C16H13NO4S
315.3 g/mol
Dye & PigmentDanger
6-Anilino-4-hydroxynaphthalene-2-sulphonic acid
CAS119-19-7EC204-305-1
Category
Dye & Pigment
Compound Class
Amine
Primary Use
dye intermediate
6-Anilino-4-hydroxynaphthalene-2-sulphonic acid is a sulfonic acid derivative of naphthalene used as an intermediate in the production of dyes and pigments.
dye intermediate
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 0.84
4-Hydroxy-6-(3-sulphoanilino)naphthalene-2-sulphonic acid
CAS25251-42-7
Dye intermediate
SimilarStructure SimilarSimilarity 0.82
4-hydroxy-7-(phenylamino)naphthalene-2-sulfonic acid
CAS119-40-4
dye intermediate for azo dyes
SimilarStructure SimilarSimilarity 0.78
6-(4-Carboxyanilino)-4-hydroxy-2-naphthalenesulfonic acid
CAS5855-84-5
Naphthalene sulfonic acid dye intermediate
SimilarStructure SimilarSimilarity 0.78
4-(8-Hydroxy-6-sulfonaphthalen-2-ylamino)benzoic acid
CAS71486-49-2
pharmaceutical intermediate
ReferenceSame Category
1,7-cleve'S acid
CAS119-28-8
Azo dye intermediate
ReferenceSame Category
4-methyl-3-nitroaniline
CAS119-32-4
dye intermediate
ReferenceSame Category
5-Amino-2-[(4-aminophenyl)amino]benzenesulfonic acid
CAS119-70-0
dye intermediate
ReferenceSame Category
4-Nitro-4'-aminostilbene-2,2'-disulfonic acid
CAS119-72-2
stilbene dye intermediate
Safety Reference
Danger
H314Causes severe skin burns and eye damage
Customs Tariff Classification
The international HS code for 6-Anilino-4-hydroxynaphthalene-2-sulphonic acid (CAS 119-19-7) 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
6-anilino-4-hydroxynaphthalene-2-sulfonic acid
InChIKey
QEAYLNJEDDOYNQ-UHFFFAOYSA-N
SMILES
C1=CC=C(C=C1)NC2=CC3=C(C=C(C=C3C=C2)S(=O)(=O)O)O
Synonyms (14)
- Gamma acid, N-phenyl-
- Phenyl gamma-Acid
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