1-Bromo-1-chloro-2,2-difluoroethane from Mexico
A mixed halogenated ethane used as an intermediate in pharmaceutical manufacturing. Classified in HTS 2903.79.90.70 for acyclic hydrocarbons with bromine, chlorine, and fluorine halogens, not matching more specific provisions.
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
• Pharma-grade imports require FDA Drug Master File references and GMP certificates
• Specify batch impurity profiles (<0.1% oxygenates) to maintain Chapter 29 purity status