Flavor ingredient regulatory record

3-Ethylpyridine

3-Ethylpyridine is a pyridine in the spice family, FEMA GRAS under FEMA number 3394 (CAS 536-78-7). Its odor is earthy, spicy, nutty, smoky.

FEMA
3394
CAS
536-78-7
JECFA
1315
EU FL
14.061
Formula
C7H9N
EC
208-647-2

GRAS status: FEMA GRAS, publication 7. Recorded by FDA in the Substances Added to Food inventory under CAS 536-78-7.

Structure

2D structure of 3-Ethylpyridine
Structure of 3-Ethylpyridine, C7H9N. Drawn from the canonical SMILES.

Identity

IUPAC name 3-ethylpyridine
CAS number 536-78-7
FEMA number 3394
Molecular formula C7H9N
Molecular weight 107.16 g/mol
SMILES CCc1cccnc1
InChIKey MFEIKQPHQINPRI-UHFFFAOYSA-N
PubChem CID 10823
EC number 208-647-2
FDA UNII A25I3EZ88V
EPA DTXSID DTXSID6060212
Chemical class Pyridine
Boiling point 155 °C
Flash point 62 °C

Also known as: Pyridine, 3-ethyl-, β-Lutidine, β-Ethylpyridine, pyridine, 3-ethyl-, beta-ethylpyridine, beta-lutidine, 3-ethyl pyridine, 3-ethyl-pyridine, 5-ethylpyridine, lutidine, beta-, 3-(c2h5)-pyridine, 3-ethylpyridine, 98%.

Can 3-Ethylpyridine be labeled natural?

Since 3-Ethylpyridine is found in nature, US labeling follows how it was obtained: natural flavor from a natural source and a natural process, artificial when 3-Ethylpyridine is synthesized. The EU and UK follow the same logic without a middle class; Mercosur and Mexico label synthetic 3-Ethylpyridine 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

3-Ethylpyridine is FEMA GRAS under FEMA number 3394. 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 14.061, Annex I Part A under Regulation (EC) 1334/2008, evaluation status approved (EFSA). The UK retains the same list.

JECFA (WHO / FAO)

JECFA number 1315, evaluated at the 63rd meeting in 2004. 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. 3-Ethylpyridine appears on the EPA Toxic Substances Control Act Chemical Substance Inventory under CAS 536-78-7, where EPA names it Pyridine, 3-ethyl-.

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: Earthy, spicy, nutty, smoky.

Where it is used

3-Ethylpyridine is used in savory dishes, seasonings, snack foods and meat products, typically as a spice note.

Structurally similar flavor ingredients

Flavor ingredients with a GRAS determination closest to 3-Ethylpyridine by structure. Whether one can replace it is a sensory and regulatory call; the reformulation tool works that through.

MaterialFEMASimilarityOccurrence
2-Ethylpyrazine328196%In nature
2-Methoxypyridine463985%Not determined
2-Propylpyridine406581%In nature
3-Acetylpyridine342478%In nature
Anisole209777%In nature

More pyridines in this index

2-Propylpyridine · 2-Isobutylpyridine · 2,6-Dimethylpyridine · 2,4-Dimethylpyridine · 2-Pentylpyridine · 3-Isobutylpyridine

3-Ethylpyridine FAQ

Does 3-Ethylpyridine have FEMA GRAS status?

3-Ethylpyridine holds FEMA GRAS status under FEMA number 3394. It is also codified at 21 CFR 172.515.

How do I cite 3-Ethylpyridine by FEMA or CAS number?

Cite 3-Ethylpyridine as FEMA 3394 or CAS 536-78-7; both point to the same entry. FEMA files it in the spice flavor category.

Can 3-Ethylpyridine be labeled a natural flavor?

3-Ethylpyridine occurs in nature, so the label depends on the route: 3-Ethylpyridine won from a natural source by a physical, enzymatic or microbiological process is natural flavor in the United States, and synthesized 3-Ethylpyridine is artificial. The EU and UK grant the natural claim only to that natural route; Mercosur and Mexico call synthetic material identical-to-natural.

Can 3-Ethylpyridine be used in the EU and UK?

3-Ethylpyridine is on the EU Union List of flavouring substances as FL 14.061 (Annex I Part A) under Regulation 1334/2008.

Has JECFA evaluated 3-Ethylpyridine?

Yes. JECFA number 1315, evaluated at the 63rd meeting in 2004. Conclusion: No safety concern at current levels of intake when used as a flavouring agent.

What does 3-Ethylpyridine smell and taste like, and where is it used?

The odor of 3-Ethylpyridine is earthy, spicy, nutty, smoky. Typical uses are savory dishes, seasonings, snack foods and meat products.

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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 3-ETHYLPYRIDINE under CAS 536-78-7 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.