Cimetidine Base from Canada
Cimetidine is an imidazole-containing histamine H2-receptor antagonist used to treat peptic ulcers and GERD. As a bulk pharmaceutical chemical with unfused imidazole ring, it falls under HTS 2933.29.90.00 for other heterocyclic compounds with nitrogen hetero-atoms only.
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
• Include spectral analysis (NMR, IR) confirming imidazole ring presence for Customs verification
• Register as bulk drug substance with FDA prior to import to avoid detention
• Label containers with CAS number 51481-61-9 and 'For Manufacturing Use Only' to prevent retail classification