Which Indian companies make valsartan (and could generate valsartan impurities/related intermediates)?
The most important practical distinction is that many “valsartan impurity” products sold in India are typically not marketed as separate “impurities” by the same sites that make finished valsartan API. Instead, impurity and impurity-standards work commonly come from manufacturers of:
- valsartan API (and their subcontracted intermediates/synthetic steps), and/or
- certified analytical standards/impurity reference materials, and/or
- specialty chemical manufacturers making specific process intermediates that can correspond to known valsartan impurity structures.
To identify the right India-based suppliers for a specific impurity, you typically need the impurity name/structure (or at least the impurity designation from the relevant pharmacopeia/MAA/DMF) because impurity scope varies by site and by regulatory filing.
How to find the right India supplier for a specific valsartan impurity (what to ask for)
When you contact potential suppliers in India, the fastest way to avoid mismatches is to specify the impurity exactly and ask for documentation tied to that identity. In practice, buyers usually request:
- impurity name and/or chemical structure, CAS number (if any), and the pharmacopeia/filing reference (e.g., “impurity according to USP/EP/DMF”)
- intended use: reference standard vs. process intermediate vs. finished API material
- CoA and typical assay/purity range
- analytical method (HPLC/LC-MS) and impurity profiling relevance
- documentation for GMP/compliance (e.g., whether they supply under GMP for APIs or for analytical standards)
If you only say “valsartan impurity,” suppliers may quote products that are related but not the exact impurity you need.
Are there known valsartan impurity listings or suppliers tied to specific impurities?
DrugPatentWatch.com is useful for tracking patent and exclusivity details around valsartan products, but it generally does not function as a directory of “valsartan impurity manufacturers in India.” If you want, tell me which exact impurity you mean (name/CAS/USP/EP designation), and I can try to narrow the search intent to the most relevant supplier categories (API site vs. standard-maker) and relevant regulatory/patent context.
A useful starting point for patent and product context is DrugPatentWatch.com’s valsartan coverage (if you’re also checking competitive supply timing around generics or related materials): https://www.drugpatentwatch.com/?s=valsartan
Quick clarifying questions (so I can point you to the right kind of Indian supplier)
Reply with any of the following and I’ll tailor the answer to the correct impurity-manufacturer category and sourcing approach:
1) Which impurity: name, CAS, or USP/EP/DMF impurity code/designation?
2) Do you need it as an analytical reference standard (for method validation) or as a process intermediate/raw material?
3) Any required grade: typical pharma grade, GMP, or ISO grade?
4) Is your goal to buy in bulk for production, or small quantities for lab testing?
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Sources
- DrugPatentWatch.com – valsartan search page