Official EU label nameGlossary entry 26835

SODIUM NAPHTHOL SULFONATE

This record confirms an official common ingredient name for EU cosmetic product labelling. It does not by itself confirm that the substance is permitted, unrestricted or safe.

Global evidence snapshot

The resolved identity has matching regulatory evidence in 0 of 13 indexed market datasets: 0 country records and 0 EU Annex records. Every result and evidence gap is listed below.

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Evidence gaps

Resolved identifiers

Resolved substance identity

CAS:6099-57-6

EC:228-050-0

Ingredient index records:

SODIUM NAPHTHOL SULFONATE

Cosmetic functions: ABSORBENT

1-Naphthalenesulfonic acid, 4-hydroxy-, monosodium salt

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1 matched or reported name

SODIUM NAPHTHOL SULFONATE

Regulatory evidence across markets

None of the 13 markets tracked here holds an imported rule under the name SODIUM NAPHTHOL SULFONATE.

That is a statement about this inventory, not about the law: no imported rule is not evidence that a substance is permitted. A rule may exist under a different name, under a CAS or EC number this glossary entry does not carry, or in a dataset not yet imported.

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Chemical identity and properties

PubChem 2D chemical structure for CAS 6099-57-6

CAS 6099-57-6PubChem CID 4626046

Sodium 1-naphthol-4-sulfonate

IUPAC name: sodium 4-hydroxynaphthalene-1-sulfonate

Molecular formula: C10H7NaO4S
Molecular weight: 246.22 g/mol
Exact mass: 245.99627416 Da
Topological polar surface area: 85.8 Å²
Hydrogen-bond donors: 1
Hydrogen-bond acceptors: 4
Covalent units: 2
Defined stereocentres: 0

Also known as

sodium naphthol sulfonate1-Naphthalenesulfonic acid, 4-hydroxy-, monosodium saltSodium 4-hydroxynaphthalene-1-sulphonateNEVILLE WINTER ACIDK4037B899ZRefChem:8877291-naphthol-4-sulfonic acid, sodium salt228-050-0

16 more reported names

1-Naphthol-4-sulfonic acid sodium salt4-Hydroxy-1-naphthalenesulfonic acid sodium saltSodium 4-hydroxy-1-naphthalenesulfonatesodium;4-hydroxynaphthalene-1-sulfonate4-Hydroxy-1-naphthalenesulfonic acid monosodium salt1-Naphthalenesulfonic acid, 4-hydroxy-, sodium salt (1:1)Neville Winther AcidSodium 4-hydroxynaphthalenesulphonateUNII-K4037B899ZEINECS 228-050-0EINECS 298-446-6AI3-090521-Hydroxynaphthalene-4-sulfonic acid sodium saltsodium4-hydroxynaphthalene-1-sulfonateAS-143864-Hydroxy-1-naphthalenesulfonic acid sodium

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External database identifiers

EPA DTXSID:DTXSID6064113

Retrieved from NIH PubChem on 2026-08-31 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.

Additional authoritative substance research

Each link searches that source for this identity. A link is a research route, not a claim that the source holds an exact record. What each source is, and its legal weight

Cosmetic Ingredient Review safety assessments FDA Global Substance Registration System ILO/WHO International Chemical Safety Cards Japan NITE-CHRIP NIOSH Pocket Guide to Chemical Hazards OECD eChemPortal US EPA CompTox CTX APIs

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Official source and scope

Imported from Commission Implementing Decision (EU) 2025/1175 (dataset version EU 2025/1175). The glossary supplies common ingredient names for the ingredient list required by Article 19(1)(g); it is not an approval or safety list.

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