Which UK companies manufacture phenyl butyrate (and likely related impurities)?
You’d typically find “phenyl butyrate impurities” indirectly through manufacturers of phenyl butyrate itself, plus CDMO/chemical-impurity suppliers that sell analytical standards (for HPLC/GC method development) and impurity reference materials. With only your query, I can’t reliably name specific UK manufacturers without knowing the exact impurity (its CAS number or structure) and what you need it for (API impurity reference, formulation work, or a commercial supply).
How to identify the right UK supplier for a specific phenyl butyrate impurity
Most buyers narrow to one of these paths:
- Analytical standards/impurity reference materials: suppliers that provide characterized lots used to qualify methods and support regulatory filings.
- Specialty chemical suppliers: companies that list specific impurity names or CAS numbers in their catalog.
- Contract manufacturing (CDMO): UK providers that can synthesize an impurity on request, usually after you share specifications (assay/purity, impurities limits, characterization package).
To get accurate UK manufacturer options, you normally need:
- The exact impurity identity (name and/or CAS number).
- Requested purity (e.g., 95%+ for synthesis support vs 98–99%+ for reference standards).
- Intended use (analytical standard vs process intermediate vs material for study).
- Quantity and timeline.
Common “impurity” details that change which supplier can help
“Phenyl butyrate impurities” can mean different things depending on the upstream process and specification. A supplier’s ability varies by:
- Whether the impurity is an isomer, degradation product, or residual solvent/byproduct.
- Whether you need a certified reference material (CRM) with CoA and traceable characterization.
- Whether the impurity is controlled or hazardous (some suppliers won’t stock or will require additional documentation).
Quick questions that let me return a concrete UK vendor list
Reply with any one of the following, and I can target the right kind of UK manufacturers/suppliers:
1) The impurity name and CAS number, or a structure/image
2) The role you need it for (analytical standard vs synthesis)
3) Quantity (grams, kilograms) and whether you need it urgently
4) Target purity and whether you need a CoA/typical analytical package
If you only need “impurity standards,” search terms that work well in the UK
When sourcing in the UK, searches that usually surface the right suppliers are along the lines of:
- “phenyl butyrate impurity reference standard”
- “(CAS) impurity standard UK”
- “analytical standard supplier UK”
- “impurity synthesis CDMO UK”
Send the specific impurity (CAS/name), and I’ll help narrow to the most relevant UK manufacturer/supplier categories and the fastest sourcing routes.