3,3'-Dichlorobenzidine Dihydrochloride from Mexico
3,3'-Dichlorobenzidine dihydrochloride is a diamine salt classified under HTS 2921.59.80.10 as an aromatic polyamine derivative and its salt. It is primarily used as a key intermediate in the production of diaminobenzidine-based azo pigments and dyes.
Duty Rate — Mexico → 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
9903.05.5510%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 detailed chemical analysis certificates confirming purity and identity as 3,3'-Dichlorobenzidine dihydrochloride to match HTS 2921.59.80.10 specification
• Verify compliance with TSCA regulations and obtain EPA pre-manufacture notice if required for chemical import
• Avoid misclassification by ensuring product is imported as pure chemical substance, not pre-mixed dye formulation