N,N'-(Dithiodi-2,1-phenylene)bisbenzamide from Canada
This disulfide-linked bisbenzamide compound features two aromatic rings connected via S-S bond with amide functionalities, used in pharmaceutical intermediates and polymer chemistry. Explicitly named in HTS 2930.90.26.00 as aromatic organo-sulfur compound per chapter 29 definitions. The dithio structure provides characteristic sulfur-carbon linkages.
Duty Rate — Canada → United States
10%
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
• Submit molecular structure diagrams and synthesis route in entry docs; test for heavy metal contaminants
• Use UN-approved packaging for oxidizable disulfides
• Comply with FDA import alerts if destined for drug synthesis