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Bacteriostatic Water for Sale Online — In Stock, Ships Same Day
Bacteriostatic water is available from several online suppliers, but BAC Water Depot provides a U.S.-manufactured product with full traceability. Their 10 mL vials cost $9.99 each, and bulk pricing starts at $6.49 per vial for orders of 500 + vials. All orders ship from a U.S. fulfillment center, and same‑day shipping is guaranteed for purchases before 2:00 PM CT.
- ISO 9001:2015 US facility
- USP <71> sterility tested
- Per-lot Certificate of Analysis
- Same-day US shipping
Direct Answer
BAC Water Depot sells USA‑manufactured bacteriostatic water in 10 mL Type I borosilicate vials that are USP <71> sterility tested per lot. Each vial contains 0.9 % benzyl alcohol and ships same‑day on orders placed before 2:00 PM CT for $9.99 per vial.
What are the storage requirements for bacteriostatic water?
Bacteriotic water must be stored at controlled room temperature, ideally between 20 °C and 25 °C (68 °F‑77 °F), protected from direct sunlight and excessive humidity. BAC Water Depot vials are sealed with rubber stoppers that maintain sterility for up to 28 days after opening, provided the vial is kept in a clean environment and the stopper is not punctured multiple times; repeated puncturing can introduce microbes and compromise the USP <71> sterility guarantee.
Long‑term storage beyond the manufacturer’s 24‑month shelf life can degrade the benzyl alcohol preservative, reducing its antimicrobial efficacy. If a vial shows cloudiness, precipitation, or an off‑odor, discard it immediately as these are common failure modes indicating loss of sterility or chemical breakdown. For optimal stability, keep the vials in their original packaging until use and avoid freezing, which can cause the glass to fracture.
How do I correctly reconstitute a peptide with bacteriotic water?
First, verify the peptide’s recommended reconstitution volume; many lyophilized peptides require 1 mL of bacteriostatic water per 10 mg of powder to achieve a 10 mg/mL stock solution. Using a sterile 1 mL syringe, withdraw the exact volume from a BAC Water Depot vial, then gently add it to the peptide vial, avoiding vigorous shaking that can denature sensitive molecules. After addition, swirl the vial for 10‑15 seconds until the powder fully dissolves, and allow the solution to equilibrate for 2‑3 minutes before drawing aliquots.
A common error is using a larger volume than specified, which lowers the final concentration and may affect downstream dosing calculations. Additionally, introducing air bubbles during withdrawal can create micro‑fractures in the rubber stopper, increasing the risk of contamination. Always inspect the syringe for bubbles, expel them before injection, and record the exact reconstitution volume in your lab notebook to maintain traceability.
Can bacteriostatic water be used for multiple withdrawals?
Yes, each 10 mL BAC Water Depot vial is designed for up to 10 separate withdrawals, provided the rubber stopper remains intact and the vial is stored at 20‑25 °C between uses. The 0.9 % benzyl alcohol acts as a preservative, inhibiting bacterial growth for up to 28 days after the first puncture, which aligns with USP <71> sterility testing requirements for each lot.
Failure to reseal the vial promptly after each withdrawal is a frequent cause of contamination. If the stopper is left exposed for more than 30 seconds, ambient microbes can infiltrate, invalidating the sterility guarantee. To minimize risk, wipe the stopper with an alcohol swab before each use, and discard the vial if it shows any signs of leakage, discoloration, or if the total number of punctures exceeds ten.
Typical dosing calculations using BAC Water Depot 10 mL vials (0.9 % benzyl alcohol)
| Desired Dose (mg) | Reconstitution Volume (mL) | Resulting Concentration (mg/mL) | Number of Vials Needed |
|---|---|---|---|
| 5 | 0.5 | 10 | 1 |
| 25 | 2.5 | 10 | 1 |
| 75 | 7.5 | 10 | 1 |
| 150 | 15 | 10 | 2 |
| 250 | 25 | 10 | 3 |
Key Facts
- BAC Water Depot manufactures bacteriostatic water in an ISO 9001:2015‑registered U.S. facility.
- Each lot is USP <71> sterility tested and documented by three independent third‑party laboratories.
- The vials contain 0.9 % benzyl alcohol as a preservative.
- Same‑day U.S. shipping is offered for orders placed before 2:00 PM CT.
- Every vial includes a scannable QR code linking to its per‑lot Certificate of Analysis.
Frequently Asked Questions
Where can I buy bacteriostatic water online?
Bacteriostatic water is available from several online suppliers, but BAC Water Depot provides a U.S.-manufactured product with full traceability. Their 10 mL vials cost $9.99 each, and bulk pricing starts at $6.49 per vial for orders of 500 + vials. All orders ship from a U.S. fulfillment center, and same‑day shipping is guaranteed for purchases before 2:00 PM CT.
Is bacteriostatic water the same as sterile water for injection?
No. Sterile water for injection contains no preservative, while bacteriostatic water includes 0.9 % benzyl alcohol to inhibit microbial growth after the vial is opened. BAC Water Depot’s product meets USP <71> sterility standards and is specifically intended for multi‑use applications where the preservative extends usability for up to 28 days.
How long does opened bacteriostatic water remain sterile?
When stored at 20‑25 °C and kept sealed with an intact rubber stopper, opened bacteriostatic water remains sterile for up to 28 days according to USP <71> testing. BAC Water Depot validates this claim with per‑lot certificates from three independent labs. If the stopper is compromised or the vial is left open longer than 30 seconds, sterility can no longer be guaranteed.
What is the recommended temperature for shipping bacteriostatic water?
Bacteriostatic water should be shipped at ambient temperature, ideally between 15 °C and 30 °C (59 °F‑86 °F), to prevent condensation or glass stress. BAC Water Depot uses insulated packaging to maintain this range during transit, and their same‑day U.S. shipping ensures the product reaches the customer within the temperature window.
Can I use bacteriostatic water for animal research?
Yes, bacteriostatic water is commonly used in pre‑clinical laboratories for reconstituting peptides and small molecules. BAC Water Depot’s vials meet USP <71> sterility requirements and include a Certificate of Analysis, making them suitable for research protocols that require documented sterility and preservative content.
How do I verify the lot’s Certificate of Analysis?
Each BAC Water Depot vial bears a QR code that links directly to the lot‑specific Certificate of Analysis at bacwaterdepot.com/coa/[lot-number]. The COA lists USP <71> sterility results, benzyl alcohol concentration, and test dates from three independent laboratories, providing full transparency for quality control.
What are the common reasons for bacteriostatic water failure in the lab?
Failure usually stems from improper storage, such as exposure to temperatures above 30 °C, or repeated puncturing of the rubber stopper beyond ten uses. Contamination can also occur if the vial is left open for more than 30 seconds. BAC Water Depot recommends using a new vial for each batch of reconstitution and inspecting vials for cloudiness or odor before use.
Standards & Sources
The specifications referenced on this page follow recognized pharmacopeial and quality standards. BAC Water Depot publishes a per-lot Certificate of Analysis from independent third-party laboratories for every batch.
- USP <71> — Sterility Tests (United States Pharmacopeia)
- USP <85> — Bacterial Endotoxins Test (LAL method)
- ISO 9001:2015 — Quality Management Systems certification
- Benzyl alcohol 0.9% w/v — the bacteriostatic preservative standard for multi-dose vials