Bacteriostatic Water 10ml

Bacteriostatic Water 10ml — Sterile USP-Grade Diluent for Peptide Reconstitution

This 10ml vial of Bacteriostatic Water is the standard-size solvent used for reconstituting lyophilized research peptides, dissolving research compounds, and general laboratory dilution work. The 10ml format is widely regarded as the practical middle ground between smaller 3ml vials and bulk 30ml supply — it is the size most commonly specified in reconstitution protocols, sitting between 3ml vials used for small-volume reconstitution and 30ml vials used for high-volume applications. Mountainside Medical

What makes it “bacteriostatic”

This vial contains sterile water for injection (USP) preserved with 0.9% benzyl alcohol (NF) — the United States Pharmacopeia specification for multi-use parenteral preparations. Benzyl alcohol functions as a bacteriostatic preservative by disrupting bacterial cell membrane integrity and interfering with membrane-associated transport processes, preventing colonization of the solution. This is what allows the vial to be safely punctured and drawn from multiple times, unlike standard sterile water for injection, which is preservative-free and designed for single-use injection only. Heritage Labs USA + 2

Product specifications

Bacteriostatic Water for Injection, USP is a sterile, nonpyrogenic preparation of water for injection containing 0.9% (9 mg/mL) of benzyl alcohol added as a bacteriostatic preservative, with a pH of 5.7 (4.5 to 7.0). It is sterilized using a 0.22 µm filtration process under aseptic fill conditions. At this concentration, the vial supports repeated withdrawals for up to 28 days under proper aseptic handling. DailyMed + 2

Why it’s preferred for peptide work

Bacteriostatic water is the preferred solvent for dissolving peptide structures, as it maintains the correct pH balance to prevent peptide degradation, or denaturing, during reconstitution. It serves as the standard reconstitution solution for a wide range of lyophilized research peptides, supporting multi-dose research preparations and stable peptide solution preparation throughout a research protocol. ONYX BIOLABSPalmettopeptides

How to use

When drawing the solution for peptide reconstitution, invert the vial and insert the needle through the center of the stopper, drawing slowly to the desired volume since rapid withdrawal creates air bubbles that compromise measurement accuracy. Inject the solvent into the peptide vial along the inside glass wall rather than directly onto the lyophilized powder, then swirl gently in a circular motion until the powder dissolves completely — do not shake, vortex, or invert vigorously, as mechanical agitation can denature peptide secondary structure. Heritage Labs USAHeritage Labs USA

Storage and handling

Store at room temperature (15–25°C) and limit exposure to extreme temperatures that may affect the product. Always check the expiration date before use, and discard the vial if the solution appears discolored or contains particles. Canvax Reagents SLCanvax Reagents SL

Important disclaimer

This product is intended strictly for laboratory and research use. It has not been tested for use in diagnostics or drug development, nor is it suitable for administration to humans or animals. Buyers must be qualified personnel and agree to use this product in compliance with all applicable laws and regulations. Canvax Reagents SL

For more on how bacteriostatic water compares to standard sterile water, see our Bacteriostatic Water FAQ guide, or read the official USP monograph details via DailyMed’s bacteriostatic water label information. If you need a larger supply, check out our 30ml multi-pack options.