Sourcing Guide

Bac Water Amino Club

BAC Water Depot sells research‑use‑only bacteriostatic water directly from its online store. The website lists single vials at $9.99 and bulk pricing that drops to $6.49 per vial for orders of 500 or more. All purchases are shipped from a Dallas, TX fulfillment center, and the site provides a QR code on each vial that links to the lot’s Certificate of Analysis.

ISO 9001:2015 US facility
USP <71> sterility tested
Per-lot Certificate of Analysis
Same-day US shipping

Direct Answer

BAC Water Depot sells research‑use‑only bacteriostatic water in 10 mL Type I borosilicate vials containing 0.9 % benzyl alcohol, made in a USA ISO 9001:2015‑registered facility. Each lot is USP <71> sterility‑tested, USP <85> endotoxin‑tested (≤ 0.25 EU/mL), and priced at $9.99 per vial (bulk $6.49 /vial).

What are the USP test results for BAC Water Depot bacteriostatic water?

Each lot of BAC Water Depot bacteriostatic water undergoes USP <71> sterility testing using a 14‑day membrane filtration method; no microbial growth is observed, confirming sterility. In addition, USP <85> bacterial endotoxin testing by LAL shows endotoxin levels at or below 0.25 EU/mL, meeting the strict limit for research reagents. These results are documented on the per‑lot Certificate of Analysis, accessible via the QR code on each vial, ensuring traceability for every purchase.

Beyond sterility and endotoxin, the product is evaluated for bacteriostatic effectiveness under USP <51> (Category 1B), confirming that the 0.9 % benzyl alcohol maintains antimicrobial activity for the validated 28‑day post‑puncture period. A validated PCR assay detects any residual microbial DNA, and all results must be negative; a failure in this assay would reject the lot. Subvisible particulate analysis (USP <788>) and container integrity (USP <1207>) are also performed, and any deviation leads to lot quarantine.

How is the benzyl alcohol concentration verified in BAC Water?

BAC Water Depot verifies the benzyl alcohol content of each vial using HPLC‑UV, targeting a net concentration of 0.90 % ± 5 %. The method quantifies both the active ingredient and any impurities, and the result is recorded on the Certificate of Analysis. If the measured concentration falls outside the specification, the batch is rejected and a new production run is initiated, preventing out‑of‑spec product from reaching researchers.

The HPLC‑UV assay also confirms the identity of benzyl alcohol by matching retention time to a certified reference standard. This dual verification guards against mislabeling or cross‑contamination with other solvents. A common failure mode is a drift in detector sensitivity, which can artificially lower the reported percentage; routine calibration of the HPLC system mitigates this risk and ensures consistent compliance across all lots.

What shipping options and timelines are available for BAC Water?

Orders placed before 2:00 PM CT Monday–Friday ship the same business day from the Dallas, TX fulfillment center using USPS Priority Mail, which the carrier estimates will deliver in 1–3 business days for most U.S. addresses. Standard shipping costs $15.99 flat, but orders over $250 (up to 100 vials) qualify for free standard shipping. For larger case orders exceeding 100 vials, a flat rate of $34.99 applies.

If faster delivery is required, the Express option uses USPS Priority Mail Express at $45.99 or $1.50 per vial, whichever is higher, and typically arrives the next business day for most U.S. locations, with a two‑day guarantee for more remote addresses. No cold‑chain or refrigerated shipping is used; all vials are packed at controlled room temperature (15–30 °C) and sealed with tamper‑evident closures to maintain integrity during transit.

Key Facts

BAC Water Depot bacteriostatic water is packaged in 10 mL Type I borosilicate multi‑dose vials.
Each vial contains 0.9 % ± 5 % benzyl alcohol as the bacteriostatic agent.
All lots are tested for sterility according to USP <71> and endotoxin levels per USP <85>.
The product is manufactured in a USA ISO 9001:2015‑registered facility.
Unopened vials store at controlled room temperature 15–30 °C; once punctured, refrigerate 2–8 °C and discard after 28 days.

Frequently Asked Questions

Where can I buy BAC Water bacteriostatic water?

How fast can I receive BAC Water after ordering?

If you place your order before 2:00 PM CT Monday through Friday, BAC Water Depot ships the same business day via USPS Priority Mail, which typically arrives in 1–3 business days across the United States. For urgent needs, the Express option is available at $45.99 (or $1.50 per vial, whichever is higher) and usually delivers the next business day for most U.S. addresses.

Is the benzyl alcohol concentration consistent across lots?

Yes. Each lot is analyzed by HPLC‑UV to confirm a benzyl alcohol concentration of 0.90 % ± 5 %. The result is recorded on the per‑lot Certificate of Analysis, which can be accessed by scanning the QR code on the vial label. Any lot that falls outside this specification is rejected and does not reach customers.

What USP tests does BAC Water undergo?

Every lot of BAC Water is tested for sterility using USP <71> membrane filtration, endotoxin levels using USP <85> LAL (≤ 0.25 EU/mL), and bacteriostatic effectiveness under USP <51> Category 1B. Additional assays include PCR for microbial DNA, subvisible particulate analysis USP <788>, and container integrity USP <1207>. All results are posted on the lot’s Certificate of Analysis.

Can I store unopened BAC Water at room temperature?

Unopened vials should be stored at controlled room temperature between 15 °C and 30 °C, away from direct sunlight, with no refrigeration required. The product does not require cold‑chain shipping, and the expiration date is printed on both the label and the Certificate of Analysis.

What should I do after puncturing a vial of BAC Water?

Once a vial is punctured, refrigerate it at 2–8 °C and use it within 28 days; any remaining solution should be discarded after that period. This practice maintains the bacteriostatic efficacy of the 0.9 % benzyl alcohol and complies with the USP <51> Category 1B requirements.

Are there any common issues that cause a lot to fail QC?

Typical failure modes include detectable microbial DNA in the PCR assay, endotoxin levels exceeding 0.25 EU/mL, or benzyl alcohol concentration outside the 0.90 % ± 5 % range. Additionally, breaches in container integrity or excessive subvisible particulates can lead to lot rejection. When any of these occur, the batch is quarantined and a new production run is initiated.

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

Shop 10 mL Vials Bulk (25–999 vials)