Canvax Bac Water, or laboratory-grade bacteriostatic water, is a sterile, non-pyrogenic aqueous solution containing 0.9% benzyl alcohol designed as a diluent for reconstituting lyophilized compounds. In preclinical settings, it maintains solution sterility over multiple samplings by inhibiting bacterial proliferation, ensuring target concentration integrity during in vitro assays.
Canvax Bac Water, or laboratory-grade bacteriostatic water, is a sterile, non-pyrogenic aqueous solution containing 0.9% benzyl alcohol designed as a diluent for reconstituting lyophilized compounds. In preclinical settings, it maintains solution sterility over multiple samplings by inhibiting bacterial proliferation, ensuring target concentration integrity during in vitro assays.
In laboratory research and analytical testing, maintaining solvent purity and microbial stability is paramount to achieving reproducible experimental data. Canvax Bac Water refers to specialized bacteriostatic water formulated for reconstituting lyophilized reagents, proteins, and scientific peptides. Chemically composed of high-purity sterile water for injection (SWFI) combined with 0.9% (9 mg/mL) benzyl alcohol, this diluent serves as an essential vehicle for multi-dose liquid formulations in preclinical research.
The primary objective of incorporating a bacteriostatic agent into research water is to suppress microbial replication. When handling sensitive peptides such as BPC-157 or TB-500, multiple laboratory samplings over extended assay timelines create potential vectors for airborne or contact contamination. By utilizing a standardized bacteriostatic matrix, laboratory investigators preserve the chemical integrity of the primary analyte while preventing bioburden accumulation that could alter cell culture viability or skew mass spectrometry readings.
The efficacy of bacteriostatic water relies on the biochemical properties of benzyl alcohol (C7H8O), an aromatic alcohol possessing broad-spectrum antimicrobial activity. At a concentration of 0.9% v/v, benzyl alcohol operates by disrupting the structural integrity of bacterial cell membranes. In vitro studies demonstrate that benzyl alcohol increases membrane fluidity and induces cell lysis by compromising the lipid bilayer of both Gram-positive and Gram-negative bacteria.
Crucially, at this calibrated concentration, benzyl alcohol acts as a bacteriostatic compound rather than a harsh bactericidal agent that might denature target peptide structures. The molecular weight of the analyte and its tertiary structure remain unperturbed when dissolved in a properly buffered bacteriostatic solvent. This chemical neutrality ensures that downstream analytical methods—including reversed-phase high-performance liquid chromatography (RP-HPLC) and electrospray ionization mass spectrometry (ESI-MS)—yield accurate spectra without solvent-induced adduct artifacts.
Selecting the appropriate solvent matrix is a foundational step in assay design. Laboratory researchers evaluate multiple aqueous vehicles based on stability requirements, osmotic pressure, and experiment duration. A comparative analysis of standard laboratory solvents highlights key differences:
Bacteriostatic Water (Bac Water): Formulated with 0.9% benzyl alcohol. It provides extended microbicidal suppression, allowing reconstituted solutions to remain stable under refrigeration (2°C–8°C) for up to 28 days during repeated vial access. Ideal for multi-use research vials containing synthetic peptides like CJC-1295 No DAC.
Sterile Water for Injection (SWFI): Lacks antimicrobial agents entirely. While unreactive and suitable for single-use immediate assays, exposed SWFI solutions are highly susceptible to ambient bacterial contamination within hours of opening.
Normal Saline (0.9% NaCl): An isotonic solution useful for cell culture models sensitive to osmotic shock. However, the presence of sodium and chloride ions can occasionally induce salt precipitation or adduct formation during mass spectrometry analysis when compared to neutral bacteriostatic water.
For comprehensive laboratory workflows, browsing our full catalog of all peptides helps researchers select compatible reconstitution matrices tailored to specific amino acid profiles.
Not all laboratory compounds behave identically when exposed to aqueous diluents. The solubility of a lyophilized peptide depends heavily on its primary amino acid sequence, net charge, and overall hydropathy index (GRAVY score). Hydrophilic peptides containing charged residues (such as lysine, arginine, or glutamate) dissolve readily in Canvax Bac Water without mechanical agitation.
Conversely, hydrophobic peptides containing high proportions of leucine, isoleucine, or phenylalanine may display delayed dissolution kinetics in standard 0.9% benzyl alcohol solutions. In such preclinical scenarios, researchers may utilize mild acidic buffers (such as 0.1% dilute acetic acid) prior to diluting with bacteriostatic water. Proper protocol adherence prevents aggregation, gelation, or precipitation, ensuring homogeneous concentration across microplate wells or HPLC autosampler vials.
Achieving consistent concentration measurements requires standardized reconstitution protocols. When preparing reagents using research-grade bacteriostatic diluents, laboratory personnel adhere to rigorous aseptic techniques under laminar flow hoods.
First, allow both the lyophilized peptide vial and the bacteriostatic water container to equilibrate to room temperature (20°C–25°C) to prevent thermal shock. Wipe the septa of both vials with 70% isopropyl alcohol wipes. Using a sterile laboratory syringe, aspirate the exact calculated volume of diluent required for the desired working concentration (e.g., 1.0 mL or 2.0 mL).
