o-Phenylenediamine Dihydrochloride from Canada
The dihydrochloride salt of o-phenylenediamine used in pharmaceutical synthesis and analytical reagents. Although base form is named, chapter notes place salts with the parent aromatic polyamine in HTS 2921.51.10.00.
Duty Rate — Canada → United States
16.5%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Import Tips
• Confirm stoichiometric HCl content to validate salt classification
• Include water content analysis as salts are hygroscopic
• Segregate from strong oxidizers per DOT hazardous material regulations