C10H7NaO3S
230.22 g/mol
Industrial ChemicalWarning
Sodium 2-naphthalenesulfonate
CAS532-02-5EC208-523-8
Category
Industrial Chemical
Compound Class
Aromatic
Primary Use
Surfactant and hydrotrope agent
Sodium 2-naphthalenesulfonate is an industrial chemical used primarily as a surfactant and hydrotrope agent. It functions as an emulsion stabilizer and suspending agent in cosmetic formulations, and has been permitted as an inert ingredient in non-food pesticide products.
Surfactant and hydrotrope agentEmulsion stabilizer in cosmeticsInert ingredient in non-food pesticide products
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 0.81
2,6-Naphthalenedisulfonic acid disodium salt
CAS1655-45-4
Dye intermediate
SimilarStructure SimilarSimilarity 0.77
2,7-Naphthalenedisulfonic acid disodium salt
CAS1655-35-2
Naphthalene sulfonate intermediate for dyes
ReferenceSame Category
Β,β'-dinaphthylamine
CAS532-18-3
dye intermediate
ReferenceSame Category
1-bromo-4-chloronaphthalene
CAS53220-82-9
chemical synthesis intermediate
ReferenceSame Category
Sodium caprylyl sulfonate
CAS5324-84-5
Surfactant in cleaning and textile processing
ReferenceSame Category
3-Chloro-2-methylbenzenethiol
CAS53249-76-6
chemical intermediate
Safety Reference
Warning
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
Customs Tariff Classification
The international HS code for Sodium 2-naphthalenesulfonate (CAS 532-02-5) 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
sodium naphthalene-2-sulfonate
InChIKey
YWPOLRBWRRKLMW-UHFFFAOYSA-M
SMILES
C1=CC=C2C=C(C=CC2=C1)S(=O)(=O)[O-].[Na+]
Synonyms (20)
- NSA
- Sodium 2-naphthalenesulfonate
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