p-Hydroxyphenyl Glycine Methyl Ester Hydrochloride
Hydrochloride salt of the methyl ester derived from listed (R)-α-Amino-4-hydroxybenzene acetic acid, classifiable under HTS 2922.50.0700 per ester/salt rules in chapter note 3(A)(B). Used in peptide synthesis and pharmaceutical production.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If carboxamide function predominates
Carboxylic acid amides/aromatic classify separately from amino-acid esters.
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Import Tips & Compliance
• Ester classifies with parent acid per Ch. 29 note 3(A); provide hydrolysis data linking to listed compound
• Controlled substance precursor monitoring; DEA declaration if applicable
• Avoid aqueous import; methanol residue <0.1% required
Related Products under HTS 2922.50.07.00
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.
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.