Flavor ingredient regulatory record

p-Menth-8-en-1-ol

p-Menth-8-en-1-ol is an alcohol in the mint family, FEMA GRAS under FEMA number 3564 (CAS 138-87-4). Its odor is fresh, minty, herbal, green.

FEMA
3564
CAS
138-87-4
JECFA
374
EU FL
02.097
Formula
C10H18O
EC
205-342-6

GRAS status: FEMA GRAS, publication 11. Recorded by FDA in the Substances Added to Food inventory under CAS 138-87-4.

Structure

2D structure of p-Menth-8-en-1-ol
Structure of p-Menth-8-en-1-ol, C10H18O. Drawn from the canonical SMILES.

Identity

IUPAC name 1-methyl-4-prop-1-en-2-ylcyclohexan-1-ol
CAS number 138-87-4
FEMA number 3564
Molecular formula C10H18O
Molecular weight 154.25 g/mol
SMILES C=C(C)C1CCC(C)(O)CC1
InChIKey RUJPNZNXGCHGID-UHFFFAOYSA-N
PubChem CID 8748
EC number 205-342-6
FDA UNII XS86XKC2VT
EPA DTXSID DTXSID7041209
Chemical class Alcohol
Boiling point 210 °C
Flash point 22 °C

Also known as: Cyclohexanol, 1-methyl-4-(1-methylethenyl)-, 1-Methyl-4-(1-methylethenyl)cyclohexanol, β-Terpineol, 4-(1-Methylethenyl)-1-methyl-cyclohexanol, 1-Methyl-4-(prop-1-en-2-yl)cyclohexan-1-ol, beta-terpineol, 1-methyl-4-(prop-1-en-2-yl)cyclohexan-1-ol, cyclohexanol, 1-methyl-4-(1-methylethenyl)-, 1-methyl-4-(1-methylethenyl)cyclohexanol, 1-methyl-4-isopropenylcyclohexan-1-ol, 4-isopropenyl-1-methyl-1-cyclohexanol, beta-terpinol.

Can p-Menth-8-en-1-ol be labeled natural?

p-Menth-8-en-1-ol occurs in nature, so the label depends on the route: p-Menth-8-en-1-ol won from a natural source by a physical, enzymatic or microbiological process is natural flavor in the United States, and synthesized p-Menth-8-en-1-ol is artificial. The EU and UK grant the natural claim only to that natural route; Mercosur and Mexico call synthetic material 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-8-en-1-ol is FEMA GRAS under FEMA number 3564. 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 02.097, Annex I Part A under Regulation (EC) 1334/2008, evaluation status approved (JECFA). The UK retains the same list.

JECFA (WHO / FAO)

JECFA number 374, evaluated at the 51st meeting in 1998. 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-8-en-1-ol appears on the EPA Toxic Substances Control Act Chemical Substance Inventory under CAS 138-87-4, where EPA names it Cyclohexanol, 1-methyl-4-(1-methylethenyl)-.

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: Fresh, minty, herbal, green.

Where it is used

p-Menth-8-en-1-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-8-en-1-ol by structure. Whether one can replace it is a sensory and regulatory call; the reformulation tool works that through.

MaterialFEMASimilarityOccurrence
p-Menth-3-en-1-ol356389%In nature
8-p-Menthene-1,2-diol440988%In nature
alpha-Terpineol304586%In nature
Linalool263584%In nature
d-Limonene263382%In nature

More alcohols in this index

D,L-Menthol(+/-)-propylene glycol carbonate · 2-(l-Menthoxy)ethanol · (-)-Menthol 1- and 2-propylene glycol carbonate · p-Menthane-3,8-diol · 8-p-Menthene-1,2-diol · 3-Octanol

p-Menth-8-en-1-ol FAQ

Is p-Menth-8-en-1-ol FEMA GRAS?

Yes. The FEMA Expert Panel lists p-Menth-8-en-1-ol as GRAS under FEMA number 3564. It is also codified at 21 CFR 172.515.

What are the FEMA and CAS numbers for p-Menth-8-en-1-ol?

p-Menth-8-en-1-ol is FEMA 3564, CAS 138-87-4. FEMA files it in the mint flavor category.

Does p-Menth-8-en-1-ol count as natural in the US and the EU?

Since p-Menth-8-en-1-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-8-en-1-ol is synthesized. The EU and UK grant the natural claim only to that natural route; Mercosur and Mexico call synthetic material identical-to-natural.

Is p-Menth-8-en-1-ol on the EU Union List?

p-Menth-8-en-1-ol is on the EU Union List of flavouring substances as FL 02.097 (Annex I Part A) under Regulation 1334/2008.

Has JECFA evaluated p-Menth-8-en-1-ol?

Yes. JECFA number 374, evaluated at the 51st meeting in 1998. Conclusion: No safety concern at current levels of intake when used as a flavouring agent.

How is p-Menth-8-en-1-ol described, and where does it show up?

Flavorists describe p-Menth-8-en-1-ol as fresh, minty, herbal, green. It is used 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 BETA-TERPINEOL under CAS 138-87-4 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.