o-Phenylenediamine Dihydrochloride from Canada
o-Phenylenediamine dihydrochloride is the salt form of o-phenylenediamine, a key aromatic polyamine used in dye and pharmaceutical synthesis. It falls under HTS 2921.51.30.00 as a derivative salt of o-phenylenediamine described in additional U.S. note 3 to section VI, which covers specific listed organic compounds.
Duty Rate — Canada → United States
16.5%
Rate breakdown
9903.05.2910%Except for products described in headings 9903.05.85–9903.05.93, articles the product of Canada, as provided for in U.S. note 52 to this subchapter
Import Tips
• Verify the product matches exactly the chemical description in additional U.S. note 3 to section VI for proper classification
• Provide detailed chemical analysis certificates (CAS number 615-28-1) and purity specs to avoid reclassification
• Ensure SDS and transport docs note it's a hazardous substance under DOT regulations