Diphenhydramine Hydrochloride USP from Canada
Diphenhydramine HCl is an ethanolamine ether derivative of amino-phenol, HCl salt, used as bulk drug for antihistamine and sleep aids. Chapter 29 notes place salts with parent oxygen-function amino-compounds.
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 heavy metals and residual solvents certificates
• Declare specifically as HCl salt to avoid base classification