Bacteriostatic water is a formulation description, not the name of a peptide. Two containers can share that broad description while differing in preservative concentration, packaging or product documentation. This reference focuses on establishing exactly what a container is. The separate water-certificate guide explains how to interpret individual analytical results and unresolved report questions.
Read the complete ingredient description
A US MedSource label on DailyMed describes Bacteriostatic Water for Injection, USP containing 0.9% benzyl alcohol as preservative. The benzyl alcohol is a deliberate formulation ingredient, not an incidental contaminant.DailyMed — US MedSource bacteriostatic water label (opens in a new tab)
Hospira’s manufacturer label covers presentations with 0.9% or 1.1% benzyl alcohol. This is a concrete reason to read the specific presentation instead of assuming that the broad product name guarantees one universal concentration.Hospira — Bacteriostatic Water for Injection product label (opens in a new tab)
These labels describe those manufacturers’ products. They do not authenticate a Novum container or confer the same product status on a differently sourced material.
| Field | Why it matters |
|---|---|
| Complete product name | Avoids confusing a formulation with plain water |
| Declared ingredients and concentrations | Identifies the preserved solution actually described |
| Manufacturer, presentation and lot | Connects the description to a particular container |
| Document version and intended scope | Shows which product record supports the statement |
Connect the container to its own records
The supplied 10 mL report names bacteriostatic water with 0.9% benzyl alcohol and identifies lot WFI-48-G3T. That is a document-specific formulation statement; it should remain linked to that report and lot.Supplied Bacteriostatic Water 10 mL report (opens in a new tab)
A product page, container label and certificate should agree on the named material, presentation and lot relationship. If a record refers to starting water while another refers to the preserved filled product, preserve that distinction.
Do not borrow another manufacturer’s shelf life, container claim or storage information to complete a missing field. Those details concern the tested and labelled product, not merely the ingredient name.
A useful unresolved field says what is needed, such as the applicable product specification or container documentation. A guessed value may look tidy but makes the record less reliable when later evidence arrives.
A named vehicle is not a universal compatibility finding
The Hospira label notes that some drugs may be incompatible with a particular vehicle or with benzyl alcohol. Its product information therefore does not support the idea that preserved water is automatically suitable for every other material.Hospira — Bacteriostatic Water for Injection product label (opens in a new tab)
For research documentation, compatibility is a separate evidence field. Naming both ingredients is not the same as observing their behaviour together under the relevant study conditions.
Likewise, a multiple-dose container description should not be turned into an unlimited-use claim. Packaging, formulation and the evidence for an opened container are distinct parts of a product record.
Retain unresolved analytical questions beside the identity
The supplied 10 mL document reports benzyl alcohol alongside total organic carbon, but does not explain the TOC sample stage or calculation basis. It also lists analysis on 8–9 September and approval on 10 September with a sterility conclusion. The underlying test timeline needs clarification.Supplied Bacteriostatic Water 10 mL report (opens in a new tab)
These are parallel documentation questions to those already identified in the 3 mL certificate guide. They should not be hidden by a summary that simply calls the formulation verified.
Keep the supplied document unchanged and attach any subsequent clarification as a traceable record. A revised report should identify which statements changed and why, rather than silently replacing an unresolved explanation.
The resulting identity file can still be useful: it states the declared formulation, the linked lot and the limits of the available evidence. It does not need an invented peptide-purity score or an unsupported guarantee of suitability.
Sources and further detail
- DailyMed — US MedSource bacteriostatic water label (opens in a new tab)
Product description read for the stated 0.9% benzyl-alcohol formulation. Used as a named-product example, not approval or equivalence evidence for Novum.
- Hospira — Bacteriostatic Water for Injection product label (opens in a new tab)
Manufacturer description, presentations and compatibility cautions read. No handling, preparation or administration instructions reproduced.
- Supplied Bacteriostatic Water 10 mL report (opens in a new tab)
Complete supplied PDF read. Formulation identity is transcribed; TOC basis and sterility timing remain unresolved. No authentication or clinical suitability claimed.
Sources checked 19 September 2026. Worked examples are illustrative unless a supplied report is explicitly identified. This article has not undergone independent scientific peer review.