Medical Grade HFC-143a Propellant from Canada
Pharmaceutical-grade 1,1,1-trifluoroethane (HFC-143a) for metered dose inhalers and medical aerosols. Falls under HTS 2903.44.1020 as a pure chemically defined organic compound specifically enumerated in the HFC-143a tariff provision.
Duty Rate — Canada → United States
13.7%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• File Drug Master File (DMF) with FDA; provide USP/EP monograph compliance certificates
• Use validated cleaning procedures documentation to prove no cross-contamination from other HFCs
• Include sterility validation if for sterile inhalers; maintain cold chain (-20°C) during ocean transport