Slowly direct the liquid stream down the glass wall of the compound vial rather than spraying directly onto the lyophilized cake. Allow the solvent to gently submerge the powder, followed by smooth swirling motion. Avoid high-shear vortexing or vigorous shaking, which can introduce air bubbles and cause surface-induced denaturation of fragile peptide bonds. For detailed procedural variations across diverse peptide classes, consult our dedicated peptide reconstitution guide.
In preclinical in vitro cell assays and biochemical screening, lipopolysaccharides (LPS)—commonly known as endotoxins—represent a critical confounding variable. Derived from the outer membrane of Gram-negative bacteria, endotoxins can trigger non-specific inflammatory signaling in cell cultures, skewing cytokine expression assays and cell viability metrics.
High-quality research solvents must meet stringent endotoxin thresholds, typically verified via the Limulus Amebocyte Lysate (LAL) assay or recombinant Factor C (rFC) testing. PX1 Research mandates that all diluents and research solutions maintain endotoxin levels below 0.05 EU/mL. By maintaining rigorous bioburden limits during production in ISO 17025 accredited facilities, researchers can conduct in vitro evaluations with absolute confidence that observed biological activity stems strictly from the experimental target.
To ensure experimental reproducibility, researchers must verify that their diluents and reagents meet published chemical specifications. Vendor accountability requires batch-specific verification rather than generic certificates.
Every batch of diluent and peptide supplied by PX1 Research undergoes rigorous testing, including Reversed-Phase High-Performance Liquid Chromatography (RP-HPLC) to confirm purity profiles exceeding 99%, and Mass Spectrometry (MS) to verify molecular weight identities without unexpected degradation peaks. Each shipment is backed by a downloadable, lot-traceable Certificate of Analysis (COA). Researchers investigating complex pathways can explore our extensive research hub to access analytical documentation and technical datasheets.
Unopened containers of Canvax Bac Water and equivalent bacteriostatic solvents should be stored at controlled room temperature (15°C to 25°C) protected from direct light exposure. Exposure to excessive ultraviolet light or thermal spikes can induce slow oxidation of benzyl alcohol into benzaldehyde or benzoic acid, which may alter pH balance and solvent performance.
Once a bacteriostatic vial septum is punctured, standard laboratory practices recommend maintaining the reconstituted solution under refrigerated conditions (2°C to 8°C) and utilizing the reconstituted reagent within 28 days. Freezing bacteriostatic water is generally discouraged; freezing can cause phase separation of the benzyl alcohol preservative or compromise the glass vial integrity due to liquid expansion.
Sourcing reliable laboratory supplies requires a supply chain built on accountability and speed. PX1 Research operates fully within GMP-compliant, USA-based facilities, shipping directly from distribution hubs in California and Arizona. Orders placed Monday through Friday ship same-day, mitigating research downtime.
For academic institutions, biotechnology enterprises, and high-throughput screening facilities requiring bulk quantities of research solvents or specialized compounds, our dedicated wholesale program provides tailored logistics, volume pricing, and dedicated analytical support. Equipping your facility with verified research compounds ensures that experimental parameters remain uncompromised from baseline testing through published findings.
What is Canvax Bac Water used for in laboratory settings?
Canvax Bac Water is a research-grade bacteriostatic water solvent containing 0.9% benzyl alcohol. It is used in laboratory settings to reconstitute lyophilized peptides, proteins, and chemical reagents for in vitro and preclinical research assays.
Why is 0.9% benzyl alcohol added to bacteriostatic water?
Benzyl alcohol acts as a preservative that inhibits bacterial growth (bacteriostatic activity) when vials are accessed multiple times during laboratory experimentation, extending solution stability up to 28 days under refrigeration.
How does bacteriostatic water differ from sterile water for injection?
Bacteriostatic water contains 0.9% benzyl alcohol as an antimicrobial preservative, allowing multiple accesses over time. Sterile water for injection lacks preservatives and is strictly intended for single-use immediate applications.
Can bacteriostatic water be frozen after reconstitution?
Freezing bacteriostatic water is generally not recommended because freezing can lead to phase separation of the benzyl alcohol preservative and risks fracturing glass container walls due to thermal expansion.
What are the standard endotoxin limits for PX1 Research diluents?
PX1 Research diluents maintain strict endotoxin thresholds, typically tested via LAL assay to remain below 0.05 EU/mL, ensuring non-interference in sensitive in vitro cell culture assays.
How should reconstituted peptide solutions prepared with bac water be stored?
Reconstituted peptide solutions using bacteriostatic water should be stored in a laboratory refrigerator at 2°C to 8°C and protected from direct light, maintaining operational stability for up to 28 days.
How do I verify the purity of diluents and peptides from PX1 Research?
PX1 Research provides lot-specific Certificates of Analysis (COA) for every product, verifying chemical purity through RP-HPLC, mass spectrometry (MS) identity verification, and endotoxin testing.
Does PX1 Research offer bulk procurement for research institutions?
Yes, PX1 Research offers institutional pricing and direct supply channels for high-volume research laboratories through our wholesale lab account program.
All products are sold strictly for laboratory and research use only. Not for human or veterinary use, diagnosis, treatment or consumption. Statements have not been evaluated by the FDA.