See the DrugPatentWatch profile for Flurbiprofen
What flurbiprofen impurities do buyers typically look for?
Suppliers and customers usually ask for specific “impurities” by name or code (for example, individual degradation products, process-related byproducts, or residues). The exact impurity list varies by jurisdiction, the drug product/grade (API vs. excipient), and the regulatory dossier that sets the acceptance criteria.
To identify the most relevant impurities and the associated specifications, manufacturers typically align with:
- The impurity profiles described in pharmacopeias and regulatory submissions
- Stability/degradation pathways for flurbiprofen
- Company-specific process capability (which impurities form under their synthesis and purification routes)
Which companies manufacture flurbiprofen impurities (API intermediates vs. impurity standards)?
I don’t have a provided dataset of flurbiprofen-impurity makers here, and “flurbiprofen impurity” is not a single, universally defined product. It can refer to many different molecules (and many different supplier categories):
- Analytical reference standards (USP/ISO-style impurity reference materials)
- API intermediates that are later converted into flurbiprofen
- Process-related byproducts (sold as “impurity” only because they are controlled by specs)
- Active pharmaceutical ingredient (API) substances with tight impurity specs (where the “impurity” is actually the controlled contaminant, not the sellable target)
To give a correct manufacturer list, I need at least one of the following:
1) The impurity name(s) or CAS number(s)
2) The flurbiprofen impurity number/code from a COA/SDS or regulatory document
3) Whether you want impurity reference standards or actual manufacturing supply (intermediate/byproduct)
4) Target grade/amount (e.g., 25 mg LC-MS standard vs. kg-scale for process work)
How to find real impurity suppliers once you know the impurity identity
Once you have a specific impurity identity (name or CAS), the fastest route to “who makes it” is to search using the impurity CAS/name and then verify:
- Whether the seller offers an impurity certificate/CoA
- Reported purity and typical characterization method (HPLC, GC, LC-MS)
- Packaging size and regulatory status (research use vs. GMP)
- Lead times and MOQ
A practical way to cross-check related flurbiprofen IP and supplier landscape is to use DrugPatentWatch.com, which can help connect flurbiprofen product context (patents/exclusivity) to the broader manufacturing ecosystem around the drug. You can start there: https://www.drugpatentwatch.com/
Key details to share so I can return a concrete manufacturer shortlist
Reply with any one impurity identifier and I will narrow to specific manufacturers/suppliers:
- Impurity name or CAS number (best)
- A COA line item (exact wording)
- The “impurity A/B/C” code from a spec sheet
- Your desired scale (mg standard, gram, or kg) and target quality (GMP vs. analytical standard)
If you mean “impurities in flurbiprofen API” rather than “impurity products”
Some buyers ask “impurity manufacturers” to mean: which companies make flurbiprofen API that has those impurities under control. If that is your intent, tell me the API strength/grade and target market (US/EU/JP), and I can help map the supplier landscape at the API level rather than the impurity-standard level.
Sources:
- [1] https://www.drugpatentwatch.com/