Bacteriostatic Water (Hospira) 30mL
Genuine Hospira bacteriostatic water, 30mL multiple-dose vial, shipped sealed in the original manufacturer packaging exactly as received. Bacteriostatic water (BAC water) is sterile water for injection containing 0.9% benzyl alcohol as a bacteriostatic preservative. The benzyl alcohol prevents microbial growth in the solution after initial puncture, allowing multiple-dose use from a single vial over a 28-day period. It is the standard diluent for reconstituting lyophilized peptides and proteins in research settings where multiple withdrawals from a single vial are required. BAC water should not be used for neonatal or intrathecal preparations due to benzyl alcohol toxicity concerns in these contexts. Purely Peptides is an independent reseller and is not affiliated with, endorsed by, or sponsored by Hospira or Pfizer. Supplied strictly for in-vitro research and laboratory use only. Not for human or animal use.
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- Free Priority shipping on US orders over $100
- Ships same day on orders before 2 PM MST
- Discreet, unmarked packaging
- Third-party tested to a 99%+ purity standard
Mechanism of Action
Benzyl alcohol exerts bacteriostatic activity by disrupting microbial cell membrane integrity, interfering with membrane-associated metabolic processes, and inhibiting bacterial replication. At 0.9% concentration, it prevents growth of common laboratory contaminants (Staphylococcus, E. coli, Pseudomonas) without affecting the stability or bioactivity of reconstituted peptides at typical storage conditions (2-8°C, ≤28 days). Benzyl alcohol does not achieve sterilization — it suppresses growth of existing organisms rather than killing them.
Properties
Molecular Formula
H₂O + C₇H₈O (0.9% benzyl alcohol)
Storage
Store at room temperature 20-25°C. Discard 28 days after first puncture.
Shipping & Delivery
- Same-day dispatch on orders placed before 2 PM MST (Arizona — no daylight saving).
- US shipping from $5. Free Priority on orders $100+ (before discounts).
- Plain, unmarked packaging — no branding or product names on the outside.
- Ships to all 50 states, DC, Puerto Rico & the U.S. Virgin Islands; tracking emailed on every order.
Quality & Testing
- Independently tested by accredited third-party laboratories.
- Held to a 99%+ purity standard.
- USA-based; dispatched from Phoenix, Arizona.
- Supplied strictly for in-vitro laboratory research — not for human use.
Batch test records are published to each product as they are completed.
Research Applications
References & Citations
(2)USP <797> Pharmaceutical Compounding — Sterile Preparations
United States Pharmacopeia.
Excipients and their use in injectable products
Nema S, Washkuhn RJ, Brendel RJ.
Research Use Only
This product is intended strictly for in-vitro research, educational, and laboratory use. Not for human consumption. The information provided is based on published research and does not constitute medical advice.