Bacteriostatic Water 30mL — Research Grade Reconstitution Solution
Bacteriostatic Water (BW) is sterile water for injection preserved with 0.9% benzyl alcohol, which inhibits bacterial growth and allows multi-dose use of a single vial over an extended period. It is the standard reconstitution solution for lyophilized peptide research compounds, providing a stable, preserved aqueous medium for dissolving peptide powders without accelerating degradation. This 30mL vial provides sufficient volume for reconstituting multiple peptide vials with precise concentration control.
Research Application
Proper reconstitution is critical to peptide research validity. Bacteriostatic water is preferred over sterile water for multi-dose vials because the 0.9% benzyl alcohol preservative prevents microbial contamination after the septum is first punctured. Key reconstitution guidelines for peptide research:
- Allow lyophilized peptide vial to reach room temperature before adding BW
- Add BW slowly by directing the stream down the glass wall of the vial — do not inject directly onto the peptide cake
- Gently swirl — do not shake or vortex — to dissolve the peptide
- Allow solution to sit for 2–5 minutes if not fully dissolved; do not apply heat
- Once reconstituted, store at 2–8°C and use within 28 days (standard BW multi-dose window)
Specifications
- Volume: 30mL per vial
- Preservative: 0.9% benzyl alcohol
- pH: 4.5–7.0
- Sterility: Sterile, pyrogen-tested
- Closure: Multi-dose rubber septum
For research and laboratory use only. Not for human consumption. Not intended for injection in humans or animals outside of controlled laboratory settings.
