What does the restriction note for SODIUM PYRITHIONE mean?

The restriction field for SODIUM PYRITHIONE reads: II/369. This is the restriction note from the CosIng inventory. For authoritative conditions and limits, always refer to the linked annex entries.

What other records share CAS 15922-78-8?

CAS 15922-78-8 may appear across multiple EU annex records. The CAS lookup page shows all Annex II–VI entries sharing this identifier, useful for identifying cross-annex regulatory status of the same chemical substance.

How do I check if my formula contains SODIUM PYRITHIONE?

Use the INCI Checker to screen a full ingredient list across selected markets, or use the substance market comparison to review this identity across all supported market datasets.

InventoryRef 8461115/10/2010

SODIUM PYRITHIONE

1-Oxo-2-Pyridinethiol Sodium Salt

SODIUM PYRITHIONE is linked to 1 EU annex record on this page. Inventory note: II/369.

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Regulatory evidence by market

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Market	Evidence status	Records	Source language
European Union	Evidence linked Prohibited entry found Open this evidence	1	English and EU languages
Great Britain	Source mapped Official source mapped; ingredient rule not imported	0	English
Canada	Evidence linked Prohibited Open this evidence	1	English and French
New Zealand	Source mapped Official source mapped; ingredient rule not imported	0	English
ASEAN	Source mapped Official source mapped; ingredient rule not imported	0	English and national languages
China	Source mapped Official source mapped; ingredient rule not imported	0	Chinese with selected English material
Japan	Source mapped Official source mapped; ingredient rule not imported	0	Japanese; official English translation available
South Korea	Source mapped Official source mapped; ingredient rule not imported	0	Korean with some English names
United States	Source mapped Official source mapped; ingredient rule not imported	0	English
Australia	Source mapped Official source mapped; ingredient rule not imported	0	English
Brazil	Evidence linked Prohibited Open this evidence	1	Portuguese with INCI crosswalks
India	Source mapped Official source mapped; ingredient rule not imported	0	English and Hindi
Saudi Arabia	Source mapped Official source mapped; ingredient rule not imported	0	Arabic and English

Chemical identity and properties

PubChem 2D chemical structure for CAS 15922-78-8

CAS 15922-78-8PubChem CID 23685289

Pyrithione Sodium

2-Mercaptopyridine N-oxide sodium salt is a dihydropyridine. — ChEBI

IUPAC name: sodium 1-oxidopyridine-2-thione

Molecular formula: C5H4NNaOS
Molecular weight: 149.15 g/mol
Exact mass: 148.99112921 Da
Topological polar surface area: 58.4 Å²
Hydrogen-bond donors: 0
Hydrogen-bond acceptors: 2
Covalent units: 2
Defined stereocentres: 0

Also known as

Sodium pyrithioneSodium OmadineOmacide 24Sodium 2-pyridinethiol-1-oxide2(1H)-Pyridinethione, 1-hydroxy-, sodium saltNSC-4483RefChem:177802240-062-8

16 more reported names

6L3991491RAL-02725Pyrithione sodium saltTomicide sTopcide 2803811-73-2sodium;1-oxidopyridine-2-thionePyrithione sodium [USAN]Sodium 2-thioxopyridin-1(2H)-olate1-Hydroxy-2(1H)-pyridinethione, sodium saltOmadine-sodiumCaswell No. 790APyrithione sodium (USAN)2-Mercaptopyridine n-oxide sodiumC5H4NNaOSSodium 1-hydroxypyridine-2-thione

Open full PubChem record PubChem annotations 3D structure image

External database identifiers

ChEBI:CHEBI:201738
EPA DTXSID:DTXSID6034920

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

Inventory details for SODIUM PYRITHIONE

INCI name

SODIUM PYRITHIONE

Description

1-Oxo-2-Pyridinethiol Sodium Salt

Record provenance

Inventory reference: 84611
Imported identity: SODIUM PYRITHIONE
Source update: 15/10/2010

European Commission CosIng source notes

Annex records for SODIUM PYRITHIONE

Annex II Restriction reference

Entry 369

Pyrithione sodium (INNM) (2)

CAS: 3811-73-2

EC: 223-296-5

Key data

CAS

15922-78-8

240-062-8

Restriction

II/369

Function

PRESERVATIVE: Exclusively or mainly intended to inhibit the development of micro-organisms in the cosmetic product. All authorised preservatives are substances in the positive list of Annex V to the Cosmetics Regulation 1223/2009.

Official EU ingredient-name evidence

The ingredient name exactly matches the official 2025 EU glossary of common ingredient names.

#26961 · SODIUM PYRITHIONE

Ingredients with overlapping formulation functions

SODIUM PARABENPRESERVATIVE

SODIUM PHOSPHORUS/ZINC/CALCIUM/SILICON/ALUMINUM/SILVER OXIDESANTI-SEBUM, ANTIMICROBIAL, PRESERVATIVE

SODIUM PROPIONATEPRESERVATIVE

SODIUM PROPYLPARABENPRESERVATIVE

SODIUM SALICYLATEDENATURANT, PRESERVATIVE

SODIUM SORBATEPRESERVATIVE

SODIUM SULFITEANTIOXIDANT, HAIR WAVING OR STRAIGHTENING, PRESERVATIVE, REDUCING

SODIUM UNDECYLENATEPRESERVATIVE, SURFACTANT - CLEANSING, SURFACTANT - EMULSIFYING

Additional official and scientific sources

11 external databases to check this identity in

Each link searches that source for this identity. What each source is, and its legal weight

ECHA CHEM / Information on chemicals PubChem PUG REST EU Safety Gate cosmetic product alerts ECHA CHEM US EPA CompTox 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

How SODIUM PYRITHIONE appears in the CosIng inventory

The CosIng inventory lists SODIUM PYRITHIONE as a cosmetic ingredient and this page links it to 1 annex record. The inventory entry captures names and identifiers, while the annex record shows where the substance is prohibited, restricted or positively listed in EU cosmetics law.

SODIUM PYRITHIONE is also tagged with 1 cosmetic function in the official data. Function labels describe intended use, but they do not replace regulatory review of linked annex records before formulation or labelling work.

Frequently asked questions

SODIUM PYRITHIONE appears in the EU CosIng inventory and has linked annex records. Check the annex records above for applicable restrictions, concentration limits and conditions of use. Annex II listing means prohibited; Annex III means restricted; Annexes IV, V and VI mean permitted under specified conditions.

The restriction field for SODIUM PYRITHIONE reads: "II/369". This is the restriction note recorded in the CosIng inventory for this ingredient. For authoritative conditions and limits, always refer to the linked annex entries above.

According to the EU CosIng inventory, SODIUM PYRITHIONE carries the following function designation(s):

PRESERVATIVE

CAS 15922-78-8 may appear across multiple EU annex records. Viewing the CAS lookup page shows all Annex II–VI entries sharing this identifier, which is useful for identifying cross-annex regulatory status of the same chemical substance.

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Source note for SODIUM PYRITHIONE

This page combines the CosIng inventory entry for SODIUM PYRITHIONE with 1 linked Annex II–VI record from the local dataset built from public European Commission cosmetic ingredient materials.

Use this inventory page to research SODIUM PYRITHIONE and compare linked records, but verify restrictions and legal status against the current official source text and law before making regulatory decisions.

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