4-Amino-N-ethyl-N-(2-methoxyethyl)-2-methylbenzene Sulfonamide Hydrochloride from China
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 — China → United States
19%
Rate breakdown
9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China
Import Tips
• Sulfonated derivative per Chapter 29 note; hydrochloride salt documentation required; provide dye release kinetics data