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
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• Verify sulfamido group integrity via NMR spectroscopy in documentation; ensure packaging prevents moisture absorption; declare as potential skin irritant