HFC-134a Pharmaceutical Aerosol Propellant from Mexico
USP-grade HFC-134a used as propellant in metered dose inhalers and nasal sprays. Meets Chapter 29 requirements for chemically defined organic compounds under HTS 2903.45.10.00.
Duty Rate — Mexico → United States
110%
Rate breakdown
9903.04.6096.3%Except as provided in heading 9903.04.61, patented pharmaceutical articles as provided for in subdivisions (c) and (d) of U.S. note 40 to this subchapter
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
• Provide FDA Drug Master File (DMF) references and USP <621> impurity profiles
• Include Certificates of Analysis showing water content <10 ppm and particle matter compliance
• Use temperature-controlled shipping to maintain <50°C storage conditions during transit