3,3'-Diethyloxadicarbocyanine Iodide from Canada
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 — Canada → United States
6.5%
Rate breakdown
9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
Import Tips
• Quaternary ammonium salt classification per Chapter notes; provide spectral data confirming sensitizing range; ensure light-tight packaging