Peptide reconstitution
Reconstitution of lyophilized research peptides for in-vitro stability and binding studies. The benzyl alcohol preservative supports multi-draw use across a 28-day window.
RW-BAC-30-1
Bacteriostatic Water 30 mL
Multi-dose 0.9% benzyl alcohol solvent for the in-vitro reconstitution of lyophilized research peptides and proteins. Type I borosilicate, sealed flip-top, third-party tested per lot.
$17.99
$17.99 / vial · CofA included
Pack size
USP <1231>
CofA per lot
Sterile · non-pyrogenic
USA-made
Specifications
CompositionSterile water with 0.9% benzyl alcohol (NF) preservative
pH4.5 – 7.0
Endotoxin< 0.5 EU/mL (LAL kinetic chromogenic)
SterilityPer USP <71>, non-pyrogenic per USP <85>
ContainerType I borosilicate glass, rubber stopper, aluminum crimp, tamper-evident flip-top
Shelf life24 months sealed · 28 days in-use after first puncture
Storage15 – 25 °C, protect from light
Lot trackingLot number printed on vial; CofA accessible at /lab-results/
Applications
Where this SKU is used in research workflows.
Antibody & protein resuspension
Resuspension of lyophilized antibodies and recombinant proteins for in-vitro assays where benzyl alcohol does not interfere with the analyte.
Multi-draw research workflows
Suited to research projects that require repeated draws from a stock vial across days or weeks; the bacteriostatic agent maintains stability after the first puncture.
Dilution of stock solutions
Serial dilution of lyophilized research compounds prior to in-vitro experiments. Pair with USP-grade saline for isotonic vehicle controls.
Research use only. This product is not for human or veterinary consumption, clinical use, diagnostic procedures, or therapeutic purposes. By purchasing, you affirm you are a qualified researcher or laboratory professional aged 21 or older.
Common questions
About this product.
How is bacteriostatic water different from sterile water for injection?
Bacteriostatic Water contains 0.9% benzyl alcohol, which inhibits microbial growth and supports multi-draw use over a 28-day window. Sterile Water for Injection is preservative-free and is intended for single-dose use, particularly with compounds that are incompatible with benzyl alcohol.
How long is it usable after the first puncture?
Per USP guidance, bacteriostatic water carries a 28-day in-use stability limit after the first puncture. Best practice is to mark the vial with the date and time of first draw and discard at day 28 regardless of remaining volume.
Where is it manufactured?
This SKU is manufactured in an FDA-registered, ISO 9001-certified facility located in the United States. Each lot is third-party tested for sterility, identity, pH, and endotoxin before release. Retention samples are kept at our facility.
How do I download the Certificate of Analysis?
Visit our Lab Results portal and enter the lot number printed on the vial. You'll receive the full CofA — including assay results, manufacturing date, and retention sample location — as a downloadable PDF.