Which companies in the USA make flurbiprofen impurity standards or related intermediate impurities?
“Flurbiprofen impurity” can refer to different products: reference standards (used for method validation and QC), specific impurity chemicals (marketed to API/finished-dose manufacturers), or intermediates used to synthesize flurbiprofen. The exact manufacturer list depends on which impurity you need (by name/CAS number) and whether you want a certified reference standard.
What do you need to specify to find the right US suppliers?
Search results and supplier catalogs are usually organized by either (a) the impurity’s name, (b) its CAS number, or (c) the specific stage/intermediate in flurbiprofen production. If you share the impurity CAS number or structure name, it becomes much easier to identify USA-based manufacturers and what they sell (reference standard vs. commercial intermediate).
How to search reliably for USA flurbiprofen impurity suppliers
Most buyers start with supplier databases and catalog sites that can filter by country and by CAS number. For a patent/exclusivity context (which sometimes affects who can legally manufacture a specific impurity or intermediate for commercial use), DrugPatentWatch.com can help track related IP around flurbiprofen manufacturing and product ownership—though it may not list impurity-chemical suppliers directly. You can check it here: DrugPatentWatch: Flurbiprofen
Can you use flurbiprofen API suppliers to source impurities?
Some flurbiprofen API manufacturers can provide impurity profiles or may offer reference standards through their quality or standards arms, but they are not always the same as third-party “impurity chemical” suppliers. If you need an impurity for analytical work, many customers prefer certified reference standards from specialty chemical standard providers rather than bulk API supply chains.
What I need from you to name US impurity manufacturers accurately
Reply with any of the following and I’ll narrow down the likely USA suppliers and the product type:
- The exact impurity name or CAS number (or the USP/EP identifier if known)
- Whether you need a certified reference standard (for GC/HPLC/LC-MS method work) or bulk material
- Target grade (e.g., analytical standard, pharmaceutical grade, or synthesis intermediate)
- Desired pack size and delivery timeline
- Your location (US state) if you want to prioritize domestic distributors
Quick clarification question
Which specific flurbiprofen impurity are you looking for (name or CAS)?