Laboratory Consumables · Checked
Hospira Bacteriostatic Water (30ml)
A reconstitution vehicle, not a peptide.
Bacteriostatic water is sold by volume, so it sits outside the price-per-milligram ranking used on compound pages. What matters here is the preservative concentration, the in-use window once the vial is punctured, and sterility documentation.
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On this page
How to read these rows
Verify the COA
A certificate of analysis should come from an independent lab, reference the exact batch number on the label, and be recent. Vendor-issued documents without a named third-party lab carry less weight — the COA row links to what each vendor publishes.
Match the format
Lyophilized vials and sprays are different products with different concentrations. That is why sprays sit outside the $/mg ranking — compare vials to vials, sprays to sprays.
Count the total cost
Shipping fees, free-shipping thresholds and active discount codes can flip which vendor is actually cheapest for your order size. The $/mg figure is the baseline; the shipping and code details finish the math.
How we rank
Compound pages carry a price per mg figure: listed price divided by stated peptide content. Bacteriostatic water contains no peptide, so no per-milligram figure is shown — the row lists the price for the stated volume instead.
We currently track a single listing for this compound. When a second vendor is added the rows are ordered by measured $/mg, and the flags for testing and shipping are computed from the data shown. Each row carries its own verification date.
About Hospira Bacteriostatic Water (30ml)
Hospira/Pfizer USP-grade bacteriostatic water (30 mL) — the gold-standard peptide diluent.
Product Description
Bacteriostatic water is sterile water containing 0.9% benzyl alcohol as a preservative, inhibiting bacterial growth for 28-day multiple-use vial compatibility in laboratory peptide reconstitution applications. Common synonyms in the literature include BAC water and Sterile water with benzyl alcohol.
Storage and in-use window
Because this SKU is used as a reconstitution vehicle rather than a peptide, storage is straightforward: keep the sealed vial refrigerated (2–8 °C) prior to first draw, and once punctured discard after 28 days per USP recommendations for benzyl-alcohol-preserved sterile water. Do not freeze — freezing can compromise the vial seal and permit contamination on thaw. Every draw should use a fresh sterile needle to preserve the bacteriostatic action of the 0.9% benzyl alcohol preservative.
What testing applies
Bacteriostatic water is not a peptide, so HPLC purity figures do not apply to it. The relevant documentation is sterility testing, endotoxin (LAL) testing, and confirmation of the labelled 0.9% benzyl alcohol concentration. Where a vendor publishes a lot-specific certificate, the COA row on the listing links to it.
Research use only. Hospira Bacteriostatic Water (30ml) is sold strictly for in-vitro and animal research. It is not a drug, food, supplement, or cosmetic and is not intended for human or veterinary consumption. No statements on this page describe or imply any therapeutic effect.