What other records share CAS 39924-52-2?

CAS 39924-52-2 may appear across multiple EU annex records. The CAS lookup page shows all Annex II–VI entries sharing this identifier, useful for identifying cross-annex regulatory status of the same chemical substance.

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InventoryRef 4075602/03/2011

METHYL 3-OXO-PENTENYL-CYCLOPENTANEACETATE

Methyl 3-oxo-2-(pent-2-enyl) cyclopentaneacetate

METHYL 3-OXO-PENTENYL-CYCLOPENTANEACETATE 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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Exact external identity check

not_found

No complete-name PubChem match was verified. The material may be a mixture, trade-style INCI identity or be indexed under another identifier; this result must not be read as proof that no related chemistry exists.

Exact CosIng INCI name equals a PubChem synonym · Checked 2026-08-31

Inventory details for METHYL 3-OXO-PENTENYL-CYCLOPENTANEACETATE

INCI name

METHYL 3-OXO-PENTENYL-CYCLOPENTANEACETATE

Description

Methyl 3-oxo-2-(pent-2-enyl) cyclopentaneacetate

Record provenance

Inventory reference: 40756
Imported identity: METHYL 3-OXO-PENTENYL-CYCLOPENTANEACETATE
Source update: 02/03/2011

European Commission CosIng source notes

Annex records for METHYL 3-OXO-PENTENYL-CYCLOPENTANEACETATE

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Key data

CAS

39924-52-2

254-705-5

Restriction

—

Function

PERFUMING: Used for perfume and aromatic raw materials.

Ingredients with overlapping formulation functions

METHYL 2,6,6-TRIMETHYLCYCLOHEX-2-ENECARBOXYLATEPERFUMING

METHYL 2-OCTYNOATEPERFUMING

METHYL 3-NONENOATEPERFUMING

METHYL 3-OXO-2-PENTENYLCYCLOPENTANEACETATEPERFUMING

METHYL 4-T-BUTYLBENZOATEFLAVOURING, FRAGRANCE, PERFUMING

METHYL ABIETATEPERFUMING

METHYL ACETATEPERFUMING, SOLVENT

METHYL ACETOACETATEPERFUMING

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 chemicals PubChem PUG REST EU Safety Gate cosmetic product alerts ECHA CHEM US EPA CompTox 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

How METHYL 3-OXO-PENTENYL-CYCLOPENTANEACETATE appears in the CosIng inventory

The CosIng inventory lists METHYL 3-OXO-PENTENYL-CYCLOPENTANEACETATE 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.

METHYL 3-OXO-PENTENYL-CYCLOPENTANEACETATE 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

METHYL 3-OXO-PENTENYL-CYCLOPENTANEACETATE 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, METHYL 3-OXO-PENTENYL-CYCLOPENTANEACETATE carries the following function designation(s):

PERFUMING

CAS 39924-52-2 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 METHYL 3-OXO-PENTENYL-CYCLOPENTANEACETATE

This page reproduces the CosIng inventory entry for METHYL 3-OXO-PENTENYL-CYCLOPENTANEACETATE 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 METHYL 3-OXO-PENTENYL-CYCLOPENTANEACETATE 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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