Flavor ingredient regulatory record

cis-3-Hexenyl benzoate

cis-3-Hexenyl benzoate is an ester in the fruity family, FEMA GRAS under FEMA number 3688 (CAS 25152-85-6). Its odor is sweet, fruity, green, fresh.

FEMA
3688
CAS
25152-85-6
JECFA
858
EU FL
09.806
Formula
C13H16O2
EC
246-669-4

GRAS status: FEMA GRAS, publication 13. Recorded by FDA in the Substances Added to Food inventory under CAS 25152-85-6.

Structure

2D structure of cis-3-Hexenyl benzoate
Structure of cis-3-Hexenyl benzoate, C13H16O2. Drawn from the canonical SMILES.

Identity

IUPAC name [(Z)-hex-3-enyl] benzoate
CAS number 25152-85-6
FEMA number 3688
Molecular formula C13H16O2
Molecular weight 204.27 g/mol
SMILES CC/C=C\CCOC(=O)c1ccccc1
InChIKey BCOXBEHFBZOJJZ-ARJAWSKDSA-N
PubChem CID 5367706
EC number 246-669-4
FDA UNII P4871S0YA9
EPA DTXSID DTXSID3047554
Chemical class Ester
Boiling point 105 °C
Flash point 36 °C

Also known as: 3-Hexen-1-ol, 1-benzoate, (3Z)-, 3-Hexen-1-ol, benzoate, (Z)-, 3-Hexen-1-ol, benzoate, (3Z)-, (Z)-3-Hexenyl benzoate, (Z)-3-Hexen-1-yl benzoate, Benzoic acid cis-3-hexene ester, Leaf benzoate, (3Z)-Hexenyl benzoate, (Z)-Hex-3-en-1-yl benzoate, (3z)-hex-3-en-1-yl benzoate, (z)-3-hexenyl benzoate, 3-hexenyl benzoate, (z)-.

Can cis-3-Hexenyl benzoate be labeled natural?

cis-3-Hexenyl benzoate occurs in nature, so the label depends on the route: cis-3-Hexenyl benzoate won from a natural source by a physical, enzymatic or microbiological process is natural flavor in the United States, and synthesized cis-3-Hexenyl benzoate is artificial. In the EU and UK the natural claim likewise needs the natural route, while Mercosur and Mexico keep a third class, identical-to-natural, for the synthetic material.

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

cis-3-Hexenyl benzoate is FEMA GRAS under FEMA number 3688. 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 09.806, Annex I Part A under Regulation (EC) 1334/2008, evaluation status approved (EFSA). The UK retains the same list.

Purity. 93-97% cis-hexenyl benzoate; 1-2% trans-3-hexenyl benzoate

JECFA (WHO / FAO)

JECFA number 858, evaluated at the 57th meeting in 2001. 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. cis-3-Hexenyl benzoate appears on the EPA Toxic Substances Control Act Chemical Substance Inventory under CAS 25152-85-6, where EPA names it 3-Hexen-1-ol, 1-benzoate, (3Z)-.

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, green, fresh.

Where it is used

cis-3-Hexenyl benzoate is used in beverage, confection, fruit flavors, flavoring agents and perfumes, typically as a fruity note.

Structurally similar flavor ingredients

Flavor ingredients with a GRAS determination closest to cis-3-Hexenyl benzoate by structure. Whether one can replace it is a sensory and regulatory call; the reformulation tool works that through.

MaterialFEMASimilarityOccurrence
3-Hexenyl phenylacetate363389%In nature
Cinnamyl butyrate229685%In nature
Butyl phenylacetate220980%In nature
Benzyl hexanoate402679%In nature
Butyl beta-naphthyl ether463475%Not determined

More esters in this index

Isoamyl propionate · Methyl benzoate · Pinocarvyl acetate · Isoamyl nonanoate · Methyl octanoate · Ethyl 3-(2-furyl)propanoate

cis-3-Hexenyl benzoate FAQ

Does cis-3-Hexenyl benzoate have FEMA GRAS status?

cis-3-Hexenyl benzoate holds FEMA GRAS status under FEMA number 3688. It is also codified at 21 CFR 172.515.

How do I cite cis-3-Hexenyl benzoate by FEMA or CAS number?

Cite cis-3-Hexenyl benzoate as FEMA 3688 or CAS 25152-85-6; both point to the same entry. FEMA files it in the fruity flavor category.

Can cis-3-Hexenyl benzoate be labeled a natural flavor?

Since cis-3-Hexenyl benzoate is found in nature, US labeling follows how it was obtained: natural flavor from a natural source and a natural process, artificial when cis-3-Hexenyl benzoate is synthesized. In the EU and UK the natural claim likewise needs the natural route, while Mercosur and Mexico keep a third class, identical-to-natural, for the synthetic material.

Can cis-3-Hexenyl benzoate be used in the EU and UK?

cis-3-Hexenyl benzoate is on the EU Union List of flavouring substances as FL 09.806 (Annex I Part A) under Regulation 1334/2008.

Has JECFA evaluated cis-3-Hexenyl benzoate?

Yes. JECFA number 858, evaluated at the 57th meeting in 2001. Conclusion: No safety concern at current levels of intake when used as a flavouring agent.

What does cis-3-Hexenyl benzoate smell and taste like, and where is it used?

The odor of cis-3-Hexenyl benzoate is sweet, fruity, green, fresh. Typical uses are beverage, confection, fruit flavors, flavoring agents and perfumes.

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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 CIS-3-HEXENYL BENZOATE under CAS 25152-85-6 and carries its FEMA number, its JECFA flavor number. 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.