C10H6Na2O6S2
332.3 g/mol
Dye & PigmentWarning
Disodium naphthalene-2,6-disulphonate
CAS1655-45-4EC216-735-7
Category
Dye & Pigment
Compound Class
Aromatic
Primary Use
Dye intermediate
Disodium naphthalene-2,6-disulphonate is a sulfonated naphthalene derivative commonly used as an intermediate in the production of dyes and pigments. It is a salt form of the disulfonic acid and is characterized by its aromatic ring system and polar sulfonate groups.
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
2,7-Naphthalenedisulfonic acid disodium salt
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Naphthalene sulfonate intermediate for dyes
SimilarStructure SimilarSimilarity 0.81
Sodium 2-naphthalenesulfonate
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Surfactant and hydrotrope agent
SimilarStructure SimilarSimilarity 0.74
Potassium 6-hydroxy-2-naphthalenesulfonate
CAS833-66-9
dye intermediate
SimilarStructure SimilarSimilarity 0.74
2-naphthol-6-sulfonic acid sodium
CAS135-76-2
dye intermediate
ApplicationSame Use
Disodium 3-hydroxynaphthalene-2,7-disulfonate
CAS135-51-3
Dye intermediate
ApplicationSame Use
4-Hydroxy-6-(3-sulphoanilino)naphthalene-2-sulphonic acid
CAS25251-42-7
Dye intermediate
ApplicationSame Use
2,4-Dimethylaniline-6-sulfonic acid
CAS88-22-2
Dye intermediate
ApplicationSame Use
2-Amino-4,8-naphthalenedisulfonic acid
CAS131-27-1
Dye intermediate
Safety Reference
Warning
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
Customs Tariff Classification
The international HS code for Disodium naphthalene-2,6-disulphonate (CAS 1655-45-4) is 2904.10.
HS code (international, 6-digit)
2904.10
EU CN code (8-digit)
2904 10 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
disodium;naphthalene-2,6-disulfonate
InChIKey
WZZLWPIYWZEJOX-UHFFFAOYSA-L
SMILES
C1=CC2=C(C=CC(=C2)S(=O)(=O)[O-])C=C1S(=O)(=O)[O-].[Na+].[Na+]
Synonyms (8)
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