C10H6Na2O8S2
364.3 g/mol
Dye & PigmentWarning
2,7-Naphthalenedisulfonic acid, 3,6-dihydroxy-, disodium salt
CAS7153-21-1EC230-499-2
Category
Dye & Pigment
Compound Class
Aromatic
Primary Use
naphthalene disulfonate dye intermediate
This compound is a disodium salt of a dihydroxynaphthalenedisulfonic acid, primarily used as a dye intermediate. It is significant in the production of naphthalene disulfonate dyes.
dye intermediatenaphthalene disulfonate dye manufacturing
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 0.74
Disodium 3-hydroxynaphthalene-2,7-disulfonate
CAS135-51-3
Dye intermediate
ReferenceSame Category
Reactive Blue 160
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Reactive dye for textiles
ReferenceSame Category
2-Naphthalenesulfonic acid, 7-(acetylamino)-4-hydroxy-3-((4-((2-(sulfooxy)ethyl)sulfonyl)phenyl)azo)-, sodium salt
CAS71902-15-3
reactive dye for textile coloring
ReferenceSame Category
Alizarin
CAS72-48-0
Dye and pigment precursor
ReferenceSame Category
Trypan blue sodium
CAS72-57-1
biological stain and dye
Safety Reference
Warning
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
Customs Tariff Classification
The international HS code for 2,7-Naphthalenedisulfonic acid, 3,6-dihydroxy-, disodium salt (CAS 7153-21-1) 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
disodium;3,6-dihydroxynaphthalene-2,7-disulfonate
InChIKey
TVCXTRSVWGUSPY-UHFFFAOYSA-L
SMILES
C1=C2C=C(C(=CC2=CC(=C1O)S(=O)(=O)[O-])S(=O)(=O)[O-])O.[Na+].[Na+]
Synonyms (11)
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