2-Amino-N-ethylbenzenesulfonanilide from Canada
This complex sulfonamide derivative is explicitly named in HTS 2935.90.10.00, featuring amino, ethyl, and anilino substitutions on benzenesulfonamide core. Classified as a separate chemically defined organic compound per Chapter 29 note (a). Serves as intermediate for dyes and pharmaceuticals.
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
• Detailed synthetic pathway documentation proves status as separate compound vs. mixture
• REACH/TSCA registration status must be declared for chemical substance compliance
• Special packaging requirements for light-sensitive sulfonamide intermediates