Official EU label nameGlossary entry 16254

MENTHYL PCA

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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Markets with evidence

Evidence gaps

Resolved identifiers

Resolved substance identity

CAS:64519-44-468127-22-0

EC:264-935-8268-568-4

Ingredient index records:

MENTHYL PCA

Cosmetic functions: HUMECTANT, SKIN CONDITIONING

[1R-(1.alpha.,2.beta.,5.alpha.)]-2-Isopropyl-5-methylcyclohexyl 5-oxo-L-prolinate / [1R-(1.alpha.,2.beta.,5.alpha.)]-2-Isopropyl-5-methylcyclohexyl 5-oxo-D-prolinate

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1 matched or reported name

MENTHYL PCA

Regulatory evidence across markets

None of the 13 markets tracked here holds an imported rule under the name MENTHYL PCA.

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 64519-44-4

CAS 64519-44-4PubChem CID 115834

L-Proline, 5-oxo-, (1R,2S,5R)-5-methyl-2-(1-methylethyl)cyclohexyl ester

IUPAC name: [(1R,2S,5R)-5-methyl-2-propan-2-ylcyclohexyl] (2S)-5-oxopyrrolidine-2-carboxylate

Molecular formula: C15H25NO3
Molecular weight: 267.36 g/mol
Exact mass: 267.18344366 Da
XLogP3: 3.0
Topological polar surface area: 55.4 Å²
Hydrogen-bond donors: 1
Hydrogen-bond acceptors: 3
Covalent units: 1
Defined stereocentres: 4

Also known as

UNII-C7ZIB25BE7C7ZIB25BE7(-)-Menthyl (-)-2-pyrrolidone-5-carboxylateEINECS 264-935-8(-)Menthyl 2-pyrrolidone-5-carboxylateMenthyl pyrrolidone carboxylate, (-),L-(-)-MENTHYL L-PIDOLATE(-)Menthyl (-)-2-pyrrolidone-5-carboxylate

16 more reported names

(-)-MENTHYL L-PYROGLUTAMATEMENTHYL PYROGLUTAMATE, (-),L-(-)-MENTHYL L-PYRROLIDONE CARBOXYLATEMENTHYL PYRROLIDONE CARBOXYLATE, (-)-MENTHYL PYRROLIDONE CARBOXYLATE, L-(-)-((1R,2S,5R)-2-ISOPROPYL-5-METHYL-CYCLOHEXYL) (2S)-5-OXOPYRROLIDINE-2-CARBOXYLATEL-PROLINE, 5-OXO-, 5-METHYL-2-(1-METHYLETHYL)CYCLOHEXYL ESTER, (1R-(1.ALPHA.,2.BETA.,5.ALPHA.))-[(1R,2S,5R)-2-isopropyl-5-methyl-cyclohexyl] (2S)-5-oxopyrrolidine-2-carboxylateRefChem:151937FEMA NO. 4155, (-),L-264-935-8L-PROLINE, 5-OXO-, 5-METHYL-2-(1-METHYLETHYL)CYCLOHEXYL ESTER, (1R-(1ALPHA,2BETA,5ALPHA))-(1R,2S,5R)-5-Methyl-2-isopropylcyclohexyl 5-oxo-L-prolinate(S)-(1R,2S,5R)-2-Isopropyl-5-methylcyclohexyl 5-oxopyrrolidine-2-carboxylate(1R, 2S, 5R)-5-Methyl-2-isopropylcyclohexyl-5-oxo-L-prolinate(1R,2S,5R)-2-isopropyl-5-methylcyclohexyl (S)-5-oxopyrrolidine-2-carboxylate

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External database identifiers

EPA DTXSID:DTXSID80886687

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 68127-22-0

CAS 68127-22-0PubChem CID 21118466

Menthyl pyrrolidone carboxylate, D-(-)-

IUPAC name: [(1R,2S,5R)-5-methyl-2-propan-2-ylcyclohexyl] (2R)-5-oxopyrrolidine-2-carboxylate

Molecular formula: C15H25NO3
Molecular weight: 267.36 g/mol
Exact mass: 267.18344366 Da
XLogP3: 3.0
Topological polar surface area: 55.4 Å²
Hydrogen-bond donors: 1
Hydrogen-bond acceptors: 3
Covalent units: 1
Defined stereocentres: 4

Also known as

Y27B4585KOD-Proline, 5-oxo-, (1R,2S,5R)-5-methyl-2-(1-methylethyl)cyclohexyl esterRefChem:810982FEMA NO. 4155, (-),D-5-Oxo-D-proline (1R,2S,5R)-5-methyl-2-(1-methylethyl)cyclohexyl ester(-)-Menthyl (+)-2-pyrrolidone-5-carboxylate(1R,2S,5R)-Menthyl (R)-PyroglutamateUNII-Y27B4585KO

8 more reported names

EINECS 268-568-4Menthyl pyrrolidone carboxylate, (-),D-SLHPMAOXNSLXEH-YVECIDJPSA-ND-(-)-menthyl pyrrolidone carboxylate(1R,2S,5R)-5-Methyl-2-(propan-2-yl)cyclohexyl 5-oxo-D-prolinate((1R,2S,5R)-2-ISOPROPYL-5-METHYL-CYCLOHEXYL) (2R)-5-OXOPYRROLIDINE-2-CARBOXYLATE(1R-(1alpha,2beta,5alpha))-2-Isopropyl-5-methylcyclohexyl 5-oxo-D-prolinateD-PROLINE, 5-OXO-, 5-METHYL-2-(1-METHYLETHYL)CYCLOHEXYL ESTER, (1R-(1.ALPHA.,2.BETA.,5.ALPHA.))-

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External database identifiers

EPA DTXSID:DTXSID10887167

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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