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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