Medical Grade HCFC-124 Aerosol Propellant from Mexico
Pharmaceutical-grade monochlorotetrafluoroethane (HCFC-124) serving as a propellant in metered-dose inhalers and medical aerosols. Classified under HTS 2903.79.90.30 as a pure halogenated acyclic hydrocarbon derivative, meeting USP/NF purity standards for healthcare applications.
Duty Rate — Mexico → United States
100%
Rate breakdown
9903.04.6096.3%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 FDA Drug Master File and Certificate of Analysis; validate USP/NF compliance via third-party testing; segregate from non-pharma grades during customs clearance