4-(2,4-Dichlorophenoxy)butyric Acid (2,4-DB) from Canada
2,4-DB is a selective herbicide, an aromatic carboxylic acid with ether oxygen linkage, used on legumes and soybeans. It fits HTS 2918.99.20 as an 'other' pesticide, chemically defined per chapter (a). Metabolizes to 2,4-D in plants.
Duty Rate — Canada → United States
16.5%
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
• Provide GC/MS analysis confirming >95% purity to meet 'chemically defined' criterion
• Register with EPA as pesticide active ingredient prior to import
• Watch for anti-dusting additives; note 7(g) allows if not rendering specific use