4'-Amino-2'-hydroxychalcone from Mexico
4'-Amino-2'-hydroxychalcone is an aromatic amino-ketone chalcone derivative with enone functionality counted as single oxygen type, classified in HTS 2922.39.2500, note 3. Used in research for anti-inflammatory and anticancer agents.
Duty Rate — Mexico → United States
16.5%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• Declare as research chemical with end-use statement; ensure no dual-use export controls apply
• Pitfall: enone misclassified as multi-oxygen—notes restrict to listed functions