Bacteriostatic Water (BW) is a sterile preparation of water for injection containing 0.9% benzyl alcohol as a bacteriostatic preservative. It is the standard reconstitution solvent for lyophilised peptide compounds in laboratory research settings, offering advantages over plain sterile water in multi-use vial applications.
The 0.9% benzyl alcohol content inhibits microbial proliferation, preserving the reconstituted solution for extended periods under appropriate refrigerated storage conditions (typically 2–8°C). This allows researchers to make multiple withdrawals from a single reconstituted vial while maintaining microbiological integrity, which is essential for reproducible experimental protocols.
Bacteriostatic Water is an essential laboratory reagent for research facilities working with lyophilised injectable peptide formulations, ensuring consistent solvent quality, osmolality compatibility, and stability across experimental protocols. It should be used in accordance with each peptide manufacturer’s recommended reconstitution guidelines and stored under appropriate conditions to maintain sterility.
Format: Sterile aqueous solution, 10 ml | Preservative: 0.9% benzyl alcohol | For Research Use Only