Tetracaine Hydrochloride from Canada
Tetracaine is an aromatic amino-ester with butylamino oxygen function, a potent local anesthetic. Classified HTS 2922.50.4000 as 'other' aromatic amino-compounds with oxygen. Ester follows acid classification rules.
Duty Rate — Canada → 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
• Include controlled substance import license; stability testing for hydrochloride; avoid bulk suggesting industrial use