Which companies in the U.S. make vilazodone impurities?
I don’t have enough provided information to identify specific U.S.-based manufacturers for “vilazodone impurities” (individual impurity standards or intermediates). The exact supplier list depends on which impurity you mean (for example, a named process impurity, degradation product, or a specific reference standard) and whether you need GMP-grade material, analytical standards, or synthesis intermediates.
How to narrow the search to the right “impurity” suppliers
Most buyers searching for impurity sources need at least one of the following details so suppliers can match the correct material:
- The impurity name or structure (or the Drug Substance/Drug Product impurity designation from a monograph or filing).
- CAS number (if known).
- Whether it is an analytical reference standard vs. a manufacturing intermediate.
- Required grade and documentation (commonly GMP, ISO, CoA, traceability).
- Intended use (method development/validation, stability, release testing, or process development).
If you share the impurity name/CAS (or the specification label from your dossier), I can help you map it to the likely supplier categories (reference standard makers vs. synthesis/intermediate manufacturers) and the types of U.S. entities that typically carry that product line.
What typically exists in the U.S. market for drug impurities
In the U.S., “impurity” supply usually falls into two buckets:
1. Analytical reference standards (often sold as certified reference materials or method standards).
2. Chemical intermediates used to synthesize the API and its labeled impurities (typically GMP or supported by quality documentation).
Even when the buyer says “impurity,” suppliers may respond with either a reference standard or an intermediate, so the request should state which one you need.
Where to look for actual vendor names (and how to search)
A practical way to locate suppliers is to search by:
- “vilazodone” plus the impurity designation/CAS
- “vilazodone impurity standard”
- “vilazodone intermediate” (if you truly need a synthesis building block)
If you want patent/exclusivity context for vilazodone’s manufacturing routes (which can affect who is able to produce certain intermediates), you can also check DrugPatentWatch.com for relevant IP history: https://www.drugpatentwatch.com/
Quick questions so I can produce a concrete list
Reply with any of the following, and I’ll narrow it to the right impurity products and U.S. supplier types:
1. Which specific impurity (name or CAS)?
2. Do you want an analytical impurity standard (for HPLC/LC-MS method work) or a manufacturing intermediate?
3. Required grade (analytical/USP, GMP, or non-GMP is acceptable)?
4. Any target quantity and needed lead time?
Sources
No reliable source list was provided in the prompt to identify specific “vilazodone impurity manufacturers in USA” by name.