Bacteriostatic Water — mechanism literature, storage, and side-by-side references

Sterile water with 0.9% benzyl alcohol for reconstituting lyophilized research peptides. Multi-dose 30 mL vial pairs with every lyophilized SKU. Research use only. This guide covers identity, published research context, procurement checks, and storage — RUO only, no clinical claims.

What Bacteriostatic Water is in published research

Lyophilized research peptides ship as a dry powder and must be reconstituted into solution before use in an assay. Bacteriostatic water is sterile water containing 0.9% benzyl alcohol, a preservative that suppresses microbial growth across repeated stopper entries — which is why it is the standard diluent for multi-dose research vials. The benzyl alcohol allows a reconstituted vial to be drawn from over several days of bench work rather than a single use.

The volume of bacteriostatic water you add sets the working concentration of your reconstituted peptide. As a worked example, adding 2 mL of diluent to a 5 mg vial yields 2,500 mcg/mL; adding 1 mL yields 5,000 mcg/mL. Use the reconstitution calculator linked from every product page to convert a vial size and target concentration into an exact diluent volume, then add it slowly down the inside wall of the vial and swirl gently rather than shaking.

Hold reconstituted, preserved vials at 2-8 °C protected from light and use within the working window your protocol specifies. Bacteriostatic water itself is stored at room temperature away from light until opened. Keep one 30 mL vial on the bench for every few lyophilized SKUs — a single 30 mL fill reconstitutes many standard peptide vials.

Each lot ships with a fill record and a research-use-only disclosure. As a reconstitution supply rather than a peptide, bacteriostatic water is provided for laboratory handling of the research reagents in this catalog.

The material class "Reconstitution supply (research)" helps procurement teams group Bacteriostatic Water with related reference peptides during comparative studies.

Sequence and identity

Bacteriostatic Water identity on the catalog: Composition: Water for injection with 0.9% (w/v) benzyl alcohol; Fill volume: 30 mL multi-dose vial; Use: Reconstitution diluent for lyophilized research peptides; Appearance: Clear, colorless solution; Closure: Butyl stopper, aluminum overseal; Storage: Room temperature, protect from light; Compatibility: Pairs with every lyophilized peptide in the catalog. Copy these into receiving and LIMS before reconstitution.

Mechanisms studied in published research

Mechanism-focused research on Bacteriostatic Water is typically conducted in cell lines or biochemical preparations that express the relevant receptor or binding protein for its class.

Design controls that include scrambled-sequence or orthogonal-receptor negative controls when your protocol evaluates Bacteriostatic Water pharmacology in vitro.

Report effect sizes with lot number and CoA reference so results can be reproduced if the same Bacteriostatic Water SKU is reordered later.

Avoid extrapolating in vitro binding or signaling readouts to whole-organism outcomes; RUO materials are not qualified for clinical investigation.

Procurement and identity verification

Request the lot-specific CoA for Bacteriostatic Water at receipt. Verify SKU, variant size if applicable, and identity mass before the lot enters general storage.

Compare HPLC purity to your internal minimum for the peptide family. File chromatogram excerpts when your QMS requires raw data.

Enter net peptide content from the CoA into inventory before calculating molarity for Bacteriostatic Water working stocks.

Attach purchase order, packing list, and CoA in one audit folder per lot.

Storage and reconstitution

Store lyophilized Bacteriostatic Water sealed at -20 °C protected from light unless the CoA states otherwise.

Reconstitute with bacteriostatic water or a buffer validated for your assay pH. Aliquot to limit freeze-thaw.

For oxidation-sensitive sequences in Bacteriostatic Water, minimize open-vial time at room temperature during weighing.

See our lyophilized storage guide for institution-scale SOP examples and aliquot labeling conventions.

Comparative reference points

Researchers comparing Bacteriostatic Water with adjacent catalog references often evaluate the following SKUs in parallel plates:

Use matched reconstitution buffers and stock concentrations when running comparative binding or signaling assays.