2,4-Dichloro-5-Sulfamoylbenzoic Acid from Canada
2,4-Dichloro-5-sulfamoylbenzoic acid serves as a key intermediate in sulfonamide herbicide synthesis and pharmaceutical manufacturing. This compound is explicitly listed under HTS 2935.90.13.00 due to its sulfonamide functional group. Typically imported as technical grade powder for downstream chemical processing.
Duty Rate — Canada → United States
110%
Rate breakdown
9903.04.60100%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
• REACH Annex XVII restrictions may apply; verify non-inclusion on candidate list
• Melting point specification (248-252°C) confirms identity in Certificate of Analysis
• Classified as sulfonamide, not carboxylic acid (2916), per Chapter 29 note precedence rules