What other records share CAS 10544-63-5?

CAS 10544-63-5 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 3984020/03/2017

ETHYL CROTONATE

Ethyl trans-2-butenoate

ETHYL CROTONATE 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 10544-63-5

CAS 10544-63-5PubChem CID 12191

2-Butenoic acid, ethyl ester

Ethyl crotonate appears as a clear colorless liquid with a pungent odor. Less dense than water and insoluble in water. Vapors heavier than air. — CAMEO Chemicals

IUPAC name: ethyl but-2-enoate

Molecular formula: C6H10O2
Molecular weight: 114.14 g/mol
Exact mass: 114.068079557 Da
XLogP3: 1.3
Topological polar surface area: 26.3 Å²
Hydrogen-bond donors: 0
Hydrogen-bond acceptors: 2
Covalent units: 1
Defined stereocentres: 0

Also known as

Ethylester kyseliny krotonoveRefChem:1062655but-2-enoic acid ethyl esterCrotonic acid ethyl esterethyl butenoateSCHEMBL1439SCHEMBL1440SCHEMBL1441

1 more reported name

DB-040631

Open full PubChem record PubChem annotations 3D structure image

External database identifiers

EPA DTXSID:DTXSID8065119
PubMed:22438014
PubMed:22428036
PubMed:22339496
PubMed:21799756
PubMed:21681760
PubMed:21455295
PubMed:20953430
PubMed:18941617
PubMed:17910752
PubMed:15712355
PubMed:15153009

Evidence from additional scientific databases

NIH PubChem PUG-View

Exact identifier match12191

Attributed physical-property, hazard, environmental and use annotations.

Boiling Point: 136-137 °C Source: Joint FAO/WHO Expert Committee on Food Additives (JECFA)

Density: 0.916-0.921 Source: Joint FAO/WHO Expert Committee on Food Additives (JECFA)

Physical Description: Ethyl crotonate appears as a clear colorless liquid with a pungent odor. Less dense than water and insoluble in water. Vapors heavier than air. Source: CAMEO Chemicals
Physical Description: Colorless liquid with a pungent odor; [CAMEO] Source: Haz-Map, Information on Hazardous Chemicals and Occupational Diseases
Physical Description: Colourless liquid; Powerful sour caramellic-fruity aroma Source: Joint FAO/WHO Expert Committee on Food Additives (JECFA)

Refractive Index: 1.422-1.428 Source: Joint FAO/WHO Expert Committee on Food Additives (JECFA)

Solubility: Insoluble in water; soluble in oils Source: Joint FAO/WHO Expert Committee on Food Additives (JECFA)
Solubility: Soluble (in ethanol) Source: Joint FAO/WHO Expert Committee on Food Additives (JECFA)

First Aid: Excerpt from ERG Guide 130 [Flammable Liquids (Water-Immiscible / Noxious)]:; Refer to the "General First Aid" section. Specific First Aid: Wash skin with soap and water. In case of burns, immediately cool affected skin for as long as possible with cold water. Do not remove clothing if adhering to skin. (ERG, 2024) Source: CAMEO Chemicals

Signal: Warning Source: European Chemicals Agency (ECHA)
GHS Hazard Statements: H226 (99.7%): Flammable liquid and vapor [Warning Flammable liquids]; H319 (> 99.9%): Causes serious eye irritation [Warning Serious eye damage/eye irritation] Source: European Chemicals Agency (ECHA)
Precautionary Statement Codes: P210, P233, P240, P241, P242, P243, P264+P265, P280, P303+P361+P353, P305+P351+P338, P337+P317, P370+P378, P403+P235, and P501 (click each P-code to see the statement) Source: European Chemicals Agency (ECHA)
ECHA C&L Notifications Summary: Aggregated GHS information provided per 1551 reports by companies from 3 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.; Information may vary between notifications depending on impurities, additives, and other factors. The percentage value in parenthesis indicates the notified classification ratio from companies that provide hazard codes. Only hazard codes with percentage values above 10% are shown. For more detailed information, please visit ECHA C&L website. Source: European Chemicals Agency (ECHA)

Mapped by: Existing checksum-valid CAS to unique PubChem CID match. Retrieved: 2026-08-31. Open source record

Scientific classifications and hazard annotations provide context and do not replace the market-specific regulatory decision shown above.

Additional source coverage and match status

Source	Result	Checked
EMBL-EBI ChEBI	No exact record	2026-08-31
NIH PubChem PUG-View	Exact match	2026-08-31

A recorded no-match is useful evidence that the source was checked; it is not a claim that the substance does not exist elsewhere.

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 CROTONATE

INCI name

ETHYL CROTONATE

Description

Ethyl trans-2-butenoate

Record provenance

Inventory reference: 39840
Imported identity: ETHYL CROTONATE
Source update: 20/03/2017

European Commission CosIng source notes

Annex records for ETHYL CROTONATE

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Key data

CAS

10544-63-5

234-125-9

Restriction

—

Function

PERFUMING: Used for perfume and aromatic raw materials.

Ingredients with overlapping formulation functions

ETHYL BUTYRATEPERFUMING

ETHYL CAPRATEPERFUMING, SKIN CONDITIONING, SKIN CONDITIONING - EMOLLIENT

ETHYL CINNAMATEPERFUMING, UV ABSORBER

ETHYL CITRALPERFUMING

ETHYL CYCLOHEXYLACETATEPERFUMING

ETHYL DIMETHYL-METHYLENECYCLOHEXENECARBOXYLATEPERFUMING

ETHYL DIMETHYLDIOXOLANE-2-ACETATEPERFUMING

ETHYL DIMETHYLOCTADIENOATEPERFUMING

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 ETHYL CROTONATE appears in the CosIng inventory

The CosIng inventory lists ETHYL CROTONATE 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 CROTONATE 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 CROTONATE 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 CROTONATE carries the following function designation(s):

PERFUMING

CAS 10544-63-5 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 CROTONATE

This page reproduces the CosIng inventory entry for ETHYL CROTONATE 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 CROTONATE 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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Tools & next steps

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Regulatory evidence by market

Chemical identity and properties

2-Butenoic acid, ethyl ester

Evidence from additional scientific databases

NIH PubChem PUG-View

Boiling Point 1

Density 1

Physical Description 3

Refractive Index 1

Solubility 2

First Aid 1

GHS Classification 4