from the documentation applicable to the specific compound. Researchers should use appropriate aseptic technique and avoid unnecessary agitation during preparation.

Important: Bacteriostatic water is not universally compatible with every compound or experimental system. Compatibility should be established before use.

Why Choose a Multi-Dose Diluent?

The inclusion of a bacteriostatic preservative distinguishes this preparation from preservative-free sterile water. This characteristic makes bacteriostatic water useful in laboratory workflows where a vial may need to be accessed on multiple occasions under controlled conditions.

Proper handling remains essential. The preservative does not eliminate the need for aseptic technique, appropriate storage, or compliance with the manufacturer’s labeled in-use requirements.

Bacteriostatic Water vs. Sterile Water

Although both products provide sterile water for compatible applications, they serve different purposes.

Bacteriostatic Water for Injection contains 0.9% benzyl alcohol and is supplied as a multi-dose preparation.

Sterile Water for Injection contains no bacteriostatic preservative and is generally supplied for single-dose applications according to its labeling.

The two should not be considered interchangeable. Researchers should select the appropriate preparation based on the requirements of the material and validated laboratory procedure.

Product Specifications

Quality & Traceability

NXTSTATE prioritizes documented sourcing and product traceability for laboratory materials. Product information and applicable lot documentation should be reviewed before use to verify identity, specifications, and storage requirements.

Researchers should retain the relevant product documentation with their laboratory records to support appropriate material tracking and experimental reproducibility.

Storage & Handling

Store the unopened vial according to the manufacturer’s labeled storage requirements and protect the container from conditions that could compromise product integrity.

Before use, inspect the vial carefully. Do not use the product if the solution is cloudy, discolored, contains visible particulate matter, or if the container or closure appears compromised.

After the vial has been entered, follow the manufacturer’s instructions regarding aseptic handling and the permitted in-use period. Appropriate laboratory PPE and contamination-control procedures should be used whenever the product is handled.

Frequently Asked Questions

What is bacteriostatic water used for?

In laboratory settings, bacteriostatic water can serve as a sterile diluent for compatible lyophilized research materials and other preparations where its use is specified by the applicable protocol.

Does bacteriostatic water contain a preservative?

Yes. It contains 0.9% benzyl alcohol (9 mg/mL), which provides bacteriostatic properties.

Is bacteriostatic water the same as sterile water?

No. The principal distinction is that bacteriostatic water contains a preservative, whereas preservative-free Sterile Water for Injection does not.

Is bacteriostatic water compatible with every peptide or compound?

No. Compatibility depends on the chemical and physical characteristics of the material being prepared. Always consult the applicable compound documentation before selecting a diluent.

Research Use Only

Bacteriostatic Water for Injection is supplied by NXTSTATE for laboratory and research applications. It is not presented as a treatment, therapy, or recommendation for human or veterinary administration.

Researchers are responsible for following applicable manufacturer instructions, laboratory protocols, institutional requirements, and local regulations governing the storage, handling, preparation, and use of laboratory materials.

For research use only. Not for unauthorized human or veterinary use.