Medical Grade CFC-114 Aerosol Propellant from Mexico
High-purity dichlorotetrafluoroethane (CFC-114) used as a propellant in pharmaceutical aerosols is classified under HTS 2903.77.00.30 as a chemically defined halogenated acyclic hydrocarbon. Chapter 29 notes confirm its inclusion as a separate organic compound, excluding immunological products. It was used in metered-dose inhalers before HFA replacements.
Duty Rate — Mexico → United States
13.7%
Rate breakdown
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
Import Tips
• Obtain FDA and EPA approvals for medical-grade imports; provide GMP certificates to avoid holds on pharmaceutical precursor chemicals
• Document as 'not for retail sale' to distinguish from Chapter 29 exclusion (k) for certain packings
• Test for impurities; Chapter 29 note (a) allows minor impurities but requires analytical reports for customs verification