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EU cosmetic ingredients, restrictions and safety
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Official EU label nameGlossary entry 26230

SODIUM ACETYL CYSTEINATE

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
Markets checked
13
Markets with evidence
0
Evidence gaps
13
Resolved identifiers
2

Resolved substance identity

CAS:19542-74-6
EC:243-143-6
Ingredient index records:
SODIUM ACETYL CYSTEINATE
Cosmetic functions: ABSORBENT, SKIN CONDITIONING, UV ABSORBER

L-Cysteine, N-acetyl-, monosodium salt

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1 matched or reported name
SODIUM ACETYL CYSTEINATE

Regulatory evidence across markets

None of the 13 markets tracked here holds an imported rule under the name SODIUM ACETYL CYSTEINATE.

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 19542-74-6
CAS 19542-74-6PubChem CID 23678798

Acetylcysteine Sodium

IUPAC name
sodium (2R)-2-acetamido-3-sulfanylpropanoate
Molecular formula
C5H8NNaO3S
Molecular weight
185.18 g/mol
Exact mass
185.01225857 Da
Topological polar surface area
70.2 Ų
Hydrogen-bond donors
2
Hydrogen-bond acceptors
4
Covalent units
2
Defined stereocentres
1

Also known as

L-CYSTEINE, N-ACETYL-, SODIUM SALTNRD80R06FBAcetylcysteine sodium saltCINNAMIDOPROPYLTRIMONIUM ACETYLCYSTEINATERefChem:109130243-143-6Sodium N-acetyl-L-cysteinatesodium;(2R)-2-acetamido-3-sulfanylpropanoate
10 more reported names
Sodium (R)-2-acetamido-3-mercaptopropanoatesodium N-acetylcysteinateUNII-NRD80R06FBAcetylcysteine GNREINECS 243-143-6Sodium N-Acetyl-CysteinateSODIUM ACETYL CYSTEINATEn-acetyl-l-cysteine sodium saltACETYLCYSTEINE SODIUM [MART.]ACETYLCYSTEINE SODIUM [WHO-DD]
Open full PubChem recordPubChem annotations3D structure image

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 assessmentsFDA Global Substance Registration SystemILO/WHO International Chemical Safety CardsJapan NITE-CHRIPNIOSH Pocket Guide to Chemical HazardsOECD eChemPortalUS 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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