3,3'-Dichlorobenzidine Dihydrochloride from Mexico
3,3'-Dichlorobenzidine dihydrochloride is a double-salt derivative of a di-chlorinated aromatic polyamine, used in azo pigment synthesis. HTS 2921.59.80 applies as the organic polyamine component determines classification per Chapter 29 salt rules, with halogenation explicitly included.
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
• Provide counterion analysis (HCl content) and mother liquor purity specs
• Strict DEA precursor monitoring if used in controlled substance synthesis paths