Perfluorotributylamine from Mexico
(C4F9)3N, perhalogenated tertiary amine with acyclic fluorocarbon chains. 2903.78.00.00 as perhalogenated hydrocarbon derivative; nitrogen secondary function. Oxygen-free heat transfer fluid.
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
• Density 1.88 g/mL; volumetric vs gravimetric customs valuation
• Confirm no C-H bonds via 19F-NMR for perhalogenation proof
• Excellent dielectric; common in semiconductor manufacturing imports