p-Phenylenediamine Sulfate from Mexico
p-Phenylenediamine sulfate is a salt derivative used primarily in oxidative hair dyes and rubber antioxidants. Classified under HTS 2921.51.30.00 as it matches products in additional U.S. note 3, specifically salts of p-phenylenediamine.
Duty Rate — Mexico → United States
16.5%
Rate breakdown
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
Import Tips
• Confirm listing in U.S. note 3 with exact CAS (624-57-7) and batch purity documentation
• Label as skin sensitizer; comply with TSCA pre-notice if new use
• Avoid bulk packaging that could trigger mixture classification under chapter exclusions