4-Amino-N-ethyl-N-(2-methoxyethyl)-2-methylbenzene Sulfonamide Hydrochloride from Canada
Used as a developer incorporation releaser (DIR) in color negative films for image enhancement and sharpness. The sulfonamide functionality provides controlled dye release during processing. As a specialized photographic chemical, classified under HTS 2933.99.24.00.
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
• Sulfonated derivative per Chapter 29 note; hydrochloride salt documentation required; provide dye release kinetics data