5-Amino-2-(N-butyl-N-ethylamino)toluene sulfate from Mexico
Sulfated toluidine derivative used in masked coupler systems for color films. Provides controlled reactivity for improved color reproduction in photographic processing. Aromatic structure with sulfate salt form qualifies for duty-free treatment.
Duty Rate — Mexico → United States
10%
Rate breakdown
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
Import Tips
• Salt form requires specific assay for sulfate content in customs documentation,Storage condition specifications prevent hydrolysis during transit,Link to specific patent literature for coupler technology strengthens case