Methyl(cyclooctylamino)methylidene phosphonamidic fluoride from Mexico
A specific N-(methyl(cyclooctyl)amino)methylidene phosphonamidic fluoride (cyclooctyl C8 cycloalkyl ≤C10), directly classifiable under HTS 2929.90.50.30. Employed in research for nerve agent analogs or synthetic intermediates. Meets chapter note (a) for separate chemically defined organic compounds.
Duty Rate — Mexico → United States
110%
Rate breakdown
9903.04.6093.5%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
• Obtain export license from origin if Schedule 1 chemical under CWC; ensure DEA/TSA screening for fluoride analogs; use stabilized packaging per chapter note (f)