p-Aminodimethylaniline Hydrochloride
p-Aminodimethylaniline hydrochloride, a derivative of p-phenylenediamine, functions as a photographic developing agent in black-and-white film processing. It qualifies under HTS 2921.51.20.00 as a designated photographic chemical consisting of aromatic polyamine salts. The compound adheres to Chapter 29 definitions for separate chemically defined amine-function products.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If classified as other aromatic diamine derivatives without photographic designation
Non-photographic aromatic polyamines fall under the broader 2921.59 category.
If for use as synthetic dye intermediate rather than pure photographic chemical
Chapter notes exclude coloring matter derivatives, classifying them in Chapter 32.
If containing additional heterocyclic nitrogen functions
Other organic compounds with nitrogen functions classify in heading 2942.
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Import Tips & Compliance
• Provide evidence of use in photographic emulsions via end-user letters; confirm hydrochloride salt purity >98% for proper classification; beware of anti-dusting agents that could invoke Chapter 29 note (g)
Related Products under HTS 2921.51.20.00
4-Nitro-o-phenylenediamine
4-Nitro-o-phenylenediamine is a derivative of o-phenylenediamine used as an intermediate in the production of photographic developers and dyes. It falls under HTS 2921.51.20.00 as a photographic chemical within the category of aromatic polyamine derivatives specifically designated for photography. This compound's amine functions and aromatic structure align with chapter 29 provisions for chemically defined organic compounds.
N,N-Diethyl-p-phenylenediamine Sulfate
N,N-Diethyl-p-phenylenediamine sulfate is a p-phenylenediamine derivative serving as a color developing agent in color photographic processing. Classified under HTS 2921.51.20.00 for its role as a photographic chemical and aromatic polyamine salt. Meets Chapter 29 requirements for amine-function derivatives used in specialized chemical applications.
2,4-Diaminotoluene Sulfate
2,4-Diaminotoluene sulfate serves as an intermediate and stabilizer in photographic chemical formulations, particularly for dye developers. Falls under HTS 2921.51.20.00 as a diaminotoluene derivative designated for photographic applications. Complies with Chapter 29 provisions for salts of aromatic polyamines.
N-(2-Aminoethyl)-p-phenylenediamine
N-(2-Aminoethyl)-p-phenylenediamine is a substituted p-phenylenediamine derivative used in color photographic coupler synthesis. Classified in HTS 2921.51.20.00 for its designation as a photographic chemical within aromatic polyamine derivatives. Aligns with Chapter 29 note on amine-function compounds.
p-Phenylenediamine Dihydrochloride
p-Phenylenediamine dihydrochloride acts as a primary developing agent in photographic film processing and is a key aromatic polyamine salt. It merits HTS 2921.51.20.00 classification as a designated photographic chemical. Satisfies Chapter 29 criteria for salts of amine-function compounds.
o-Phenylenediamine Dihydrochloride
o-Phenylenediamine dihydrochloride serves as a photographic chemical intermediate for dye synthesis and film sensitizers. Falls under HTS 2921.51.20.00 as an 'other' derivative designated for photography among phenylenediamine salts. Conforms to Chapter 29 salt classification rules.