p-Phenylenediamine Sulfate from Canada
p-Phenylenediamine sulfate is the salt of p-phenylenediamine, a key ingredient in oxidative hair dyes and rubber antioxidants. Classified under HTS 2921.51.5000 as an 'other' salt of phenylenediamine derivatives, per Chapter 29 note on classifying organic salts with the parent amine.
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
• Include salt formation details in import docs; customs may require proof it's derived from listed phenylenediamines
• Comply with TSCA registration for industrial chemicals; declare CAS 624-46-4 accurately
• Watch for anti-dumping duties on hair dye chemicals from certain origins