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Home/Compounds/Dye & Pigment/4-Hydroxy-6-methylamino-2-naphthalene sulfonic acid
C11H11NO4S
253.28 g/mol
Dye & Pigment

2-Naphthalenesulfonic acid, 4-hydroxy-6-(methylamino)-

CAS6259-53-6EC228-406-5
Category
Dye & Pigment
Compound Class
Amine
Primary Use
Naphthalene sulfonic acid dye intermediate

This compound is a naphthalene sulfonic acid derivative used as a dye intermediate. It is characterized by an aromatic ring system with amine and sulfonic acid functional groups.

Used as a dye intermediate in the production of dyes and pigments.

Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.

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Related Compounds

SimilarStructure SimilarSimilarity 0.82

4-Hydroxy-7-methylamino-2-naphthalenesulfonic acid

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dye intermediate

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7-(Acetylamino)-4-hydroxy-2-naphthalenesulfonic acid

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Naphthalene sulfonic acid dye intermediate

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6-(4-Carboxyanilino)-4-hydroxy-2-naphthalenesulfonic acid

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Naphthalene sulfonic acid dye intermediate

ApplicationSame Use

Naphthionic acid

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Naphthalene sulfonic acid dye intermediate

ReferenceSame Category

2-naphthol-3,6,8-trisulfonic acid

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Dye intermediate

ReferenceSame Category

2-Amino-4-methyl-6-nitrophenol

CAS6265-07-2

intermediate for dye and pigment synthesis

ReferenceSame Category

N,N-Dimethyl-1,4-phenylenediamine oxalate

CAS62778-12-5

Photographic color developer intermediate

ReferenceSame Category

N,N-diethyl-p-phenylenediamine sulfate

CAS6283-63-2

Photographic color developer

Customs Tariff Classification

The international HS code for 2-Naphthalenesulfonic acid, 4-hydroxy-6-(methylamino)- (CAS 6259-53-6) is 2922.29.

HS code (international, 6-digit)

2922.29

EU CN code (8-digit)

2922 29 00

Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.

Identifiers
IUPAC Name

4-hydroxy-6-(methylamino)naphthalene-2-sulfonic acid

InChIKey

SEHCLGZKORRUKN-UHFFFAOYSA-N

SMILES

CNC1=CC2=C(C=C(C=C2C=C1)S(=O)(=O)O)O

Synonyms (5)
  • N-Methyl-Gamma acid

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