Diclofenac

When sourcing Diclofenac (API or finished dosage), it is critical to ensure the supplier complies with GMP (Good Manufacturing Practice) standards. For international trade, the product should meet pharmacopoeia standards such as USP (United States Pharmacopeia), BP (British Pharmacopeia), or EP (European Pharmacopoeia). You must request a COA (Certificate of Analysis) for every batch to verify purity, impurity profiles, and heavy metal limits.

Buyers must specify whether they require Diclofenac Sodium or Diclofenac Potassium. Diclofenac Sodium is typically used for delayed-release formulations to treat chronic inflammation, whereas Diclofenac Potassium is absorbed more quickly and is often used for immediate pain relief. Ensure the CAS Number (15307-79-6 for Sodium, 15307-81-0 for Potassium) is clearly stated in the contract to avoid technical errors.

For finished dosages like tablets, gels, or injections, evaluate the dissolution rate, stability data, and shelf-life studies. If purchasing Diclofenac Diethylamine Gel, check the viscosity and absorption enhancers used in the formulation. For injectable forms, ensure the product is pyrogen-free and meets sterility requirements.

As a pharmaceutical product, you must verify if the supplier can provide a CEP (Certificate of Suitability) or a DMF (Drug Master File) number. These documents are essential for regulatory filings with your local health authority (e.g., FDA, EMA). Additionally, an FSC (Free Sale Certificate) is often required to prove the product is legally sold in the country of origin.

Always conduct a factory audit or hire a third-party inspection agency like SGS or Intertek to verify the production facility. On Made-in-China.com, prioritize Audited Suppliers who have undergone onsite verification. Never settle for prices significantly below the market average, as this often indicates low purity or recycled chemical waste.

Diclofenac is sensitive to light and moisture. It must be shipped in light-resistant, airtight containers. Ensure the logistics provider maintains a controlled temperature environment (usually 15°C to 30°C). For sea freight, use moisture-proof pallets and ensure the MSDS (Material Safety Data Sheet) is provided to the carrier for hazardous material handling (if applicable).

Use Escrow services or Letters of Credit (L/C) to ensure payment is only released upon the presentation of valid shipping documents and a passed third-party lab test. This protects the buyer from paying for non-compliant chemical batches.

Ensure the product does not violate patent laws in your country. Check the import license requirements of your local Ministry of Health. Some regions classify certain NSAIDs under specific monitoring lists; failing to provide the correct import permit can lead to customs seizure and heavy fines.