Asulam Sodium Salt from Japan
The sodium salt form of Methyl-4-aminobenzenesulfonylcarbamate (Asulam sodium salt) remains classified under HTS 2935.90.06.00 per Chapter 29 note 3(C)(1). Inorganic salts of sulfonamide compounds follow the classification of the parent organic compound. Used interchangeably with Asulam in herbicide applications requiring water solubility.
Duty Rate — Japan → United States
21%
Rate breakdown
9903.04.628.5%Patented pharmaceutical articles that are the product of Japan, of a European Union member country, of South Korea, of Switzerland, or of Liechtenstein as provided for in subdivisions (c) and (f) of U.S. note 40 to this subchapter
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• Certificate of analysis must specify 'Asulam sodium salt' with counterion content to confirm Chapter 29 note 3(C)(1) applicability
• Avoid importing with formulation additives; pure salt maintains 2935 classification while formulated products shift to 3808
• REACH registration as Asulam derivative required in EU; US EPA may require separate registration from acid form