Aminophylline USP Powder from Canada
Aminophylline is a theophylline derivative containing a hydrogenated pyrimidine ring structure, used as a bronchodilator for respiratory conditions. It falls under HTS 2933.59.95.00 as a heterocyclic compound with nitrogen hetero-atoms only, specifically in the 'other' category for pyrimidine ring compounds. This classification applies to its pure chemical form for pharmaceutical use.
Duty Rate — Canada → 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 Certificate of Analysis (CoA) confirming purity and pyrimidine structure to avoid reclassification
• Ensure DEA compliance if used in controlled formulations; common pitfall is missing pharmacopeia reference
• Declare as bulk API only; retail packaging shifts to Chapter 30