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Acidification solvent · process auxiliary for in-house diluent prep
Overview
Glacial (concentrated, anhydrous) acetic acid is supplied as a process-auxiliary solvent for labs that prepare acidic-pH reconstitution diluents in-house at custom concentrations. While the pre-prepared 0.6% Acetic Acid Water covers the most common acidic-pH case, some workflows need other concentrations (for example 0.1%, 0.3%, or 1.0%) depending on a specific peptide's solubility and stability behaviour; glacial acetic acid (≥ 99.7%) is the starting material from which those diluents are prepared at the target dilution. This SKU is a process auxiliary, not a peptide reference standard. Lyochem supplies glacial acetic acid as a ≥ 99.0% solvent-grade reagent in sealed containers. Because it is a solvent rather than a peptide, the analytical scope is the standard solvent-grade specification — GC, water content, and residual-impurity profiling — rather than the peptide-style HPLC + mass-spec packet. A lab preparing in-house diluents should follow local pharmacopeia requirements for solvent quality, and any resulting diluent intended for injectable-grade research use must be sterilized after preparation. Standard chemical-safety handling applies (corrosive; use in a fume hood with appropriate PPE).
Applications & buyer fit
Solvents and ancillaries are the bench-support consumables a lab pairs with a reference standard once it leaves the freezer — bacteriostatic and sterile water, isotonic saline, 0.6% acetic-acid water, and glacial acetic acid for in-house diluent prep. These are diluents and process auxiliaries rather than research targets, so the documentation is diluent / solvent-grade (component identity, sterility, endotoxin, pH / osmolality, pharmacopeia monograph) rather than the peptide HPLC + MS + sequence packet. Diluent selection follows the peptide's stability profile: acidic-pH-requiring proteins use the acetic-acid water; preservative-incompatible peptides use sterile water; preservative-compatible peptides for multi-use vials use BAC water.
Academic Laboratories
Universities, medical schools, and government research institutes qualifying a reference standard for a method-development or in vivo workflow.
Core Facilities & Instrumentation Cores
Shared instrumentation cores, mass-spec facilities, and departmental analytical labs holding reference standards for cross-PI method validation and reagent qualification.
Every release ships with its own batch-specific CoA — identity, purity, and the analytical scope agreed at quote stage, tied to the exact lot you receive.
Review a representative batch CoA before you order, so you can confirm the packet matches what your method or sponsor audit needs.
Supplied strictly as a research reagent to research institutions — not a finished dosage form and not for human administration. Buyer qualification runs at the inquiry stage.
Specifications
Documentation available on request
Regulatory note
Process-auxiliary solvent, not a peptide reference standard; supplied for Research Use Only. Corrosive — handle per standard chemical-safety practice. Diluents prepared in-house for injectable-grade research use must be sterilized after preparation, per the destination market's requirements.
Frequently asked questions
No. Glacial acetic acid is the anhydrous, concentrated (≥ 99%) form, distinct from food-grade vinegar (~4–7% in water) or dilute laboratory acetic acid (10–50% in water). 'Glacial' refers to the ice-like crystals pure acetic acid forms below its 16.6 °C freezing point. It is a solvent / process-auxiliary for preparing custom acidic-pH diluents — food-grade vinegar must not be substituted in research contexts, since the impurity profile is fundamentally different.
As a solvent rather than a peptide, the analytical scope is the standard solvent-grade specification — GC for purity, water content, and residual-impurity profiling — not the peptide-style HPLC + mass-spec packet. A lab preparing diluents from it should follow local pharmacopeia requirements for solvent quality.
Glacial acetic acid is corrosive and its vapour is irritating, so handle it in a fume hood with chemical-resistant gloves and splash protection, stored in compatible containers away from strong oxidizers and bases. Any acidic-pH diluent prepared from it for injectable-grade research use must be sterilized after preparation; the supplied solvent itself is a process auxiliary, not a ready injectable diluent.
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