Flavor ingredient regulatory record

2-Methoxy-4-vinylphenol

2-Methoxy-4-vinylphenol is a phenol in the floral family, FEMA GRAS under FEMA number 2675 (CAS 7786-61-0). Its odor is sweet, floral, spicy, woody.

FEMA
2675
CAS
7786-61-0
JECFA
725
EU FL
04.009
Formula
C9H10O2
EC
232-101-2

GRAS status: FEMA GRAS, publication 3. Recorded by FDA in the Substances Added to Food inventory under CAS 7786-61-0.

Structure

2D structure of 2-Methoxy-4-vinylphenol
Structure of 2-Methoxy-4-vinylphenol, C9H10O2. Drawn from the canonical SMILES.

Identity

IUPAC name 4-ethenyl-2-methoxyphenol
CAS number 7786-61-0
FEMA number 2675
Molecular formula C9H10O2
Molecular weight 150.18 g/mol
SMILES C=Cc1ccc(O)c(OC)c1
InChIKey YOMSJEATGXXYPX-UHFFFAOYSA-N
PubChem CID 332
EC number 232-101-2
FDA UNII DA069CTH0O
EPA DTXSID DTXSID7052529
Chemical class Phenol
Boiling point 224 °C
Flash point 98 °C

Also known as: Phenol, 4-ethenyl-2-methoxy-, Phenol, 2-methoxy-4-vinyl-, Guaiacol, 4-vinyl-, 4-Ethenyl-2-methoxyphenol, 4-Vinylguaiacol, o-Methoxy-p-vinylphenol, p-Vinylguaiacol, 4-Hydroxy-3-methoxyvinylbenzene, 3-Methoxy-4-hydroxystyrene, 4-Hydroxy-3-methoxystyrene, 4-Vinyl-2-methoxyphenol, 2-Methoxy-4-ethenylphenol.

Can 2-Methoxy-4-vinylphenol be labeled natural?

The process decides for 2-Methoxy-4-vinylphenol. It occurs in nature, so a natural-source, natural-process material is natural flavor in the US and synthetic 2-Methoxy-4-vinylphenol is artificial. The EU and UK follow the same logic without a middle class; Mercosur and Mexico label synthetic 2-Methoxy-4-vinylphenol 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

2-Methoxy-4-vinylphenol is FEMA GRAS under FEMA number 2675. 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 04.009, Annex I Part A under Regulation (EC) 1334/2008, evaluation status approved (EFSA). The UK retains the same list.

JECFA (WHO / FAO)

JECFA number 725, 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. Listed on the EPA TSCA inventory.

TSCA Inventory status

A flavor ingredient is also an industrial chemical. 2-Methoxy-4-vinylphenol appears on the EPA Toxic Substances Control Act Chemical Substance Inventory under CAS 7786-61-0, where EPA names it Phenol, 4-ethenyl-2-methoxy-.

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, floral, spicy, woody. Detectable at about 0.03 ppm.

Where it is used

2-Methoxy-4-vinylphenol is used in beverage, confection, flavoring and cosmetics, typically as a floral note.

Structurally similar flavor ingredients

Flavor ingredients with a GRAS determination closest to 2-Methoxy-4-vinylphenol by structure. Whether one can replace it is a sensory and regulatory call; the reformulation tool works that through.

MaterialFEMASimilarityOccurrence
5-Ethyl-2-methylpyridine354682%In nature
2-Methoxy-6-(2-propenyl)phenol449080%In nature
2-Methyl-5-vinylpyrazine321171%In nature
4-Ethylguaiacol243670%In nature
Benzaldehyde212770%In nature

More phenols in this index

4-Propenylphenol · Anisole · 1,2-Dimethoxybenzene · m-Dimethoxybenzene · p-Dimethoxybenzene · Acetanisole

2-Methoxy-4-vinylphenol FAQ

Is 2-Methoxy-4-vinylphenol on the FEMA GRAS list?

It is. FEMA number 2675 covers 2-Methoxy-4-vinylphenol. The Code of Federal Regulations lists it at 21 CFR 172.515.

What is the FEMA number for 2-Methoxy-4-vinylphenol?

The FEMA number for 2-Methoxy-4-vinylphenol is 2675 and its CAS registry number is 7786-61-0. Its flavor category is floral.

What is 2-Methoxy-4-vinylphenol used for?

2-Methoxy-4-vinylphenol is described as sweet, floral, spicy, woody. Its odor threshold is about 0.03 ppm. It shows up in beverage, confection, flavoring and cosmetics.

What did JECFA conclude about 2-Methoxy-4-vinylphenol?

JECFA evaluated 2-Methoxy-4-vinylphenol at the 55th meeting in 2000 under JECFA number 725. The panel concluded: No safety concern at current levels of intake when used as a flavouring agent.

Is 2-Methoxy-4-vinylphenol approved in the EU?

Yes. FL 04.009 is the Union List entry for 2-Methoxy-4-vinylphenol, annex I Part A, under Regulation 1334/2008, and the UK keeps the same list.

Is 2-Methoxy-4-vinylphenol natural or artificial?

Nature makes 2-Methoxy-4-vinylphenol, which is why the US label turns on process. A natural route gives natural flavor; synthesis gives artificial 2-Methoxy-4-vinylphenol, same molecule. The EU and UK grant the natural claim only to that natural route; Mercosur and Mexico call synthetic material 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 2-METHOXY-4-VINYLPHENOL under CAS 7786-61-0 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.