o-Phenylenediamine (1,2-Diaminobenzene) from Canada
Pure o-phenylenediamine serves as an intermediate for benzimidazoles, dyes, and fungicides. Classified in HTS 2921.51.30.00 because it matches the products enumerated in additional U.S. note 3 to section VI.
Duty Rate — Canada → United States
16.5%
Rate breakdown
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
• Provide NMR spectra confirming structure per note 3 requirements
• Package to prevent oxidation; stabilizers must comply with note 1(f)
• Declare exact assay percentage to avoid mixture classification