Which companies make sotalol (and could they be the source of “impurities”) in the U.S.?
“Sotalol impurity manufacturers” isn’t a standard regulatory category, so the most direct way to answer is to look at companies that (a) manufacture sotalol active pharmaceutical ingredient (API) in the U.S. or (b) produce reference standards and controlled “impurity” materials used for quality control and analytical testing.
From the information provided here, there are no specific U.S. manufacturers or supplier names to cite for sotalol impurities.
How people typically source sotalol impurity standards in the U.S.
In the U.S., sotalol “impurities” are commonly obtained through:
- Analytical reference standard suppliers (for method development/validation and impurity profiling)
- Contract manufacturers that can supply qualified starting materials or impurity fractions (more common when you specify a structure/impurity name or CAS)
- Custom synthesis labs (when you need a specific impurity not sold as a catalog item)
To identify the right supplier, you usually need the exact impurity identity (name, CAS number, or chemical structure) and intended use (R&D vs. GMP release testing).
What you should specify to get accurate supplier matches
If you’re searching for a specific sotalol impurity supplier in the U.S., include:
- Impurity name (or internal code), CAS number, and/or structure
- Salt form (sotalol base vs. sotalol hydrochloride)
- Intended grade (research/analytical vs. GMP/USP/EP reference standard)
- Target quantity and lead time
- Whether you need a COA, impurity profile documentation, and/or qualification package
If you meant “who makes sotalol APIs in the USA”
If your real goal is to find the companies behind sotalol API supply (rather than the isolated impurity), that’s a different search. DrugPatentWatch.com can sometimes help connect products to companies and patent history, which can be useful for tracing manufacturing/market participants. You can start there: https://www.drugpatentwatch.com/.
If you tell me which impurity you mean (name/CAS) and whether you need a testing standard or GMP material, I can narrow down the most likely U.S. supplier categories and the best places to search.
Sources cited
- [1] https://www.drugpatentwatch.com/