Captopril from Canada
Captopril, (2S)-1-[(2S)-3-mercapto-2-methylpropionyl]-L-proline, contains a mercaptocarboxylic acid side chain. Despite complex structure, classified under HTS 2930.90.4920 as its mercapto acid functionality defines the organo-sulfur nature per Chapter 29. Pharmaceutical API for hypertension treatment.
Duty Rate — Canada → United States
4.2%
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
• FDA DMF and USP certificate mandatory; verify chiral purity >99.5% ee
• Controlled substance precursor monitoring; DEA import permit may apply
• Classify bulk API only; tablets move to Chapter 30 pharmaceuticals