Acetoacetsulfanilic Acid Potassium Salt from Canada
Acetoacetsulfanilic acid, potassium salt is a sulfonated aromatic amide salt used in dye coupling and pharmaceutical synthesis. It is explicitly named in HTS 2924.29.23.00, fitting Chapter 29 as an inorganic salt of an organic amide compound per note on salts.
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
• Provide assay confirming potassium salt form to avoid reclassification; label for identification per note (g)
• Pitfall: bulk vs diluted forms may trigger heading 2940 if sugar-related