Flavor ingredient regulatory record

p-Cresol

p-Cresol is a phenol in the earthy family, FEMA GRAS under FEMA number 2337 (CAS 106-44-5). Its odor is medicinal, phenolic, earthy, smoky.

FEMA
2337
CAS
106-44-5
JECFA
693
EU FL
04.028
Formula
C7H8O
EC
203-398-6

GRAS status: FEMA GRAS, publication 3. Recorded by FDA in the Substances Added to Food inventory under CAS 106-44-5.

Structure

2D structure of p-Cresol
Structure of p-Cresol, C7H8O. Drawn from the canonical SMILES.

Identity

IUPAC name 4-methylphenol
CAS number 106-44-5
FEMA number 2337
Molecular formula C7H8O
Molecular weight 108.14 g/mol
SMILES Cc1ccc(O)cc1
InChIKey IWDCLRJOBJJRNH-UHFFFAOYSA-N
PubChem CID 2879
EC number 203-398-6
FDA UNII 1MXY2UM8NV
EPA DTXSID DTXSID7021869
Chemical class Phenol
Boiling point 202 °C
Flash point 85 °C

Also known as: Phenol, 4-methyl-, 4-Methylphenol, 4-Cresol, p-Cresylic acid, p-Hydroxytoluene, p-Methylphenol, p-Oxytoluene, p-Methylhydroxybenzene, p-Toluol, 4-Hydroxytoluene, p-Tolyl alcohol, 1-Hydroxy-4-methylbenzene.

Can p-Cresol be labeled natural?

Nature makes p-Cresol, which is why the US label turns on process. A natural route gives natural flavor; synthesis gives artificial p-Cresol, same molecule. The EU and UK follow the same logic without a middle class; Mercosur and Mexico label synthetic p-Cresol 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-Cresol is FEMA GRAS under FEMA number 2337. 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 04.028, Annex I Part A under Regulation (EC) 1334/2008, evaluation status approved (EFSA). The UK retains the same list.

JECFA (WHO / FAO)

JECFA number 693, evaluated at the 55th meeting in 2000. 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-Cresol appears on the EPA Toxic Substances Control Act Chemical Substance Inventory under CAS 106-44-5, where EPA names it Phenol, 4-methyl-.

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: Medicinal, phenolic, earthy, smoky.

Taste: Bitter, astringent, medicinal.

Where it is used

p-Cresol is used in beverage, savory dishes, seasoning and smoked products, typically as a earthy note.

Structurally similar flavor ingredients

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

MaterialFEMASimilarityOccurrence
3,4-Xylenol359686%Not determined
Benzyl alcohol213769%In nature
1-Hydroxy-2,5-dimethylbenzene359569%In nature
(E,Z)-4-Methylpent-2-enoic acid418067%In nature
Benzoic acid213167%In nature

More phenols in this index

p-Ethylphenol · m-Cresol · Skatole · Phenol · Resorcinol · Diphenyl

p-Cresol FAQ

Is p-Cresol FEMA GRAS?

Yes. The FEMA Expert Panel lists p-Cresol as GRAS under FEMA number 2337. The Code of Federal Regulations lists it at 21 CFR 172.515.

What are the FEMA and CAS numbers for p-Cresol?

p-Cresol is FEMA 2337, CAS 106-44-5. Its flavor category is earthy.

How is p-Cresol described, and where does it show up?

Flavorists describe p-Cresol as medicinal, phenolic, earthy, smoky. On the palate it is bitter, astringent, medicinal. It is used in beverage, savory dishes, seasoning and smoked products.

What did JECFA conclude about p-Cresol?

JECFA evaluated p-Cresol at the 55th meeting in 2000 under JECFA number 693. The panel concluded: No safety concern at current levels of intake when used as a flavouring agent.

Is p-Cresol on the EU Union List?

Yes. FL 04.028 is the Union List entry for p-Cresol, annex I Part A, under Regulation 1334/2008, and the UK keeps the same list.

Does p-Cresol count as natural in the US and the EU?

The process decides for p-Cresol. It occurs in nature, so a natural-source, natural-process material is natural flavor in the US and synthetic p-Cresol is artificial. The EU and UK follow the same logic without a middle class; Mercosur and Mexico label synthetic p-Cresol 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 P-CRESOL under CAS 106-44-5 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.