Bacteriostatic Water For Sale Near Me

What are the stability and storage requirements for bacteriostatic water?

Bacteriostatic water remains stable for up to 28 days after opening when stored at 2 °C–8 °C (36 °F–46 °F) in a sealed container. Exposure to temperatures above 25 °C accelerates benzyl alcohol degradation, potentially reducing antimicrobial efficacy; manufacturers recommend discarding any vial that has been left at room temperature for more than 24 hours. For long‑term storage of unopened vials, keep them in a dry, dark place at 15 °C–30 °C (59 °F–86 °F) and avoid direct sunlight, which can cause polymer leaching from Type I borosilicate glass.

When thawing frozen bacteriostatic water, use a water bath set to 30 °C–35 °C (86 °F–95 °F) and gently swirl; rapid temperature shifts can cause micro‑cracks in the vial wall, leading to leaks. A common failure mode is precipitation of benzyl alcohol if the solution is chilled below 0 °C, creating visible particles that may clog syringes. Inspect each vial for cloudiness or particulate matter before use; any discoloration indicates possible contamination or degradation, and the vial should be discarded.

How is USP <71> sterility testing performed on each lot?

USP <71> requires a membrane filtration method where 10 mL of the product is filtered through a 0.45 µm membrane, then incubated in both aerobic (35 °C) and anaerobic (30 °C) media for 14 days. BAC Water Depot submits each lot to three independent third‑party laboratories, each of which repeats the full filtration‑incubation sequence to verify the absence of microbial growth. The per‑lot Certificate of Analysis lists the incubation temperatures, media used (Tryptic Soy Broth for aerobic, Fluid Thioglycollate Medium for anaerobic), and the final result of “No growth observed.”

A failure in USP <71> testing typically arises from compromised aseptic technique during bottling, leading to detectable colony‑forming units. If any laboratory reports growth, the entire lot is quarantined and destroyed, and a new production batch is initiated. The rigorous triple‑lab approach reduces false‑negative risk to less than 0.1 % per lot, ensuring that every vial shipped meets the sterility standard required for research‑grade injectable solutions.

Can bacteriostatic water be used for reconstituting lyophilized peptides?

Yes, bacteriostatic water is commonly used to reconstitute lyophilized peptides because the 0.9 % benzyl alcohol provides antimicrobial protection without significantly altering peptide activity. The recommended reconstitution ratio is 1 mL of water per 10 mg of peptide, but the exact volume should follow the manufacturer’s instructions to avoid oversaturation, which can cause peptide aggregation. After adding the water, gently swirl for 30 seconds; vigorous shaking can introduce air bubbles that promote oxidation of sensitive amino acids such as methionine.

A frequent issue is incomplete dissolution when the peptide is hygroscopic; in such cases, allow the vial to sit at room temperature for 5–10 minutes, then repeat the gentle swirl. If visible particles persist, filter the solution through a 0.22 µm syringe filter to remove undissolved fragments. Always verify the final concentration with a calibrated analytical balance, as slight volume deviations can affect downstream dosing calculations.

Typical Storage Conditions and Shelf‑Life for Bacteriostatic Water (BAC Water Depot)

Key Facts

1. BAC Water Depot manufactures bacteriostatic water in a U.S. ISO 9001:2015‑registered facility.
2. Each vial contains 0.9 % benzyl alcohol as a preservative.
3. USP <71> sterility testing is performed on every production lot.
4. Per‑lot Certificates of Analysis are issued by three independent third‑party laboratories.
5. Orders placed before 2:00 PM CT ship the same day from a U.S. fulfillment center.