Remifentanil Hydrochloride from Mexico
Remifentanil hydrochloride is an ultra-short-acting synthetic mu-opioid agonist used in anesthesia. Under HTS 2939.19.20.00, it qualifies as a synthetic derivative of opium alkaloids per chapter notes defining alkaloid derivatives. Imported as sterile lyophilized powder for hospital compounding.
Duty Rate — Mexico → United States
100%
Rate breakdown
9903.04.60100%Pharmaceuticals: patented pharma articles — 100% floor rate
9903.05.860%Universal product exemption (U.S. note 52(b))
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 stability data for lyophilized form; CBP often requires proof against degradation
• Coordinate with licensed importer of record experienced in Schedule II substances
• Document synthesis route to confirm synthetic origin vs natural extraction