Official EU label nameGlossary entry 4991

CALCIUM THIOGLYCOLATE HYDROXIDE

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:65208-41-529820-13-1

EC:249-881-5

Ingredient index records:

CALCIUM THIOGLYCOLATE HYDROXIDE

Cosmetic functions: DEPILATORY

Acetic Acid, Mercapto-, Calcium Salt (1:1), Trihydrate; Calcium sulphidoacetate

Inventory restriction note: III/2a

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1 matched or reported name

CALCIUM THIOGLYCOLATE HYDROXIDE

Regulatory evidence across markets

None of the 13 markets tracked here holds an imported rule under the name CALCIUM THIOGLYCOLATE HYDROXIDE.

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 29820-13-1

CAS 29820-13-1PubChem CID 22039

(2-(Mercapto-kappaS)acetato(2-)-kappaO)calcium

IUPAC name: calcium 2-sulfidoacetate

Molecular formula: C2H2CaO2S
Molecular weight: 130.18 g/mol
Exact mass: 129.9401413 Da
Topological polar surface area: 41.1 Å²
Hydrogen-bond donors: 0
Hydrogen-bond acceptors: 3
Covalent units: 2
Defined stereocentres: 0

Also known as

Calcium, (mercaptoacetato(2-)-O,S)-Calcium, [mercaptoacetato(2-)-O,S]-(Mercaptoacetato(2-)-O,S)calciumMercaptoacetic acid, monocalcium saltCalcium, (2-(mercapto-kappaS)acetato(2-)-kappaO)-RefChem:395121253-511-8Calcium thioglycolate (1:1)

12 more reported names

Calcium sulphidoacetatecalcium;2-sulfidoacetateAcetic acid, mercapto-, calcium salt (1:1)Thioglycolic acid calcium saltAcetic acid, 2-mercapto-, calcium salt (1:1)EINECS 249-881-5calcium sulfidoacetateC2H2CaO2SEC 249-881-5Mercaptoacetic Acid Calcium SaltQVCFQEFEMBCIOI-UHFFFAOYSA-LDB-369920

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External database identifiers

EPA DTXSID:DTXSID00890822

Retrieved from NIH PubChem on 2026-09-02 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.

PubChem 2D chemical structure for CAS 65208-41-5

CAS 65208-41-5PubChem CID 56840831

Calcium sulfidoacetate--water (1/1/3)

IUPAC name: calcium;2-sulfidoacetate;trihydrate

Molecular formula: C2H8CaO5S
Molecular weight: 184.23 g/mol
Exact mass: 183.9718354 Da
Topological polar surface area: 44.1 Å²
Hydrogen-bond donors: 3
Hydrogen-bond acceptors: 6
Covalent units: 5
Defined stereocentres: 0

Also known as

RefChem:331596C2H8CaO5SUM6R6Q3WPX

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External database identifiers

EPA DTXSID:DTXSID90746900

Retrieved from NIH PubChem on 2026-09-02 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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