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CAS 51756-08-2 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 4067702/03/2011

METHYL ETHYLACETOACETATE

Methyl 2-ethylacetoacetate

METHYL ETHYLACETOACETATE 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.

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Chemical identity and properties

PubChem 2D chemical structure for CAS 51756-08-2

CAS 51756-08-2PubChem CID 103534

Butanoic acid, 2-ethyl-3-oxo-, methyl ester

IUPAC name: methyl 2-ethyl-3-oxobutanoate

Molecular formula: C7H12O3
Molecular weight: 144.17 g/mol
Exact mass: 144.078644241 Da
XLogP3: 0.9
Topological polar surface area: 43.4 Å²
Hydrogen-bond donors: 0
Hydrogen-bond acceptors: 3
Covalent units: 1
Defined stereocentres: 0

Also known as

Methyl 2-ethylacetoacetateEINECS 257-381-3Methyl 2-ethyl-3-oxobutyrateRefChem:122088257-381-3YXLVLOWNJCOOAU-UHFFFAOYSA-N2-Ethyl-3-oxobutanoic acid, methyl estermethyl-2-ethylacetoacetate

11 more reported names

methyl acetylbutyratemethyl 2-acetylbutyratemethyl ethyl acetoacetateMethyl2-ethyl-3-oxobutanoatemethyl 2-ethyl-3-oxo-butyratemethyl 2-ethyl-3-oxo-butanoateMethyl 2-ethyl-3-oxobutanoate #DB-071402EN300-21229Methyl 2-ethylacetoacetate, >=97.0% (GC)F0001-1348

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External database identifiers

EPA DTXSID:DTXSID00871398

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 METHYL ETHYLACETOACETATE

INCI name

METHYL ETHYLACETOACETATE

Description

Methyl 2-ethylacetoacetate

Record provenance

Inventory reference: 40677
Imported identity: METHYL ETHYLACETOACETATE
Source update: 02/03/2011

European Commission CosIng source notes

Annex records for METHYL ETHYLACETOACETATE

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Key data

CAS

51756-08-2

257-381-3

Restriction

—

Function

PERFUMING: Used for perfume and aromatic raw materials.

Ingredients with overlapping formulation functions

METHYL DIMETHYL-OCTENYLIDENEAMINO-BENZOATEPERFUMING

METHYL DIMETHYLBICYCLOHEPTANE-CARBOXYLATEPERFUMING

METHYL DIMETHYLOCTADIENOATEPERFUMING

METHYL DODECYLIDENEAMINOBENZOATEPERFUMING

METHYL EUGENOLFRAGRANCE, PERFUMING

METHYL FORMYLAMINOBENZOATEPERFUMING

METHYL FUROATEPERFUMING

METHYL HEPTANOATEPERFUMING

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 ETHYLACETOACETATE appears in the CosIng inventory

The CosIng inventory lists METHYL ETHYLACETOACETATE 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 ETHYLACETOACETATE 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 ETHYLACETOACETATE 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 ETHYLACETOACETATE carries the following function designation(s):

PERFUMING

CAS 51756-08-2 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 ETHYLACETOACETATE

This page reproduces the CosIng inventory entry for METHYL ETHYLACETOACETATE 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 ETHYLACETOACETATE 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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