Tetramethylammonium Chloride from Canada
Tetramethylammonium chloride derives from trimethylamine quaternization, used as phase transfer catalyst. While related, classified specifically under HTS 2921.11.00.00 if considered trimethylamine derivative salt; however, typically 292390—note for alternatives.
Duty Rate — Canada → United States
13.7%
Rate breakdown
9903.05.2910%Except for products described in headings 9903.05.85–9903.05.93, articles the product of Canada, as provided for in U.S. note 52 to this subchapter
Import Tips
• Confirm if direct trimethylamine salt or quaternary; molecular formula docs critical
• Pitfall: auto-class to 2923.90 without structure review