Official EU label nameGlossary entry 22777

POTASSIUM TETRATHIONATE

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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Resolved identifiers

Resolved substance identity

CAS:13932-13-3

EC:237-702-3

Ingredient index records:

POTASSIUM TETRATHIONATE

Cosmetic functions: REDUCING

Tetrathionic acid, dipotassium salt

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1 matched or reported name

POTASSIUM TETRATHIONATE

Regulatory evidence across markets

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

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 13932-13-3

CAS 13932-13-3PubChem CID 61701

Potassium Tetrathionate

Potassium tetrathionate is a potassium salt composed of potassium and tetrathionate ions in a 2:1 ratio. It contains a tetrathionate(2-). — ChEBI

Molecular formula: K2O6S4
Molecular weight: 302.5 g/mol
Exact mass: 301.7851854 Da
Topological polar surface area: 182.0 Å²
Hydrogen-bond donors: 0
Hydrogen-bond acceptors: 8
Covalent units: 3
Defined stereocentres: 0

Also known as

Tetrathionic acid, dipotassium saltDipotassium tetrathionateTetrathionic acid, potassium salt (1:2)8X6V5C8FZ9CHEBI:86466Tetrathionate, PotassiumRefChem:175623237-702-3

15 more reported names

POTASSIUMTETRATHIONATEEINECS 237-702-3UNII-8X6V5C8FZ9Potassium tetrathionate [K2S406]POTASSIUM TETRATHIONATE (K2S4O6)CAS-13932-13-3Caswell No. 702AEPA Pesticide Chemical Code 075903FT-0689262K2O6S4UVTKHPSJNFFIDG-UHFFFAOYSA-LTox21_302315Tetrathionic acid,potassium salt (1:2)DB-231703CS-0196759

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External database identifiers

ChEBI:CHEBI:86466
ChEMBL:CHEMBL3187989
EPA DTXSID:DTXSID9047043

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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