Flavor ingredient regulatory record

Propyl acetate

Propyl acetate is an ester in the fruity family, FEMA GRAS under FEMA number 2925 (CAS 109-60-4). Its odor is sweet, fruity, pear, apple, estery.

FEMA
2925
CAS
109-60-4
JECFA
126
EU FL
09.002
Formula
C5H10O2
EC
203-686-1

GRAS status: FEMA GRAS, publication 3. Recorded by FDA in the Substances Added to Food inventory under CAS 109-60-4.

Structure

2D structure of Propyl acetate
Structure of Propyl acetate, C5H10O2. Drawn from the canonical SMILES.

Identity

IUPAC name propyl acetate
CAS number 109-60-4
FEMA number 2925
Molecular formula C5H10O2
Molecular weight 102.13 g/mol
SMILES CCCOC(C)=O
InChIKey YKYONYBAUNKHLG-UHFFFAOYSA-N
PubChem CID 7997
EC number 203-686-1
FDA UNII 4AWM8C91G6
EPA DTXSID DTXSID6021901
Chemical class Ester
Boiling point 102 °C
Flash point 13 °C

Also known as: Acetic acid, propyl ester, n-Propyl acetate, 1-Propyl acetate, 1-Acetoxypropane, Propyl ethanoate, n-Propanol acetate, Acetic acid n-propyl ester, NSC 72025, Acetic acid 1-propyl ester, n-propyl acetate, acetic acid, propyl ester, propyl ethanoate.

Can Propyl acetate be labeled natural?

Nature makes propyl acetate, which is why the US label turns on process. A natural route gives natural flavor; synthesis gives artificial propyl acetate, same molecule. The EU and UK follow the same logic without a middle class; Mercosur and Mexico label synthetic propyl acetate 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

Propyl acetate is FEMA GRAS under FEMA number 2925. 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 09.002, Annex I Part A under Regulation (EC) 1334/2008, evaluation status approved (JECFA). The UK retains the same list.

JECFA (WHO / FAO)

JECFA number 126, evaluated at the 49th meeting in 1997. 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. Propyl acetate appears on the EPA Toxic Substances Control Act Chemical Substance Inventory under CAS 109-60-4, where EPA names it Acetic acid, propyl 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, pear, apple, estery.

Where it is used

Propyl acetate is used in beverage, confection, fruit flavors, baked goods and ice cream, typically as a fruity note.

Structurally similar flavor ingredients

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

MaterialFEMASimilarityOccurrence
2,3-Hexanedione255891%In nature
3-Hexanone329091%In nature
Isobutyl acetate217584%In nature
4-Hexen-3-one335283%In nature
Ethyl acrylate241882%In nature

More esters in this index

Piperonyl acetate · mono-Menthyl succinate · Methyl 2-nonynoate · Ethyl (E)-2-methyl-2-pentenoate · 3-Oxohexadecanoic acid glyceride · n-Amyl octanoate

Propyl acetate FAQ

Is propyl acetate FEMA GRAS?

Yes. The FEMA Expert Panel lists propyl acetate as GRAS under FEMA number 2925. The Code of Federal Regulations lists it at 21 CFR 172.515.

What are the FEMA and CAS numbers for propyl acetate?

Propyl acetate is FEMA 2925, CAS 109-60-4. Its flavor category is fruity.

How is propyl acetate described, and where does it show up?

Flavorists describe propyl acetate as sweet, fruity, pear, apple, estery. It is used in beverage, confection, fruit flavors, baked goods and ice cream.

What did JECFA conclude about propyl acetate?

JECFA evaluated propyl acetate at the 49th meeting in 1997 under JECFA number 126. The panel concluded: No safety concern at current levels of intake when used as a flavouring agent.

Is propyl acetate on the EU Union List?

Yes. FL 09.002 is the Union List entry for propyl acetate, annex I Part A, under Regulation 1334/2008, and the UK keeps the same list.

Does propyl acetate count as natural in the US and the EU?

The process decides for propyl acetate. It occurs in nature, so a natural-source, natural-process material is natural flavor in the US and synthetic propyl acetate is artificial. The EU and UK follow the same logic without a middle class; Mercosur and Mexico label synthetic propyl acetate identical-to-natural.

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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 PROPYL ACETATE under CAS 109-60-4 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.