Official EU label nameGlossary entry 22781

POTASSIUM TOLUENESULFONATE

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.

0 markets with evidence

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Markets with evidence

Evidence gaps

Resolved identifiers

Resolved substance identity

CAS:16106-44-8

EC:240-273-5

Ingredient index records:

POTASSIUM TOLUENESULFONATE

Cosmetic functions: SURFACTANT - CLEANSING, SURFACTANT - HYDROTROPE

Potassium toluene-4-sulphonate

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1 matched or reported name

POTASSIUM TOLUENESULFONATE

Regulatory evidence across markets

None of the 13 markets tracked here holds an imported rule under the name POTASSIUM TOLUENESULFONATE.

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 16106-44-8

CAS 16106-44-8PubChem CID 23689124

Potassium Toluenesulfonate

Potassium Toluenesulfonatesafe ... as cosmetic ingredient in the present practice of use and concentration as described in this safety assessment, when formulated to be nonirritating — Cosmetic Ingredient Review (CIR)

IUPAC name: potassium 4-methylbenzenesulfonate

Molecular formula: C7H7KO3S
Molecular weight: 210.29 g/mol
Exact mass: 209.97529674 Da
Topological polar surface area: 65.6 Å²
Hydrogen-bond donors: 0
Hydrogen-bond acceptors: 3
Covalent units: 2
Defined stereocentres: 0

Also known as

Potassium p-toluenesulfonateBenzenesulfonic acid, 4-methyl-, potassium saltpotassium tosylateUNII-AX518O2S47AX518O2S47ELTESOL PT40EINECS 240-273-5P-toluenesulfonic acid, potassium salt

16 more reported names

POTASSIUM P-TOLYLSULFONATEPOTASSIUM P-TOLUENESULPHONATEBenzenesulfonic acid, 4-methyl-, potassium salt (1:1)4-Methylbenzenesulfonic acid, potassium salt4-METHYLBENZENESULFONIC ACID POTASSIUM SALTRefChem:175631Potassium ptoluenesulfonatePotassium toluene4sulphonatePOTASSIUM TOLUENESULFONATE [INCI]4Methylbenzenesulfonic acid, potassium salt240-273-5Potassium toluene-4-sulphonatepotassium;4-methylbenzenesulfonatepotassiumtosylatePotassium 4-methylbenzene-1-sulfonateDB-244767

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External database identifiers

EPA DTXSID:DTXSID90884871

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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