C10H9NO3S
223.25 g/mol
Dye & PigmentDanger
8-AMINONAPHTHALENE-2-SULFONIC ACID
CAS119-28-8EC204-311-4
Category
Dye & Pigment
Compound Class
Amine
Primary Use
Azo dye intermediate
8-Aminonaphthalene-2-sulfonic acid is an organic compound used as an intermediate in the production of azo dyes. It also serves as a reagent for the determination of nitrite formation from nitrate by bacteria.
Manufacture of azo dyesIndicator for nitrite formation from nitrate by bacteria
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 0.75
1-naphthylamine-6-sulfonic acid
CAS119-79-9
dye intermediate
SimilarStructure SimilarSimilarity 0.75
1-Aminonaphthalene-6-sulfonic acid
CAS51548-48-2
Intermediate for azo dyes
ApplicationSame Use
P-anisidine
CAS104-94-9
azo dye intermediate
ReferenceSame Category
4-methyl-3-nitroaniline
CAS119-32-4
dye intermediate
ReferenceSame Category
4-hydroxy-7-(phenylamino)naphthalene-2-sulfonic acid
CAS119-40-4
dye intermediate for azo dyes
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 8-AMINONAPHTHALENE-2-SULFONIC ACID (CAS 119-28-8) is 2921.45.
HS code (international, 6-digit)
2921.45
EU CN code (8-digit)
2921 45 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
8-aminonaphthalene-2-sulfonic acid
InChIKey
QEZZCWMQXHXAFG-UHFFFAOYSA-N
SMILES
C1=CC2=C(C=C(C=C2)S(=O)(=O)O)C(=C1)N
Synonyms (19)
- 1,7-Cleve's acid
- 1-Amino-7-sulfonaphthalene
- 1-naphthylamine-7-sulfonic
- Cleve's acid
- Cleve's theta-acid
- Cleves acid-1,7
Sourcing 8-AMINONAPHTHALENE-2-SULFONIC ACID?
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