1-Naphthol
Aromatic coupler used in color photographic development for magenta dye formation. Reacts with oxidized developing agents to produce color images in chromogenic films. HTS 2934.99.20.00 includes such color coupling chemicals.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If general naphthol dye intermediate
Naphthols without photographic designation under phenols heading 2907.
If disperse dye component
Synthetic coloring matter classification in heading 3204.
If industrial chemical synthesis
Aromatic amine derivatives for general manufacturing.
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Import Tips & Compliance
• Include color coupler reaction mechanism documentation
• Use nitrogen-flushed packaging to prevent aerial oxidation
• Prevent dye intermediate classification through processing application proof
Related Products under HTS 2934.99.20.00
4-Phenylphenol
4-Phenylphenol is an aromatic heterocyclic compound used as a key photographic chemical in the development of silver halide films and papers. It functions as a developing agent or auxiliary in photographic processing solutions due to its aromatic structure and chemical reactivity. Classified under HTS 2934.99.20.00 as an aromatic photographic chemical.
1-Phenyl-3-pyrazolidinone (Phenidone)
Phenidone is a pyrazolone derivative serving as a superadditive developing agent in black-and-white photographic developers. This aromatic heterocyclic compound accelerates silver halide reduction while minimizing fog formation. HTS 2934.99.20.00 covers it specifically as a photographic chemical.
Sodium 4-Methylbenzenesulfinate
This aromatic sulfinic acid salt serves as a photographic chemical in fixing baths and bleach regeneration processes. It functions as a sulfinate source in silver halide processing chemistry. Falls under HTS 2934.99.20.00 as an aromatic heterocyclic photographic chemical.
2,4-Diaminophenol Dihydrochloride (Rodinal Developer)
Used in high-acutance photographic developers like Rodinal, this aromatic compound reduces silver halides while providing fine grain structure. Its diaminophenol structure makes it ideal for aerial and technical film processing. Classified as aromatic photographic chemical under HTS 2934.99.20.00.
Triethanolamine Hydroxyhydroquinone
TEHQ serves as a silver halide preservative and stabilizer in photographic emulsions and developers. This aromatic derivative prevents oxidation during film storage and processing. HTS 2934.99.20.00 specifically includes such photographic stabilizers.
p-Aminophenol Hydrochloride
Classic photographic developing agent used in metol-hydroquinone developers for fine grain films. The para-amino structure provides controlled silver reduction rates. Aromatic photographic chemical under HTS 2934.99.20.00.