Category hub · Sterile liquid diluents
Laboratory supplies & diluents
Reconstitution is where most avoidable variance enters a peptide protocol. The diluent, the volume and the handling of the vial septum all affect what ends up in solution, so we supply the two diluents referenced in the majority of published methods.
About this category
Bacteriostatic water is supplied as 10 ml × 10 vials of sterile liquid containing 0.9% benzyl alcohol — a liquid, never a powder. Acetic acid is supplied as 3 ml × 10 vials of sterile liquid, used where a sequence needs a mildly acidic vehicle to go fully into solution.
Both are sold as multi-vial liquid kits and ship with the rest of your order in the same tracked consignment.
- Bacteriostatic water — 10 ml × 10 vials, sterile liquid
- Acetic acid — 3 ml × 10 vials, sterile liquid
- Ships in the same consignment as your peptide kits
Laboratory supplies & diluents in the catalogue (4)
Acetic AcidLow-pH liquid reconstitution solvent — kit of 10 × 3 ml vials.
Bacteriostatic WaterSterile liquid diluent (0.9% benzyl alcohol) — 10 ml × 10 vials.
Benzyl AlcoholSterile bacteriostatic preservative liquid — kits of 10 × 3 ml or 10 × 10 ml vials.
Phosphate Buffered SalineSterile pH-stable liquid buffer — kits of 10 × 3 ml or 10 × 10 ml vials.
Frequently asked questions
Is bacteriostatic water a powder?
No. It is a sterile liquid diluent — 10 ml per vial, ten vials per kit, preserved with 0.9% benzyl alcohol.
When is acetic acid used instead of bacteriostatic water?
For sequences that dissolve poorly at neutral pH, where the reference method specifies a mildly acidic vehicle.
How much diluent do I need per vial?
It depends on the concentration the research method specifies.
Other categories
All compounds are supplied for in-vitro laboratory research use only. Nothing on this page is medical advice or a recommendation for human or veterinary use.
Laboratory supplies & diluents: selection guide
What each supply is for
Bacteriostatic water is sterile water with 0.9% benzyl alcohol, used as a general reconstitution solvent because the preservative slows microbial growth in multi-use vials. Acetic acid (dilute) is used for peptides that dissolve poorly at neutral pH, such as IGF-1 variants. Benzyl alcohol is supplied separately for researchers preparing their own preserved diluent. Phosphate-buffered saline (PBS) is an isotonic buffer used in cell work and assay preparation.
Choosing a solvent
The product page for each peptide notes the solvent commonly used in published methods where we have that information. When in doubt, check the solubility data in the original paper or ask us before ordering. Choosing the wrong diluent is a common reason a reconstituted peptide aggregates or loses activity.
Storage and shipping
Supplies ship with peptide orders at no extra shipping charge beyond the per-order rate. Store unopened bottles at room temperature, away from light. Once opened, follow standard laboratory practice for sterile solutions and label the date first used.
Ordering alongside peptides
Most researchers add one diluent per peptide order: bacteriostatic water for general use, or acetic acid when a product page or published method calls for an acidic solvent. PBS suits cell-based work where an isotonic buffer is needed, and benzyl alcohol is for preparing a custom preserved diluent in house. Each supply is listed with its volume per bottle, so check the total volume against the number of vials you plan to reconstitute.
Supplies are research reagents and are not for injection or use in people. If you need a solvent that is not listed, such as sterile water without preservative or a specific buffer concentration, message us and we will tell you whether we can source it. Keeping solvent and peptide in the same order also keeps everything under one tracking number.