7-(Methylamino)-1-naphthol-3-sulfonic Acid
Naphthol isomer specifically enumerated in HTS 2922.29.10.00. Amino-naphthol with sulfonic acid and methylamino groups. Essential for azoic dye coupling components.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If similar non-enumerated naphthols
Only specifically named naphthols in .10; others to residual category
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Import Tips & Compliance
• Isomer purity >98% by HPLC; sodium salt common—declare form; dye coupling activity test
Related Products under HTS 2922.29.10.00
2-Amino-4-nitrophenol
2-Amino-4-nitrophenol is a specific amino-phenol compound with both amino and hydroxyl oxygen functions, explicitly listed under HTS 2922.29.10.00. It is primarily used as an intermediate in the synthesis of dyes, pharmaceuticals, and agrochemicals. This classification applies to the pure chemical compound without additional oxygen functions beyond the amino and phenolic groups.
m-Aminophenol
m-Aminophenol (3-aminophenol) is a meta-substituted amino-phenol explicitly enumerated in HTS 2922.29.10.00, featuring amino and phenolic OH groups. It serves as a key intermediate for dyestuffs, rubber antioxidants, and pharmaceuticals. Falls under this code as an amino-phenol without multiple oxygen functions.
2-Amino-4-chlorophenol Hydrochloride
This is the hydrochloride salt of 2-amino-4-chlorophenol, specifically listed in HTS 2922.29.10.00 as an amino-phenol salt. The salt form maintains classification with the parent amino-phenol per chapter note 3(C)(1). Used in synthesis of pharmaceuticals and dyes.
2-Amino-6-chloro-4-nitrophenol
Explicitly named in HTS 2922.29.10.00, this tri-substituted amino-phenol contains chloro and nitro groups alongside amino and phenolic functions. Primarily an intermediate for azo dyes and pesticides. Classified here despite multiple substituents due to specific enumeration.
4-Amino-o-cresol
4-Amino-o-cresol (2-methyl-4-aminophenol) is specifically listed under HTS 2922.29.10.00 as an amino-phenol derivative. Used in hair dye formulations and photographic chemicals. The methyl substitution doesn't alter its amino-phenol classification.
2-Amino-p-cresol
2-Amino-p-cresol, explicitly in HTS 2922.29.10.00, is a methylated amino-phenol used primarily in oxidative hair dyes. Its structure features amino group ortho to phenolic OH with para-methyl. Meets chapter 29 requirements for chemically defined oxygen-function amino-compounds.