Chloroprocaine Hydrochloride from Mexico
Chloroprocaine hydrochloride is a chlorinated p-aminobenzoic acid ester, an aromatic amino-acid-phenol with ester oxygen, under HTS 2922.50.3500 via note 3 for short-acting anesthetics. Fits chapter notes for halogenated oxygen-function amino-compounds.
Duty Rate — Mexico → United States
100%
Rate breakdown
9903.04.6093.5%Pharmaceuticals Annex IV: patented pharma articles — 100% floor rate
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
• Highlight halogenation in SDS for note compliance; ensure no Chapter 28 inorganic salt confusion
• Pitfall: ester hydrolysis claims altering classification