Chlorpheniramine Maleate from Canada
Chlorpheniramine maleate salt is an aromatic alkylamine derivative with oxygen-function used as an antihistamine drug. Classified in HTS 2922.49.26.00 as an aromatic salt of oxygen-function amino-acids, other drugs. Meets Chapter 29(C)(2) for salts formed between organic acid/base.
Duty Rate — Canada → United States
100%
Rate breakdown
9903.04.6093.5%Pharmaceuticals: 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 maleic acid salt stoichiometry proof in CoA
• FDA prior notice mandatory; list as finished bulk drug substance