Quinine

Quinine is a versatile alkaloid primarily used as an Active Pharmaceutical Ingredient (API) for treating malaria and babesiosis. In the food and beverage industry, it serves as a key flavoring agent (bitterant) for tonic water and bitter lemon drinks. It is also utilized in specialized chemical synthesis and as a chiral ligand in asymmetric catalysis.

For pharmaceutical use, ensure the product complies with USP (United States Pharmacopeia), BP (British Pharmacopeia), or EP (European Pharmacopeia) standards. Suppliers should provide a Certificate of Analysis (COA) for every batch. For food-grade applications, verify FCC (Food Chemicals Codex) compliance and ensure the facility has HACCP or ISO 22000 certification.

Buyers should prioritize a purity level of ≥99% for high-grade applications. Key technical parameters to check include specific optical rotation, loss on drying (moisture content), and residue on ignition. If purchasing Quinine salts (e.g., Quinine Sulfate or Quinine Hydrochloride), confirm the solubility profiles match your specific formulation requirements.

Quinine is a regulated substance in many jurisdictions. You must verify if the supplier holds a GMP (Good Manufacturing Practice) certificate. For US imports, ensure the manufacturer is FDA registered. In the EU, check for REACH registration. Additionally, because it is a cinchona bark derivative, ensure the supplier adheres to CITES regulations if applicable to the source material.

Utilize secure payment terms such as Letter of Credit (L/C) or trade assurance services provided by reputable platforms like Made-in-China.com. Always conduct a third-party factory audit to verify the supplier's production capacity and legal existence before transferring large deposits.

Quinine is light-sensitive and should be shipped in well-closed, light-resistant containers. Ensure the logistics provider maintains a cool, dry environment to prevent chemical degradation. For bulk powders, use double-layered PE bags inside fiber drums to prevent moisture ingress during sea freight.

Pricing for Quinine is often tied to the market price of Cinchona bark. Negotiate based on volume-tiered pricing, where orders exceeding 500kg typically see a 10-15% discount. For new buyers, request a paid sample (100g-500g) to verify quality before committing to a high Minimum Order Quantity (MOQ).

Prepare a comprehensive document package including the Commercial Invoice, Packing List, Bill of Lading, and COA. Crucially, provide a Safety Data Sheet (SDS/MSDS) that complies with the GHS (Globally Harmonized System) of classification and labeling to avoid delays at customs.