</>Build with Tariff Intelligence|Programmatic access to tariff calculations and HS code classification.Explore Developer Resources →
2939.20.00.50/Quinine Base Anhydrous/Mexico

Quinine Base Anhydrous from Mexico

Anhydrous quinine base is the pure alkaloid isolated from cinchona, used to manufacture all quinine salts. Classified HTS 2939.20.0050 as other cinchona alkaloid. Reference standard purity >99%.

Duty Rate — Mexico → United States

100%

Rate breakdown

9903.04.60100%Pharmaceuticals Annex IV: patented pharma articles — 100% floor rate
9903.05.860%Universal product exemption (U.S. note 52(b))
9903.05.900%Articles already subject to Section 232 (steel/aluminum/copper + derivatives, autos + parts, wood, medium/heavy vehicles + parts, semiconductors, patented pharma) — U.S. note 52(f)
Calculate with your customs valueVerify classification with AI

Import Tips

• Karl Fischer titration confirming <0.5% water

• TLC purity profile vs USP reference standard

• Batch genealogy tracing to cinchona bark source

Quinine Base Anhydrous from Mexico — Import Duty Rate | HTS 2939.20.00.50