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.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If for pharmaceutical intermediates
Medicinal amino-phenols classified under specific pharmaceutical provisions.
If as primary aromatic amine
Nitrogen-function classification takes precedence.
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Import Tips & Compliance
• Certify pharmaceutical grade purity (>99%) for photographic applications
• Use light-proof packaging to prevent premature oxidation
• Avoid pharmaceutical classification by specifying developer usage
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.
Hydroquinone Monomethyl Ether (MEHQ)
MEHQ inhibits polymerization in photographic gelatin emulsions and serves as an antioxidant in developer solutions. This methoxyhydroquinone derivative stabilizes aromatic compounds during processing. Classified under HTS 2934.99.20.00.