Diphenhydramine Hydrochloride from Canada
Diphenhydramine HCl, an ethanolamine derivative with aromatic oxygen-function amino structure, functions as an antihistamine drug. HTS 2922.49.26.00 covers it as an 'other' aromatic amino-acid salt drug. Chapter 29(B) supports ester/alcohol salt placement here.
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
• Provide BP/USP monograph compliance certificate (CAS 147-24-0)
• Declare exact isomer purity to fit Chapter 29(b) mixtures exclusion
• Avoid bulk packaging over 25kg to prevent industrial chemical scrutiny