Diethylenetriamine Pentaacetic Acid (DTPA) Ammonium Salt from Canada
DTPA ammonium salt is a polyamine-polycarboxylic acid chelating agent used in agriculture and radiology. The polyamine backbone classifies it under HTS 2921.29.00 with salts following the organic base per chapter notes.
Duty Rate — Canada → United States
6.5%
Rate breakdown
9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
Import Tips
• Chelate stability constants in specs; agricultural use statements critical; EPA registrations for pesticide applications