3,3'-Diethyloxadicarbocyanine Iodide
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.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If general synthetic dye use
Cyanine dyes outside photography classify as synthetic organic coloring matter.
If additional heterocyclic rings
Complex polymethine structures with extra rings may classify in 2934.
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Import Tips & Compliance
• Quaternary ammonium salt classification per Chapter notes; provide spectral data confirming sensitizing range; ensure light-tight packaging
Related Products under HTS 2933.99.24.00
4-Methyl-1-phenyl-2-pyrazolin-5-one
This aromatic heterocyclic compound with nitrogen hetero-atoms serves as a key photographic chemical used in color film development processes. It functions as a developing agent in the formation of magenta dye images during photographic processing. Classified under HTS 2933.99.24.00 due to its specific use in photography and aromatic heterocyclic structure.
1-Phenyl-3-pyrazolidinone (Phenidone)
Phenidone is a pyrazolidinone derivative used as a superadditive developing agent in black-and-white photographic films and papers. This aromatic nitrogen-heterocycle enhances development speed when combined with other agents. It qualifies for HTS 2933.99.24.00 as a specialized photographic chemical.
3-Methyl-1-p-sulfophenyl-5-pyrazolone
A sulfonic acid derivative of pyrazolone used as a coupler in color photographic development to produce yellow dye images. This aromatic heterocyclic compound with nitrogen hetero-atoms is essential for multilayer color film processing. Its photographic specificity places it under HTS 2933.99.24.00.
2-Amino-5-diethylaminotoluene Hydrochloride
This aromatic amine serves as a color developer in photographic processing, particularly for dye diffusion transfer processes. The hydrochloride salt form maintains stability for industrial use in imaging chemistry. Classified as a photographic chemical under HTS 2933.99.24.00 per Chapter 29 salt classification rules.
N-(2-Cyanoethyl)-N-ethyl-p-toluidine
A cyanoethylated aromatic amine used as a developer in instant color photography systems. This nitrogen-heterocycle derivative participates in dye release mechanisms during image formation. Its specific photographic application qualifies it for HTS 2933.99.24.00.
5-Nitrobenzimidazole
A nitro-substituted benzimidazole used in photographic antifoggants and stabilizers for silver halide emulsions. This aromatic fused heterocyclic system prevents unwanted fog during film development. Classified under HTS 2933.99.24.00 as a photographic chemical per Chapter 29 nitro derivative provisions.