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Home/Compounds/Industrial Chemical/2,7-Naphthalenedisulfonic acid disodium salt
C10H6Na2O6S2
332.3 g/mol
Industrial ChemicalWarning

Disodium 2,7-naphthalenedisulfonate

CAS1655-35-2EC216-733-6
Category
Industrial Chemical
Compound Class
Aromatic
Primary Use
Naphthalene sulfonate intermediate for dyes

Disodium 2,7-naphthalenedisulfonate is an industrial chemical used as a naphthalene sulfonate intermediate in the production of dyes. It is a disodium salt of naphthalene-2,7-disulfonic acid, featuring two aromatic rings and sulfonate groups.

Naphthalene sulfonate intermediate for dyes

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

2,6-Naphthalenedisulfonic acid disodium salt

CAS1655-45-4

Dye intermediate

SimilarStructure SimilarSimilarity 0.77

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Surfactant and hydrotrope agent

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Emulsifier and ore flotation agent

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Industrial polymer production

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ReferenceSame Category

Triethyl orthobenzoate

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orthoester intermediate for organic synthesis

Safety Reference

Harmful
Harmful
Warning
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation

Customs Tariff Classification

The international HS code for Disodium 2,7-naphthalenedisulfonate (CAS 1655-35-2) 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-2,7-disulfonate

InChIKey

XOIWXJSPLXGSLZ-UHFFFAOYSA-L

SMILES

C1=CC(=CC2=C1C=CC(=C2)S(=O)(=O)[O-])S(=O)(=O)[O-].[Na+].[Na+]

Synonyms (11)

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