Bacteriostatic Water 20ml – 5 Pack from Renew Lab Group includes five sterile 20ml multi-dose vials of pharmaceutical-grade bacteriostatic water, each preserved with 0.9% benzyl alcohol to support repeated, sterile reconstitution of lyophilized research compounds. Every batch is manufactured in our Houston, TX cleanroom and verified by third-party HPLC testing, and each order ships with a Certificate of Analysis so your lab can confirm purity and concentration before use.
✓ USP Grade ✓ HPLC Verified ✓ 0.9% Benzyl Alcohol ✓ COA Included ✓ Endotoxin <0.1 EU/mL ✓ Houston Made
Pharmaceutical-grade bacteriostatic water in 20ml sterile multi-dose vials — 5 vials per order. Preserved with 0.9% benzyl alcohol (HPLC-verified) for repeated sterile access. Manufactured in our Houston, TX cleanroom under USP Bacteriostatic Water for Injection monograph specifications. Every order ships with the batch Certificate of Analysis.
Why Researchers Choose Renew Lab Group Bacteriostatic Water
Renew Lab Group’s 20ml bacteriostatic water is built for labs that need more flexibility than a small vial allows without committing to a large-volume container. Every batch is produced in our ISO-classified Houston, TX cleanroom under procedures aligned with the USP Bacteriostatic Water for Injection monograph, then independently verified by HPLC testing for benzyl alcohol concentration and screened for endotoxin and microbial contamination prior to release. We ship a batch-specific Certificate of Analysis with every order rather than pointing you to a generic spec sheet, so your team can document exactly what’s in the vials you received. Buying five vials at once keeps a steady supply on hand for labs running ongoing reconstitution protocols.
Reconstitution Guidance for Research Use
To reconstitute research compounds with these 20ml vials, allow each vial to warm to room temperature, disinfect the rubber stopper with an alcohol swab, and let the water run down the inside wall of the vial rather than striking the lyophilized material directly, which reduces foaming and helps it go into solution evenly. Swirl rather than shake to protect fragile peptide structures. The 0.9% benzyl alcohol preservative allows an opened 20ml vial to be used for repeated draws across its usable shelf life, which is more efficient than opening a fresh vial for every reconstitution. This bacteriostatic water is intended strictly for laboratory and research use and is not evaluated or approved for human or veterinary administration.
Product Specifications
- Volume: 20ml per vial × 5 vials
- Preservative: 0.9% w/v benzyl alcohol (HPLC-verified: 0.91%)
- Endotoxin: <0.1 EU/mL (USP limit: 0.5 EU/mL)
- pH: 5.8 (specification: 4.5–7.0)
- Sterility: USP <71> — no growth detected
- Container: Multi-dose sterile vials with rubber stopper and aluminum crimp seal
- Manufacturing: ISO cleanroom, Houston, TX
- SKU: RLG-BW-20ML-5PK
- COA: Batch-specific, included with every order
What’s Included
Each order includes 5 × 20ml bacteriostatic water vials and a printed Certificate of Analysis documenting benzyl alcohol concentration, pH, endotoxin level, and sterility results for that batch.
Shipping & Storage
Orders ship same-day from our Houston, TX facility in protective packaging designed to keep all five vials upright and shielded from light and temperature extremes during transit. Unopened vials remain stable at room temperature; once opened, refrigerate at 2–8°C and use within 28 days for best results. Standard and expedited shipping options are available at checkout for research teams working against protocol timelines.
Frequently Asked Questions
What is bacteriostatic water used for?
Bacteriostatic water is used to dissolve (reconstitute) lyophilized research peptides, hormones, and other compounds into solution. The 0.9% benzyl alcohol preservative maintains vial sterility through multiple draws over up to 28 days when refrigerated.
How should I store this product?
Store unopened vials at room temperature, away from direct light. After first use, refrigerate at 2–8°C and use within 28 days. Discard if the solution appears cloudy or discolored.
Is a Certificate of Analysis included?
Yes. Every order from Renew Lab Group includes the batch-specific COA documenting benzyl alcohol concentration (HPLC), pH, endotoxin (<0.1 EU/mL), and sterility (PASS).
Is this product USP grade?
Yes. Our bacteriostatic water meets USP Bacteriostatic Water for Injection monograph specifications, including benzyl alcohol concentration, pH, endotoxin, and sterility requirements.
How many draws can I get from this 5-Pack?
Each of the five 20ml vials in this pack is a multi-dose vial preserved with 0.9% benzyl alcohol, so researchers can typically draw from each vial multiple times across its usable shelf life rather than requiring a fresh vial per use. The exact number of draws depends on your protocol’s volume per reconstitution — always follow your lab’s own procedures and discard any vial if the solution becomes cloudy or discolored.
Should I order the 5-Pack or a different pack size?
The 5-Pack is a popular choice for labs running ongoing reconstitution protocols who want a lower cost per vial than the 1-Pack or 2-Pack without committing to full bulk quantities. If your usage is very high-volume, the 10-Pack offers the best per-vial pricing. All pack sizes use the identical USP-grade 20ml formulation.
For research use only. Not for human consumption.
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