Acetohydroxamic Acid API from Canada
Acetohydroxamic acid is a hydroxylamine derivative serving as the active pharmaceutical ingredient in medications for urinary tract infections. Classified under HTS 2928.00.30.00 as a drug due to its direct medicinal application and compliance with pharmacopeial standards.
Duty Rate — Canada → United States
100%
Rate breakdown
9903.04.6096.3%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
• Submit DMF and stability data to CBP for verification as API rather than research chemical
• Comply with FDA import alerts for hydroxylamine compounds by providing GMP manufacturing certificates
• Declare exact purity levels (>98%) to prevent down-classification to non-drug chemical