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Official EU label nameGlossary entry 673

ACETYL METHIONINE

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
4

Resolved substance identity

CAS:1115-47-565-82-7
EC:214-224-3200-617-7
Ingredient index records:
ACETYL METHIONINE
Cosmetic functions: SKIN CONDITIONING

N-acetylmethionine

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1 matched or reported name
ACETYL METHIONINE

Regulatory evidence across markets

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

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.

Check the markets and their sourcesSearch every market for this name

Chemical identity and properties

PubChem 2D chemical structure for CAS 1115-47-5
CAS 1115-47-5PubChem CID 6180

N-Acetyl-DL-methionine

N-acetylmethionine is a methionine derivative that is methionine in which one of the amine hydrogens is substituted by an acetyl group. It is a methionine derivative, a monocarboxylic acid, a N-acyl-amino acid and a methyl sulfide. It is a conjugate acid of a N-acetylmethioninate. — ChEBI

IUPAC name
2-acetamido-4-methylsulfanylbutanoic acid
Molecular formula
C7H13NO3S
Molecular weight
191.25 g/mol
Exact mass
191.06161445 Da
XLogP3
0.1
Topological polar surface area
91.7 Ų
Hydrogen-bond donors
2
Hydrogen-bond acceptors
4
Covalent units
1
Defined stereocentres
0

Also known as

METHIONINE, N-ACETYL-RefChem:828872Ac-DL-Met-OHAcetyl-DL-methionineDL-Methionine, N-acetyl-DL-N-Acetylmethionine2-Acetamido-4-(methylthio)butanoic acidMethionine, N-acetyl-, DL-
16 more reported names
N-Acetylmethionine, DL-Methionine EP Impurity CN-ACETYL-METHIONINENSC 7633dl-Acetylmethionine2-acetamido-4-methylsulfanyl-butanoic acidN-acetyl-D,L-methionine2-acetamido-4-(methylsulfanyl)butanoic acidNSC-7633AC-15650CS-0031301N-ACETYL-D,L-METHIONINE [USP IMPURITY]N-Acetyl(methyl)homocysteine4-04-00-03205 (Beilstein Handbook Reference)EINECS 214-224-3N-Acetyl(methyl)homocysteine #
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External database identifiers

Evidence from additional scientific databases

NIH PubChem PUG-View
Exact identifier match6180

Attributed physical-property, hazard, environmental and use annotations.

  • Note: This chemical does not meet GHS hazard criteria for 66.7% (4 of 6) of all reports. Source: European Chemicals Agency (ECHA)
  • Signal: Danger Source: European Chemicals Agency (ECHA)
  • GHS Hazard Statements: H318 (33.3%): Causes serious eye damage [Danger Serious eye damage/eye irritation] Source: European Chemicals Agency (ECHA)
  • Precautionary Statement Codes: P264+P265, P280, P305+P354+P338, and P317 (click each P-code to see the statement) Source: European Chemicals Agency (ECHA)
  • ECHA C&L Notifications Summary: Aggregated GHS information provided per 6 reports by companies from 2 notifications to the ECHA C&L Inventory.; Reported as not meeting GHS hazard criteria per 4 of 6 reports by companies.; There is 1 notification provided by 2 of 6 reports by companies with hazard statement code(s).; Information may vary between notifications depending on impurities, additives, and other factors. The percentage value in parenthesis indicates the notified classification ratio from companies that provide hazard codes. Only hazard codes with percentage values above 10% are shown. For more detailed information, please visit ECHA C&L website. Source: European Chemicals Agency (ECHA)

Mapped by: Existing checksum-valid CAS to unique PubChem CID match. Retrieved: 2026-08-31. Open source record

Scientific classifications and hazard annotations provide context and do not replace the market-specific regulatory decision shown above.

Additional source coverage and match status
SourceResultChecked
NIH PubChem PUG-ViewExact match2026-08-31

A recorded no-match is useful evidence that the source was checked; it is not a claim that the substance does not exist elsewhere.

Retrieved from NIH PubChem on 2026-08-31 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.

PubChem 2D chemical structure for CAS 65-82-7
CAS 65-82-7PubChem CID 448580

N-acetyl-L-methionine

N-acetyl-L-methionine is an L-methionine derivative that is L-methionine in which one of the amine hydrogens is substituted by an acetyl group. It has a role as a nutraceutical. It is a N-acetylmethionine, a N-acetyl-L-amino acid and a L-methionine derivative. It is a conjugate acid of a N-acetyl-L-methionine(1-). It is an enantiomer of a N-acetyl-D-methionine. — ChEBI

IUPAC name
(2S)-2-acetamido-4-methylsulfanylbutanoic acid
Molecular formula
C7H13NO3S
Molecular weight
191.25 g/mol
Exact mass
191.06161445 Da
XLogP3
0.1
Topological polar surface area
91.7 Ų
Hydrogen-bond donors
2
Hydrogen-bond acceptors
4
Covalent units
1
Defined stereocentres
1

Also known as

N-AcetylmethionineAcetyl-L-methionineMethionamineThiomedonAcetylmethionineL-(N-Acetyl)methionineL-Methionine, N-acetyl-Methionin
16 more reported names
AcMetMethionine, N-acetyl-, L-N-Ac-MetNalpha-acetyl-L-methionine(2S)-2-acetamido-4-(methylsulfanyl)butanoic acidFOLLICUSAN9J12WX5B6ACHEBI:21557NSC-118514N-Ac-L-methionineRefChem:162765200-617-7Ac-Met-OHacetyl methionineAcetylmethionin(S)-2-acetamido-4-(methylthio)butanoic acid
Open full PubChem recordPubChem annotations3D structure image
External database identifiers

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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