3,4-Diaminophenetole Dihydrogen Sulfate
3,4-Diaminophenetole dihydrogen sulfate is a chemically defined aromatic amino-alcohol-phenol compound with oxygen function, explicitly listed under HTS 2922.50.0700. It is primarily used as an intermediate in the synthesis of oxidative hair dyes for permanent coloring applications.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If imported primarily as finished hair colorant rather than chemical intermediate
Aminohydroxynaphthalenes and derivatives used as dyes fall under 2921, but chapter note excludes coloring matter from Ch. 29.
If for industrial bulk packaging without consumer safety stabilizers
Heterocyclic compounds with nitrogen not specifically listed may shift if ring structure predominates over amino-oxygen function.
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Import Tips & Compliance
• Provide detailed chemical analysis and CAS number (615-05-4) on commercial invoice to confirm classification as listed compound
• Ensure SDS and purity certificates (>98%) to meet REACH/ TSCA registration requirements for cosmetic intermediates
• Avoid misclassification as general dye by specifying intermediate use, not finished coloring matter (excl
• Ch. 32)
Related Products under HTS 2922.50.07.00
2-Nitro-5-[(2,3-Dihydroxy)propoxy]-N-methyl Aniline
This nitro-substituted aromatic aniline derivative with dihydroxypropoxy oxygen function is explicitly named in HTS 2922.50.0700 as an oxygen-function amino-compound. Commonly employed as a dye coupler in oxidative permanent hair color formulations.
2-Nitro-5-(2-Hydroxyethoxy)-N-methyl Aniline
An aromatic amino compound featuring nitro and hydroxyethoxy oxygen functions, specifically enumerated under HTS 2922.50.0700. Serves as an oxidation base or coupler in professional permanent hair coloring systems.
4-(2-Hydroethoxy)-1,3-Phenylene Diamine Dihydrochloride
Dihydrochloride salt of a diaminobenzene derivative with hydroxyethoxy function, explicitly covered by HTS 2922.50.0700 as aromatic oxygen-function amino-compound. Key developer in low-ammonia permanent hair dyes.
3-Methoxy-4-[(2-Hydroxyethyl)amino] Nitrobenzene
Nitrobenzene derivative with methoxy and hydroxyethylamino functions, listed under HTS 2922.50.0700 for aromatic amino compounds with oxygen function. Utilized as a direct dye or coupler in semi-permanent hair colorants.
4-[(2-Hydroxyethyl)amino]-3-Nitrophenol
Nitrophenol compound with hydroxyethylamino substituent, specifically named in HTS 2922.50.0700 as amino-acid-phenol type oxygen-function compound. Employed in oxidative hair dye systems for red-brown shades.
(R)-α-Amino-4-Hydroxybenzene Acetic Acid (D-(-)-p-Hydroxyphenyl Glycine)
Chiral aromatic amino acid featuring hydroxy and carboxylic acid oxygen functions, explicitly listed under HTS 2922.50.0700. Pharmaceutical intermediate for synthesis of antibiotics like amoxicillin.