Procyazine Technical from Canada
Procyazine, an aromatic triazine-urea hybrid (ureine derivative), acts as a photosynthesis-inhibiting herbicide. It fits HTS 2924.21.1600 as an 'other' pesticide ureine, being a separate chemically defined compound under Chapter 29 notes. Used in cotton weed management.
Duty Rate — Canada → United States
110%
Rate breakdown
9903.04.6093.5%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
9903.05.2910%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
• Include molecular structure certification for customs review
• Permitted odoriferous additives only for identification
• Common error: halogenated impurities trigger derivative notes