Glufosinate Acid Technical Powder from Mexico
Pure glufosinate acid (2-amino-4-[hydroxy(methyl)phosphonoyl]butanoic acid) in technical powder form serves as the base active ingredient for herbicide production. Classified under HTS 2931.49.0010 due to its specific organo-phosphorus structure as a non-halogenated derivative. Imported primarily by agrochemical manufacturers for salt formation and formulation.
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
• Include certificate of analysis verifying chemical structure and >98% purity to confirm HTS classification
• Declare as toxic substance (Class 6.1) with phosphonate safety data; avoid bulk packaging without stabilizers
• Monitor for moisture content as it affects stability; improper storage leads to degradation and quality issues