Bacteriostatic Water (Bac Water)

For Research Use Only. Not for human use.

Bacteriostatic Water is a sterile solvent for reconstituting lyophilized research peptides. The addition of 0.9% (9 mg/mL) benzyl alcohol inhibits bacterial growth, allowing multiple withdrawals from the same vial for up to 28 days while maintaining sterility, as specified by USP standards (dailymed.nlm.nih.gov).

• Meets United States Pharmacopeia (USP) standards for Water for Injection
• Pyrogen-free, endotoxin-tested (< 0.25 EU/mL)
• Sealed under nitrogen in pharmaceutical-grade glass vials
• Available in 10 mL, 20 mL, and 30 mL multi-dose vials

Key Specifications

• Composition: Sterile Water for Injection + 0.9% (v/v) Benzyl Alcohol
• pH: 5.7 (4.5 – 7.0)
• Osmolarity: ~286 mOsm/L
• Benzyl Alcohol Content: 9 mg/mL (0.9%)
• Endotoxin Level: < 0.25 EU/mL
• Sterility: Terminally sterilized via 0.2 μm filtration
• Packaging: Type I borosilicate glass vial with chlorobutyl stopper and flip-off seal

Why Researchers Choose Nationwide Peptides Bac Water

• Highest purity — double-distilled, pyrogen-free, USP-grade
• Crystal-clear with zero particulates (inspected under polarized light)
• 28-day multi-use shelf life after first puncture (when stored 2–8 °C)
• Trusted by research laboratories and universities worldwide.