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2922.39.45.00/4-Aminophenyl 2-Thienyl Ketone/Mexico

4-Aminophenyl 2-Thienyl Ketone from Mexico

4-Aminophenyl 2-thienyl ketone combines aromatic amino functionality with heterocyclic thienyl ketone. Classified as aromatic amino-ketone under 2922.39.4500 since principal chain is aromatic. Used in pharmaceutical research.

Duty Rate — Mexico → United States

16.5%

Rate breakdown

9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
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Import Tips

• Provide ring analysis confirming aromatic principal chain

• Heterocyclic content <50% keeps aromatic classification

• Research chemical import may require end-use statement