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Bacteriostatic Water - 20 ml
€15,00
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Bacteriostatic Water (BAC) for Laboratory Reconstitution Workflows
Bacteriostatic Water (BAC) is a sterile, laboratory-grade water preparation containing 0.9% benzyl alcohol, a compound that helps inhibit bacterial proliferation inside multi-use vials. Because of this stabilizing effect, BAC is widely used across research laboratories that require reliable reconstitution fluids for peptides, small molecules, and various investigative agents.
Unlike single-use sterile water, bacteriostatic water maintains its integrity over multiple entries, allowing researchers to withdraw aliquots at different points in an experiment without compromising the remaining volume. This characteristic makes BAC particularly useful in studies where repeated dilution, reagent preparation, or multi-phase setup is necessary.
Role in Research Reconstitution and Solution Preparation
In controlled laboratory environments, BAC is frequently selected for:
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reconstituting peptides and other lyophilized materials
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preparing dilutions for experimental assays
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supporting workflows that involve repeated vial access
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maintaining sterility during multi-step experimental timelines
Its composition is designed to preserve solution stability, minimize contamination risk, and support reproducibility across multiple experimental runs. Because BAC contains no sodium or buffering components, it provides a neutral base that does not interfere with biochemical signaling pathways or analytical readouts.
Why Researchers Prefer Bacteriostatic Water
Laboratories working with peptide studies, molecular biology, or metabolic models often rely on BAC because it provides:
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extended usability within a single vial, reducing waste
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consistent sterility, even during multi-access workflows
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compatibility with a broad range of research compounds
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a clear, predictable solvent profile that integrates smoothly into established protocols
These properties help reduce preparation variability, a critical factor in studies where experimental accuracy depends on maintaining uniform solution conditions from one trial to the next.
Laboratory Handling and Application Context
As with all reconstitution materials intended for scientific investigation, bacteriostatic water should be handled according to standard laboratory aseptic techniques. Researchers typically incorporate BAC into workflows involving lyophilized peptides, reference standards, or small-molecule models, ensuring precise concentration control during experimental planning.
BAC’s predictable performance and multi-use stability have made it a staple reagent across peptide facilities, molecular research teams, and biochemical laboratories seeking reliability in their preparation steps.
To support a wider range of laboratory workflows, researchers can also explore additional reconstitution materials such as PBS and HBS, along with other ready-to-use solutions available in our Liquid Formulas Collection.
Product Usage
This item is supplied for research purposes only.
Peptide Storage
All information provided by PRG is for educational and informational purposes only.
Best Practices for Storing Peptides
To maintain the reliability of laboratory results, correct peptide storage is essential. Proper storage conditions help preserve peptide stability for years while protecting against contamination, oxidation, and breakdown. Although certain peptides are more sensitive than others, following these best practices will greatly extend their shelf life and structural integrity.
- Short-Term Storage (days to months): Keep peptides cool and protected from light. Temperatures below 4 °C (39 °F) are generally suitable. Lyophilized peptides often remain stable at room temperature for several weeks, but refrigeration is still preferred if use is not immediate.
- Long-Term Storage (months to years): Store peptides at –80 °C (–112 °F) for maximum stability. Avoid frost-free freezers, as defrost cycles can cause damaging temperature fluctuations.
- Minimize Freeze–Thaw Cycles: Repeated freezing and thawing accelerates degradation. Instead, divide peptides into aliquots before freezing.
Preventing Oxidation & Moisture Damage
Peptides can be compromised by exposure to moisture and air—especially immediately after removal from a freezer.
- Let the vial warm to room temperature before opening to prevent condensation.
- Keep containers sealed as much as possible, and if possible, reseal under a dry, inert gas such as nitrogen or argon.
- Amino acids like cysteine (C), methionine (M), and tryptophan (W) are particularly sensitive to oxidation.
Storing Peptides in Solution
Peptides in solution have a much shorter lifespan compared to lyophilized form and are prone to bacterial degradation.
- If storage in solution is unavoidable, use sterile buffers at pH 5–6.
- Prepare single-use aliquots to avoid repeated freeze–thaw cycles.
- Most peptide solutions are stable for up to 30 days at 4 °C (39 °F), but sensitive sequences should remain frozen when not in use.
Containers for Peptide Storage
Select containers that are clean, intact, chemically resistant, and appropriately sized for the sample.
- Glass vials: offer clarity, durability, and chemical resistance.
- Plastic vials: polystyrene (clear but less resistant) or polypropylene (translucent but chemically resistant).
- Peptides shipped in plastic vials may be transferred to glass for long-term storage if desired.
Regenesis Peptide Storage Quick Tips
- Keep peptides in a cold, dry, dark environment
- Avoid repeated freeze–thaw cycles
- Minimize exposure to air
- Protect from light
- Avoid storing in solution long term
- Aliquot peptides to match experimental needs