Flavor ingredient regulatory record

p-Menth-1-en-9-ol

p-Menth-1-en-9-ol is a terpene in the mint family, FEMA GRAS under FEMA number 4508 (CAS 18479-68-0). Its odor is minty, fresh, herbal, green.

FEMA
4508
CAS
18479-68-0
JECFA
1905
Formula
C10H18O

GRAS status: FEMA GRAS, publication 24. Recorded by FDA in the Substances Added to Food inventory under CAS 18479-68-0.

Structure

2D structure of p-Menth-1-en-9-ol
Structure of p-Menth-1-en-9-ol, C10H18O. Drawn from the canonical SMILES.

Identity

IUPAC name 2-(4-methylcyclohex-3-en-1-yl)propan-1-ol
CAS number 18479-68-0
FEMA number 4508
Molecular formula C10H18O
Molecular weight 154.25 g/mol
SMILES CC1=CCC(C(C)CO)CC1
InChIKey ZTYHGIAOVUPAAH-UHFFFAOYSA-N
PubChem CID 86753
FDA UNII 5F602CF6QF
EPA DTXSID DTXSID00864841
Chemical class Terpene
Boiling point 108 °C
Flash point 37 °C

Also known as: 3-Cyclohexene-1-ethanol, β,4-dimethyl-, β,4-Dimethyl-3-cyclohexene-1-ethanol, 2-(4-Methyl-3-cyclohexen-1-yl)-1-propanol, 2-(4-methylcyclohex-3-en-1-yl)propan-1-ol, 3-cyclohexene-1-ethanol, .beta.,4-dimethyl-, 3-cyclohexene-1-ethanol, beta,4-dimethyl-, (+-)-p-menth-1-en-9-ol, p-menth-1-en-9-ol, (+-)-, (+)-p-menth-1-en-9-ol, p-menth-1-ene-9-ol, p-mentha-1-en-9-ol, beta,4-dimethylcyclohex-3-ene-1-ethanol.

Can p-Menth-1-en-9-ol be labeled natural?

p-Menth-1-en-9-ol occurs in nature, so the label depends on the route: p-Menth-1-en-9-ol won from a natural source by a physical, enzymatic or microbiological process is natural flavor in the United States, and synthesized p-Menth-1-en-9-ol is artificial. The EU and UK follow the same logic without a middle class; Mercosur and Mexico label synthetic p-Menth-1-en-9-ol 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

p-Menth-1-en-9-ol is FEMA GRAS under FEMA number 4508. It is cited in the Code of Federal Regulations at 21 CFR 172.515.

21 CFR 172.515

European Union and United Kingdom

No EU FL number is on file for p-Menth-1-en-9-ol. That is not a finding either way. The Union List covers defined flavouring substances, so natural complex materials are handled as flavouring preparations under Parts B to F and never receive a number, and substances used as additives sit under Regulation 1333/2008 instead. Confirm the position before EU or UK use.

JECFA (WHO / FAO)

JECFA number 1905, evaluated at the 73rd meeting in 2010. 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. p-Menth-1-en-9-ol appears on the EPA Toxic Substances Control Act Chemical Substance Inventory under CAS 18479-68-0, where EPA names it 3-Cyclohexene-1-ethanol, .beta.,4-dimethyl-.

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: Minty, fresh, herbal, green.

Where it is used

p-Menth-1-en-9-ol is used in beverage, confection, oral care and flavoring, typically as a mint note.

Structurally similar flavor ingredients

Flavor ingredients with a GRAS determination closest to p-Menth-1-en-9-ol by structure. Whether one can replace it is a sensory and regulatory call; the reformulation tool works that through.

MaterialFEMASimilarityOccurrence
p-Menth-1-en-9-al317890%In nature
d-Limonen-10-ol450487%In nature
p-Mentha-1,8-dien-7-ol266477%In nature
Carveol224770%In nature
Dihydrocarveol237970%In nature

More terpenes in this index

p-Menth-3-en-1-ol · Isopulegone · l-8-p-Menthene-1,2-epoxide · Piperitenone oxide · Dihydrocarveol · p-Mentha-1,4-diene

p-Menth-1-en-9-ol FAQ

Is p-Menth-1-en-9-ol on the FEMA GRAS list?

It is. FEMA number 4508 covers p-Menth-1-en-9-ol. It is also codified at 21 CFR 172.515.

What is the FEMA number for p-Menth-1-en-9-ol?

The FEMA number for p-Menth-1-en-9-ol is 4508 and its CAS registry number is 18479-68-0. FEMA files it in the mint flavor category.

Is p-Menth-1-en-9-ol natural or artificial?

Since p-Menth-1-en-9-ol is found in nature, US labeling follows how it was obtained: natural flavor from a natural source and a natural process, artificial when p-Menth-1-en-9-ol is synthesized. The EU and UK follow the same logic without a middle class; Mercosur and Mexico label synthetic p-Menth-1-en-9-ol identical-to-natural.

Is p-Menth-1-en-9-ol approved in the EU?

No EU FL number is on file for p-Menth-1-en-9-ol. It has a JECFA evaluation (JECFA 1905), which the EU list draws on, but the Union List entry itself should be confirmed before EU use.

Has JECFA evaluated p-Menth-1-en-9-ol?

Yes. JECFA number 1905, evaluated at the 73rd meeting in 2010. Conclusion: No safety concern at current levels of intake when used as a flavouring agent.

What is p-Menth-1-en-9-ol used for?

p-Menth-1-en-9-ol is described as minty, fresh, herbal, green. It shows up in beverage, confection, oral care and flavoring.

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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 P-MENTH-1-EN-9-OL under CAS 18479-68-0 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.