Quinidine Hydrochloride from China
Quinidine hydrochloride is the soluble HCl salt of quinidine used in emergency cardiac treatment. Falls under HTS 2939.20.0050 as other cinchona alkaloid salt. Rapid dissolution profile for injectables.
Duty Rate — China → 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)
Import Tips
• Particle size distribution critical for injectable grade
• Chiral purity >99.5% D-isomer required
• Heavy metals specification <10 ppm mandatory