What manufacturers make pemigatinib impurities, and who makes the active drug substance?
Pemigatinib (Pemazyre) impurity availability depends on two separate supply paths: (1) impurity reference standards or analytical intermediates supplied for method development/quality control, and (2) manufacturers of the underlying bulk drug substance (API) and intermediates that can generate/by-design control impurity profiles during synthesis. The provided information does not name any specific impurity-grade suppliers, so I can’t accurately list manufacturers without risking incorrect claims.
Are “pemigatinib impurities” sold as standards by reference-standards companies?
Some suppliers specialize in analytical reference standards (including drug-related impurities) used in HPLC/LC-MS method validation. Commonly, these are produced in collaboration with or sourced from the same chemistry teams that support API manufacturing. However, I can’t confirm any specific company offerings for pemigatinib impurities from the information provided.
How to find reliable impurity-manufacturing sources (without guessing)
If you’re trying to source pemigatinib impurities for testing or specification work, the most dependable approach is to:
- Request a “drug substance impurity reference standard” or “impurity standard” for pemigatinib from analytical standard suppliers (and ask for purity, characterization package, and CoA).
- If you need multi-impurity material (not just one compound), ask the supplier whether they manufacture by synthesis vs. extract/isolate, and whether they can provide structural confirmation (e.g., LC-MS/HRMS, NMR).
- Verify whether your impurity is one of the named control impurities in the drug’s regulatory filings (API DMF/CEP) or only an unspecified degradation product. Different impurity definitions change what suppliers can provide.
What do you need to tell a supplier to get the right pemigatinib impurity?
To avoid delays or mismatches, send the supplier:
- The exact impurity identity (chemical name and/or structure, or the regulatory/filing impurity code).
- Use case: analytical reference standard, method development, stability study, or impurity qualification.
- Required quantity and target purity/limit.
- Characterization requirements (common requests: HRMS, NMR, stereochemistry where relevant).
- Regulatory intent (e.g., for research use only vs. GMP testing material).
If you share details, I can narrow to the right impurity manufacturers
Reply with any of the following and I’ll help you target the most likely manufacturer/source types and the right search terms to use:
- Which impurity(s) you mean (name/structure, or impurity code from a specification).
- Your region (US/EU/China/India) and intended use (research vs. GMP/QC).
- Desired grade (analytical standard vs. GMP/QC reference material).
Sources
No source information was provided in the prompt, so no citations are included.