Aminophylline USP Powder from Canada
Aminophylline is a heterocyclic compound containing a xanthine (purine) structure with pyrimidine rings, used as a bronchodilator drug for asthma treatment. It falls under HTS 2933.59.53.00 as an aromatic drug with pyrimidine hetero-atoms in its structure. This classification applies to its chemically defined organic nature per Chapter 29 notes.
Duty Rate — Canada → United States
100%
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
9903.05.900%Articles of aluminum, of steel or of copper or derivative aluminum or steel articles; passenger vehicles (sedans, sport utility vehicles, crossover utility vehicles, minivans and cargo vans) and light trucks; parts of passenger vehicles (sedans, sport utility vehicles, crossover utility vehicles, minivans and cargo vans) and light trucks; medium- and heavy-duty vehicles; parts of medium- and heavy-duty vehicles; wood products; patented pharmaceutical articles; and semiconductor articles, as provided in subdivision (f) of U.S. note 52 to this subchapter
Import Tips
• Obtain FDA Drug Master File and ensure compliance with 21 CFR import regulations for bulk APIs
• Provide Certificate of Analysis (CoA) verifying purity and aromatic structure; avoid misclassification as non-drug