3,3'-Diethyloxadicarbocyanine Iodide from Mexico
A cyanine dye used as a spectral sensitizer for panchromatic photographic emulsions, extending silver halide sensitivity to red light. This heterocyclic quaternary salt is critical for color-corrected films. Qualified for HTS 2933.99.24.00 as photographic chemical.
Duty Rate — Mexico → United States
16.5%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• Quaternary ammonium salt classification per Chapter notes; provide spectral data confirming sensitizing range; ensure light-tight packaging