Research Grade CFC-114 for Atmospheric Studies from Mexico
High-purity CFC-114 for scientific research on stratospheric ozone is classified under HTS 2903.77.00.30 as a halogenated derivative of acyclic hydrocarbons. Chapter 29 notes support classification of pure organic compounds for lab use.
Duty Rate — Mexico → United States
13.7%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Import Tips
• Include university/government research letters to expedite customs review
• Declare small quantities (<1kg) for lab use to minimize scrutiny
• Avoid solvent dilutions beyond note (e) transport allowances