Flavor ingredient regulatory record

o-Methylanisole

o-Methylanisole is an ether in the fruity family, FEMA GRAS under FEMA number 2768 (CAS 93-18-5). Its odor is sweet, fruity, floral, anisic, herbal.

FEMA
2768
CAS
93-18-5
JECFA
1258
EU FL
04.033
Formula
C12H12O
EC
202-226-7

GRAS status: FEMA GRAS, publication 3. Recorded by FDA in the Substances Added to Food inventory under CAS 93-18-5.

Structure

2D structure of o-Methylanisole
Structure of o-Methylanisole, C12H12O. Drawn from the canonical SMILES.

Identity

IUPAC name 2-ethoxynaphthalene
CAS number 93-18-5
FEMA number 2768
Molecular formula C12H12O
Molecular weight 172.23 g/mol
SMILES CCOc1ccc2ccccc2c1
InChIKey GUMOJENFFHZAFP-UHFFFAOYSA-N
PubChem CID 7129
EC number 202-226-7
FDA UNII ZF3IS6G3R7
EPA DTXSID DTXSID2049684
Chemical class Ether
Boiling point 250 °C
Flash point 111 °C

Also known as: Naphthalene, 2-ethoxy-, 2-Ethoxynaphthalene, Bromelia, Ethyl β-naphtholate, Ethyl β-naphthyl ether, β-Naphthol ethyl ether, β-Naphthyl ethyl ether, Nerolin II, Nerolin (new), Bromelia (compound), Ethyl 2-naphthyl ether, Nerolin Bromelia.

Can o-Methylanisole be labeled natural?

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

o-Methylanisole is FEMA GRAS under FEMA number 2768. 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 04.033, Annex I Part A under Regulation (EC) 1334/2008, evaluation status approved (EFSA). The UK retains the same list.

JECFA (WHO / FAO)

JECFA number 1258, evaluated at the 61st meeting in 2003. 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. o-Methylanisole appears on the EPA Toxic Substances Control Act Chemical Substance Inventory under CAS 93-18-5, where EPA names it Naphthalene, 2-ethoxy-.

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, floral, anisic, herbal.

Taste: Sweet, slightly spicy, aromatic.

Where it is used

o-Methylanisole is used in beverage, confection, flavoring and baked goods, typically as a fruity note.

Structurally similar flavor ingredients

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

MaterialFEMASimilarityOccurrence
beta-Naphthyl methyl ether470487%Not determined
Butyl beta-naphthyl ether463486%Not determined
6-Methoxyquinoline464081%Not determined
beta-Naphthyl isobutyl ether371981%In nature
Methyl beta-naphthyl ketone272381%Not determined

More ethers in this index

Methyl phenethyl ether · 1,1-Dimethoxyethane · Butyl beta-naphthyl ether · beta-Naphthyl methyl ether · Isoeugenyl ethyl ether · Difurfuryl ether

o-Methylanisole FAQ

Is o-Methylanisole on the FEMA GRAS list?

It is. FEMA number 2768 covers o-Methylanisole. It is also codified at 21 CFR 172.515.

What is the FEMA number for o-Methylanisole?

The FEMA number for o-Methylanisole is 2768 and its CAS registry number is 93-18-5. FEMA files it in the fruity flavor category.

Is o-Methylanisole natural or artificial?

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

Is o-Methylanisole approved in the EU?

o-Methylanisole is on the EU Union List of flavouring substances as FL 04.033 (Annex I Part A) under Regulation 1334/2008.

Has JECFA evaluated o-Methylanisole?

Yes. JECFA number 1258, evaluated at the 61st meeting in 2003. Conclusion: No safety concern at current levels of intake when used as a flavouring agent.

What is o-Methylanisole used for?

o-Methylanisole is described as sweet, fruity, floral, anisic, herbal. On the palate it is sweet, slightly spicy, aromatic. It shows up in beverage, confection, flavoring and baked goods.

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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-NAPHTHYL ETHYL ETHER under CAS 93-18-5 and carries its FEMA number, its JECFA flavor number. The inventory is searchable at FDA. FDA records its technical effect as flavor enhancer, 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.