Official EU label nameGlossary entry 593

ACETYL ARGININE

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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Evidence gaps

Resolved identifiers

Resolved substance identity

CAS:210545-23-6

EC:205-846-6

Ingredient index records:

ACETYL ARGININE

Cosmetic functions: HUMECTANT, SKIN CONDITIONING, SKIN CONDITIONING - EMOLLIENT

L- Arginine, N(2)-acetyl-

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1 matched or reported name

ACETYL ARGININE

Regulatory evidence across markets

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

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 210545-23-6

CAS 210545-23-6PubChem CID 16218842

(S)-2-Acetamido-5-guanidinopentanoic acid dihydrate

IUPAC name: (2S)-2-acetamido-5-(diaminomethylideneamino)pentanoic acid;dihydrate

Molecular formula: C8H20N4O5
Molecular weight: 252.27 g/mol
Exact mass: 252.14336975 Da
Topological polar surface area: 133.0 Å²
Hydrogen-bond donors: 6
Hydrogen-bond acceptors: 6
Covalent units: 3
Defined stereocentres: 1

Also known as

Ac-Arg-OH dihydrateAC-ARG-OH 2H2OAc-Arg-OH.2H2OL-Arginine, N2-acetyl-, hydrate (1:2)Acetyl-L-arginine dihydrateN-ACETYL-L-ARGININE DIHYDRATEN-Acetyl-L-arginine (dihydrate)N-Alpha-Acetyl-L-Arginine Dihydrate

12 more reported names

CS-0102494N-alpha-Acetyl-D-arginine dihydrateC8H16N4O3C8H20N4O5N-ACETYL-L-ARN-a-Acetyl-L-arginine dihydrateHMS548G13HY-W014130ABS-22060T5289J-300022(2S)-2-acetamido-5-guanidino-pentanoic acid;dihydrate

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External database identifiers

EPA DTXSID:DTXSID201347724

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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