N-Aminopiperidine Hydrochloride from Mexico
N-Aminopiperidine hydrochloride features a hydrazine-like amino group on a heterocyclic ring with aromatic impurities qualifying it as aromatic mixture. However, primarily classified under HTS 2928.00.25.00 if aromatic character dominates per Chapter notes on mixtures of isomers.
Duty Rate — Mexico → United States
110%
Rate breakdown
9903.04.6093.5%Except as provided in heading 9903.04.61, patented pharmaceutical articles as provided for in subdivisions (c) and (d) of U.S. note 40 to this subchapter
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
Import Tips
• Confirm aromatic content via GC-MS for subheading justification
• Register as pharmaceutical intermediate if applicable