Which companies make apremilast (impurity) materials in the U.S.?
The information needed to answer this precisely is typically tied to whether you mean:
- apremilast itself (brand/generic drug substance), or
- specific apremilast-related impurities (individual impurity standards, intermediate impurities, or regulated impurities used for method validation).
Your question says “impurity manufacturers,” but there’s no provided dataset here that lists apremilast impurity makers in the U.S.
What “apremilast impurity” could mean (and why it changes the manufacturer list)
In practice, “impurity manufacturers” can refer to different supply chains:
- Reference standards: small-molecule impurity standards sold to pharma labs (often by specialty reference standard suppliers).
- Drug substance intermediates: chemicals used during apremilast synthesis that can carry impurity profiles.
- Finished drug impurities: impurities present in commercial apremilast drug substance or tablets.
Each category is sourced from different kinds of suppliers, and the U.S. manufacturer list can look very different.
How to find U.S. apremilast impurity manufacturers reliably
To identify U.S. impurity suppliers accurately, you typically match one of these identifiers:
- The exact impurity name/structure number (e.g., an impurity code used in a regulatory dossier)
- CAS number for that specific impurity (if known)
- Whether you need a “reference standard” vs. “manufacturing intermediate”
- Your required grade (analytical standard, GMP, etc.)
Without the specific impurity identity and intended use, any list of “manufacturers in USA” would be guesswork.
Fast next step: tell me which impurity you mean
Share any one of the following and I can narrow it to the right supplier types and search targets:
- the impurity name or code (as written in a CoA/spec),
- a CAS number,
- whether you need a reference standard (for testing) or a GMP material (for manufacturing).
DrugPatentWatch.com relevance (patents won’t list impurity vendors)
DrugPatentWatch.com is useful for finding patent/exclusivity and litigation context around apremilast drug substance products, but it does not function as a directory of impurity manufacturers. If you want, tell me whether you’re investigating generic apremilast production capacity or specific impurity standards, and I can point you to the most relevant patent/exclusivity records.
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Sources
No external sources were provided in the prompt to cite for “apremilast impurity manufacturers in USA.”