m-Sulfaminopyrazolone (m-Sulfamido-phenyl methyl pyrazolone) from Canada
This compound features a sulfamido group at the meta position of a phenyl ring attached to a methylpyrazolone structure. Explicitly listed under HTS 2933.19.18.00 for its aromatic pyrazole ring system. Commonly used in the production of reactive dyes for textiles.
Duty Rate — Canada → United States
10%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Import Tips
• Verify sulfamido group integrity via NMR spectroscopy in documentation; ensure packaging prevents moisture absorption; declare as potential skin irritant