Bacteriostatic Water for Research Use
Bacteriostatic water (BAC water) is sterile water containing 0.9% benzyl alcohol as a bacteriostatic preservative. It is used in laboratory settings for the reconstitution of lyophilized (freeze-dried) research compounds, peptides, and proteins. Alpha Tides PNW supplies BAC water in 30mL multi-use vials for laboratory reconstitution workflows.
Why Use Bacteriostatic Water?
Unlike sterile water for injection, bacteriostatic water contains benzyl alcohol, which inhibits bacterial growth after the vial is opened. This allows multiple withdrawals from a single vial over a period of up to 28 days, making it the preferred solvent for reconstituting lyophilized research compounds in multi-use laboratory protocols.
Reconstitution Guidelines
When reconstituting lyophilized compounds, slowly inject BAC water along the inside wall of the vial containing the lyophilized powder. Do not shake — allow the compound to dissolve naturally or gently swirl. The bacteriostatic preservative supports repeated sterile access over the working life of the reconstituted vial.
Storage & Handling
- Unopened: Store at room temperature (15–25°C), away from direct light.
- After opening: Keep the vial sealed between uses and discard within 28 days.
- Handling: Use sterile technique for every withdrawal.
Related Research
- How to Reconstitute Lyophilized Compounds — Step-by-step reconstitution protocol
- How to Store Research Compounds Properly — Storage and stability guidance
- Research Compounds Catalog — Lyophilized compounds that require reconstitution
For research use only. Not for human consumption. For use by qualified researchers in controlled laboratory settings only.