Description
OVERVIEWProduct overview
Bacteriostatic water is sterile water containing 0.9% benzyl alcohol as a bacteriostatic preservative, which allows a sealed vial to be entered more than once without supporting bacterial growth.
It is the standard diluent used in laboratories to reconstitute lyophilised peptide reference material, and the volume added determines the concentration of the resulting solution.
Supplied for laboratory use only. It is not a medicine and is not for human or veterinary administration.
SUPPLY IN IRELANDBacteriostatic Water Ireland — supplied to research laboratories
Research groups across Ireland buy Bacteriostatic Water from Kensington Laboratories as a lyophilised Bacteriostatic Water peptide, released only against a batch-matched certificate of analysis. Every vial of high purity Bacteriostatic Water is verified by HPLC and LC-MS before it leaves the facility, so laboratories ordering Bacteriostatic Water in Ireland receive material with documented purity and identity.
Laboratory Bacteriostatic Water is packed for controlled storage and sent by tracked delivery in 3–5 days to Dublin, Cork, Galway, Limerick and the rest of Ireland. Delivery costs €9.90 per order. Teams planning BacteriostaticWater research can review the specifications, certificate of analysis and reference list on this page before ordering.
Institutions searching for Bacteriostatic Water peptide suppliers in Ireland typically compare purity, batch documentation and delivery times. Each of those is published here: a 99% HPLC purity specification, a certificate matched to the batch code on your vial, and tracked delivery in 3–5 days.
Bacteriostatic Water is supplied strictly for laboratory research use only. It is not a medicine and is not for human or veterinary consumption.
SPECIFICATIONSProduct specifications
- Purity: Sterile, laboratory grade
- Appearance: White lyophilised powder
- Quantity: 10 ml per vial
- Peptide class: Preserved diluent for reconstituting lyophilised research compounds
- Also known as: 0.9% benzyl alcohol preserved water for laboratory use
- Solubility: Soluble in bacteriostatic or sterile water
- Storage temperature: Store at 2–8°C; long-term −20°C, protected from light
- Shelf life: 24 months lyophilised; 30 days reconstituted at 2–8°C
- Manufacturing standard: ISO 9001 facility, GMP-aligned solid-phase synthesis
- Batch information: Batch number and expiry printed on every vial label
RESEARCHResearch overview
The following summary is provided for educational and scientific context only. It describes what has been observed in published laboratory and animal studies and does not represent established clinical outcomes, medical advice or a claim of efficacy in humans.
Background
Bacteriostatic water is sterile water containing 0.9% benzyl alcohol as a bacteriostatic preservative, which allows a sealed vial to be entered more than once without supporting bacterial growth.
It is the standard diluent used in laboratories to reconstitute lyophilised peptide reference material, and the volume added determines the concentration of the resulting solution.
Supplied for laboratory use only. It is not a medicine and is not for human or veterinary administration.
Current research areas
Published investigation clusters around a small number of biological themes. Each remains experimental and none has been established as a therapeutic effect in humans.
- Reconstitution of lyophilised reference compounds
- Multi-entry vial handling
- Concentration and dilution series preparation
- Cold-chain and short-term storage of reconstituted solutions
Scientific context and proposed mechanisms
Benzyl alcohol inhibits bacterial replication in the vial, which is why bacteriostatic water is preferred over plain sterile water where a vial will be entered on more than one occasion.
Interpreting the evidence
Most published work in this area uses cell culture or rodent models with small group sizes and short observation windows. Independent replication varies considerably between compounds, and results are sensitive to species, route, dose and endpoint.
There is no regulatory-approved human protocol for this compound. Any laboratory protocol should be defined by the model under study, institutional ethical approval, appropriate controls and predefined endpoints.
References
CERTIFICATE OF ANALYSISIndependent batch testing
Every released batch is independently tested. Match the batch number on the vial to the certificate published online.
- Batch number
- KL-BACTERIOST-2408A
- Testing laboratory
- Colmaric Analyticals
- Date tested
- 21 July 2026
- Reported purity
- 99.58%
- Method
- RP-HPLC with UV detection at 214 nm, confirmed by LC-MS
The independent result for this batch is summarised above. Contact the laboratory team if you need the full report for this batch.
