4-Aminophenyl 2-Thienyl Ketone from Germany
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 — Germany → United States
6.5%
Rate breakdown
9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
Import Tips
• Provide ring analysis confirming aromatic principal chain
• Heterocyclic content <50% keeps aromatic classification
• Research chemical import may require end-use statement