Flavor ingredient regulatory record

Allyl cyclohexane butyrate

Allyl cyclohexane butyrate is an ester in the fruity family, FEMA GRAS under FEMA number 2024 (CAS 7493-65-4). Its odor is sweet, fruity, floral, buttery, tropical.

FEMA
2024
CAS
7493-65-4
JECFA
14
EU FL
09.411
Formula
C13H22O2

GRAS status: FEMA GRAS, publication 3. Recorded by FDA in the Substances Added to Food inventory under CAS 7493-65-4.

Structure

2D structure of Allyl cyclohexane butyrate
Structure of Allyl cyclohexane butyrate, C13H22O2. Drawn from the canonical SMILES.

Identity

IUPAC name prop-2-enyl 4-cyclohexylbutanoate
CAS number 7493-65-4
FEMA number 2024
Molecular formula C13H22O2
Molecular weight 210.32 g/mol
SMILES C=CCOC(=O)CCCC1CCCCC1
InChIKey SIIAEMSHVLJRHI-UHFFFAOYSA-N
PubChem CID 61405
FDA UNII 9JIF47RD7B
EPA DTXSID DTXSID8064721
Chemical class Ester
Boiling point 104 °C
Flash point 35 °C

Also known as: Cyclohexanebutanoic acid, 2-propen-1-yl ester, Cyclohexanebutyric acid, allyl ester, Cyclohexanebutanoic acid, 2-propenyl ester, Allyl cyclohexanebutyrate, allyl cyclohexanebutyrate, allyl 4-cyclohexylbutyrate, cyclohexanebutanoic acid, 2-propenyl ester, allyl hexahydrophenylbutyrate, allyl cyclohexyl butyrate, cyclohexanebutyric acid, allyl ester, 2-propen-1-yl cyclohexanebutyrate, cyclohexanebutanoic acid, 2-propen-1-yl ester.

Can Allyl cyclohexane butyrate be labeled natural?

Allyl cyclohexane butyrate occurs in nature, so the label depends on the route: allyl cyclohexane butyrate won from a natural source by a physical, enzymatic or microbiological process is natural flavor in the United States, and synthesized allyl cyclohexane butyrate is artificial. The EU and UK follow the same logic without a middle class; Mercosur and Mexico label synthetic allyl cyclohexane butyrate identical-to-natural.

United States
Natural or artificial, by process
European Union and UK
Natural only from natural material
Mercosur and Mexico
Natural or identical-to-natural

How each market defines the classes: natural vs artificial flavor under 21 CFR 101.22.

Regulatory status, with citations

United States

Allyl cyclohexane butyrate is FEMA GRAS under FEMA number 2024. It is cited in the Code of Federal Regulations at 21 CFR 172.515.

21 CFR 172.515

European Union and United Kingdom

Listed on the Union List of flavouring substances as FL 09.411, Annex I Part A under Regulation (EC) 1334/2008, evaluation status approved (JECFA/EFSA). The UK retains the same list.

JECFA (WHO / FAO)

JECFA number 14, evaluated at the 46th meeting in 1996. No safety concern at current levels of intake when used as a flavouring agent.

JECFA monograph

Other US flags

Not on the California Proposition 65 list.

TSCA Inventory status

A flavor ingredient is also an industrial chemical. Allyl cyclohexane butyrate appears on the EPA Toxic Substances Control Act Chemical Substance Inventory under CAS 7493-65-4, where EPA names it Cyclohexanebutanoic acid, 2-propen-1-yl ester.

Active in US commerce

EPA designates this substance active, so no Notice of Activity Form B is required before manufacturing. What active and inactive mean.

EPA publishes no regulatory flags on this listing. What the flags mean.

From the EPA non-confidential TSCA Inventory, July 2026 release. EPA also maintains a confidential portion it does not publish. Search the Inventory by CAS number.

Odor and taste

Odor: Sweet, fruity, floral, buttery, tropical.

Where it is used

Allyl cyclohexane butyrate is used in beverage, confection, fruit flavors, bakery and dairy, typically as a fruity note.

Allyl cyclohexane butyrate FAQ

Is allyl cyclohexane butyrate on the FEMA GRAS list?

It is. FEMA number 2024 covers allyl cyclohexane butyrate. It is also codified at 21 CFR 172.515.

What is the FEMA number for allyl cyclohexane butyrate?

The FEMA number for allyl cyclohexane butyrate is 2024 and its CAS registry number is 7493-65-4. FEMA files it in the fruity flavor category.

Is allyl cyclohexane butyrate natural or artificial?

Since allyl cyclohexane butyrate is found in nature, US labeling follows how it was obtained: natural flavor from a natural source and a natural process, artificial when allyl cyclohexane butyrate is synthesized. The EU and UK follow the same logic without a middle class; Mercosur and Mexico label synthetic allyl cyclohexane butyrate identical-to-natural.

Is allyl cyclohexane butyrate approved in the EU?

Allyl cyclohexane butyrate is on the EU Union List of flavouring substances as FL 09.411 (Annex I Part A) under Regulation 1334/2008.

Has JECFA evaluated allyl cyclohexane butyrate?

Yes. JECFA number 14, evaluated at the 46th meeting in 1996. Conclusion: No safety concern at current levels of intake when used as a flavouring agent.

What is allyl cyclohexane butyrate used for?

Allyl cyclohexane butyrate is described as sweet, fruity, floral, buttery, tropical. It shows up in beverage, confection, fruit flavors, bakery and dairy.

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Sources and attribution. The identity and regulatory facts on this page are taken from the FDA Substances Added to Food inventory, a US government record, which lists this substance as ALLYL CYCLOHEXANEBUTYRATE under CAS 7493-65-4 and carries its FEMA number, its JECFA flavor number and its 21 CFR citations. The inventory is searchable at FDA. FDA records its technical effect as flavoring agent or adjuvant.

A FEMA GRAS conclusion is reached by the Expert Panel of the Flavor and Extract Manufacturers Association of the United States, and the FEMA number names that conclusion. FEMA publishes its own entry for this substance in the FEMA Flavor Library, which is the authoritative record of what the Panel decided and is worth reading alongside this page.

Ambrose Compliance is not affiliated with, endorsed by, or sponsored by FEMA. FEMA and FEMA GRAS are used here as identifiers for a published regulatory determination, not as marks of any relationship between FEMA and Ambrose.

About this page. Facts come from the FDA Substances Added to Food inventory, the Code of Federal Regulations, the EPA TSCA Inventory, the EU Union List, JECFA and the Ambrose database, with FEMA's published determination cited where it applies; parts of the text are written by Ambrose AI, which can make mistakes. Check the cited source before relying on anything here. This is not regulatory or legal advice.