Alfentanil Hydrochloride USP from Canada
Alfentanil HCl, salt of alfentanil listed in 2933.33.01.00, short-acting synthetic opioid with unfused pyridine ring structure. Used for brief surgical anesthesia procedures.
Duty Rate — Canada → United States
100%
Rate breakdown
9903.04.60100%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
• Cold chain validation essential; provide photostability testing; coordinate advance quota notifications