C10H7NaO4S
246.22 g/mol
Dye & PigmentWarning
Sodium 6-hydroxynaphthalene-2-sulfonate
CAS135-76-2EC205-218-1
Category
Dye & Pigment
Compound Class
Aromatic
Primary Use
dye intermediate
Sodium 6-hydroxynaphthalene-2-sulfonate is a chemical compound used primarily as a dye intermediate in the production of various dyes and pigments. It features a naphthalene ring system with both hydroxyl and sulfonate functional groups, contributing to its utility in industrial synthesis.
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
StrongSame Parent
Potassium 6-hydroxy-2-naphthalenesulfonate
CAS833-66-9
dye intermediate
SimilarStructure SimilarSimilarity 0.74
2,6-Naphthalenedisulfonic acid disodium salt
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Dye intermediate
ReferenceSame Category
2-aminobenzothiazole
CAS136-95-8
Azo dye intermediate
ReferenceSame Category
2,4,5-trimethylaniline
CAS137-17-7
Manufacture of dyes and organic chemicals
ReferenceSame Category
1,3-Benzenedisulfonic acid, 4,6-diamino-
CAS137-50-8
dye intermediate
ReferenceSame Category
4-amino-1,3-benzenedisulfonic acid
CAS137-51-9
intermediate for dyes and pigments
Referencestereoisomer of
2-naphthol-6-sulfonic acid
CAS93-01-6
Azo dye intermediate
Safety Reference
Warning
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
Customs Tariff Classification
The international HS code for Sodium 6-hydroxynaphthalene-2-sulfonate (CAS 135-76-2) is 2908.99.
HS code (international, 6-digit)
2908.99
EU CN code (8-digit)
2908 99 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
sodium 6-hydroxynaphthalene-2-sulfonate
InChIKey
ZPWQALCOMQRMRK-UHFFFAOYSA-M
SMILES
C1=CC2=C(C=CC(=C2)S(=O)(=O)[O-])C=C1O.[Na+]
Synonyms (14)
- Allura Red Impurity 1
- Schaeffer's Acid Sodium Salt
- Sodium 2-Naphthol-6-sulfonate
- schaeffer's salt
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