Bacteriostatic Water is a sterile, non-pyrogenic solution of sterile water containing 0.9% benzyl alcohol (as a bacteriostatic preservative). It is used as a diluent or solvent for reconstituting peptides and other research compounds prior to laboratory use.
The addition of benzyl alcohol allows for multiple withdrawals from a single vial, making it ideal for multi-use research protocols where maintaining sterility is essential.