2,4-Diaminoanisole Sulfate from Canada
This diamine derivative of methoxyaniline, supplied as sulfate salt, falls under HTS 2921.42.90.00 per classification rules for amine salts. Used in polymer synthesis and hair dye intermediates.
Duty Rate — Canada → United States
110%
Rate breakdown
9903.04.6093.5%Except as provided in heading 9903.04.61, patented pharmaceutical articles as provided for in subdivisions (c) and (d) of U.S. note 40 to this subchapter
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
• Salt form requires analysis certificate showing complete protonation of amine groups
• REACH registration documents mandatory for EU-origin material regardless of destination
• Darkens on exposure to air; ship under nitrogen with stabilizer per chapter note 2(f)