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InventoryRef 3384215/10/2010

ETHYL PCA

Ethyl 5-oxo-L-prolinate

ETHYL PCA is listed in the EU CosIng inventory, but no direct annex records are linked on this page yet.

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Regulatory evidence by market

No rule for this ingredient has been imported for any of the 13 markets tracked here.

That describes this inventory, not the law. No imported rule is not evidence that an ingredient is permitted: a rule may exist under another name or identifier, or in a dataset not yet imported here.

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Chemical identity and properties

PubChem 2D chemical structure for CAS 7149-65-7
CAS 7149-65-7PubChem CID 2724446

Ethyl 5-oxo-L-prolinate

IUPAC name
ethyl (2S)-5-oxopyrrolidine-2-carboxylate
Molecular formula
C7H11NO3
Molecular weight
157.17 g/mol
Exact mass
157.07389321 Da
XLogP3
-0.1
Topological polar surface area
55.4 Ų
Hydrogen-bond donors
1
Hydrogen-bond acceptors
3
Covalent units
1
Defined stereocentres
1

Also known as

RefChem:595835Ethyl L-pyroglutamateL-Pyroglutamic acid ethyl esterEthyl pidolateEthyl (S)-(+)-2-pyrrolidone-5-carboxylate(S)-ethyl 5-oxopyrrolidine-2-carboxylateH-Pyr-OEt(S)-(+)-5-Ethylcarboxyl-2-pyrrolidinone
16 more reported names
Ethyl pyroglutamate1PS59ES316Ethyl (S)-5-oxopyrrolidine-2-carboxylate(+)-L-Pyroglutamic acid ethyl esterpyroglutamic acid ethyl esterUNII-1PS59ES316NSC-72279NSC-166529EINECS 230-480-9NSC 72279NSC 166529ETHYL PCAETHYL (S)-PYROGLUTAMATEL-Proline, 5-oxo-, ethyl esterAC-708Ethyl 5-oxo-2-pyrrolidinecarboxylate
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.

Inventory details for ETHYL PCA

INCI name

ETHYL PCA

Description

Ethyl 5-oxo-L-prolinate

Record provenance

Inventory reference
33842
Imported identity
ETHYL PCA
Source update
15/10/2010
European Commission CosIng source notes
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Key data

CAS
7149-65-7
EC
230-480-9
Restriction
—
Function
SKIN CONDITIONING
Maintaining the skin in good condition.

Official EU ingredient-name evidence

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

#10106 · ETHYL PCA

Ingredients with overlapping formulation functions

ETHYL LAUROYL ARGINATE LAURATESKIN CONDITIONING
ETHYL MACADAMIATESKIN CONDITIONING
ETHYL MYRISTATEFRAGRANCE, PERFUMING, SKIN CONDITIONING, SKIN CONDITIONING - EMOLLIENT
ETHYL NICOTINATEPERFUMING, SKIN CONDITIONING
ETHYL PHENYLALANINAMIDO POLYGAMMA-GLUTAMIC ACIDSKIN CONDITIONING, SURFACTANT - CLEANSING, SURFACTANT - EMULSIFYING
ETHYL PYRUVATESKIN CONDITIONING
ETHYL RICINOLEATEPERFUMING, SKIN CONDITIONING
ETHYL SERINATEANTISTATIC, HAIR CONDITIONING, SKIN CONDITIONING

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 chemicalsPubChem PUG RESTEU Safety Gate cosmetic product alertsECHA CHEMUS EPA CompToxCosmetic Ingredient Review safety assessmentsFDA Global Substance Registration SystemILO/WHO International Chemical Safety CardsJapan NITE-CHRIPNIOSH Pocket Guide to Chemical HazardsOECD eChemPortal

How ETHYL PCA appears in the CosIng inventory

The CosIng inventory lists ETHYL PCA as a cosmetic ingredient and this page links it to 0 annex records. The inventory entry captures names and identifiers, while the annex records show where the substance is prohibited, restricted or positively listed in EU cosmetics law.

ETHYL PCA 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

ETHYL PCA is listed in the EU CosIng ingredient inventory with no direct annex restriction records linked at this time. Absence of an annex link does not guarantee unrestricted use — always verify against the current official CosIng database before formulating.

According to the EU CosIng inventory, ETHYL PCA carries the following function designation(s):

CAS 7149-65-7 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 ETHYL PCA

This page reproduces the CosIng inventory entry for ETHYL PCA from public European Commission cosmetic ingredient materials and shows linked identifiers even when no direct annex match is currently attached.

Use this inventory page to research ETHYL PCA 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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