Flavor ingredient regulatory record

3,7,11-Trimethyl-2,6,10-dodecatrienal

3,7,11-Trimethyl-2,6,10-dodecatrienal is an aldehyde in the fruity family, FEMA GRAS under FEMA number 4019 (CAS 19317-11-4). Its odor is fruity, green, citrus, fresh, herbal.

FEMA
4019
CAS
19317-11-4
JECFA
1228
EU FL
05.148
Formula
C15H24O
EC
242-957-9

GRAS status: FEMA GRAS, publication 20. Recorded by FDA in the Substances Added to Food inventory under CAS 19317-11-4.

Structure

2D structure of 3,7,11-Trimethyl-2,6,10-dodecatrienal
Structure of 3,7,11-Trimethyl-2,6,10-dodecatrienal, C15H24O. Drawn from the canonical SMILES.

Identity

IUPAC name 3,7,11-trimethyldodeca-2,6,10-trienal
CAS number 19317-11-4
FEMA number 4019
Molecular formula C15H24O
Molecular weight 220.36 g/mol
SMILES CC(C)=CCCC(C)=CCCC(C)=CC=O
InChIKey YHRUHBBTQZKMEX-UHFFFAOYSA-N
PubChem CID 68150
EC number 242-957-9
FDA UNII R265G157TQ
EPA DTXSID DTXSID80862062
Chemical class Aldehyde
Boiling point 100 °C
Flash point 33 °C

Also known as: 2,6,10-Dodecatrienal, 3,7,11-trimethyl-, Farnesal, Farnesone, 3,7,11-trimethyldodeca-2,6,10-trienal, 2,6,10-dodecatrienal, 3,7,11-trimethyl-, farnesal, farnesone, 2,6,10-trimethyl-2,6,10-dodecatrien-12-al, db-087246, 3,7,11-trimethyldodeca-2,6,10-trien-1-al.

Can 3,7,11-Trimethyl-2,6,10-dodecatrienal be labeled natural?

The process decides for 3,7,11-Trimethyl-2,6,10-dodecatrienal. It occurs in nature, so a natural-source, natural-process material is natural flavor in the US and synthetic 3,7,11-Trimethyl-2,6,10-dodecatrienal is artificial. The EU and UK follow the same logic without a middle class; Mercosur and Mexico label synthetic 3,7,11-Trimethyl-2,6,10-dodecatrienal 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

3,7,11-Trimethyl-2,6,10-dodecatrienal is FEMA GRAS under FEMA number 4019. 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 05.148, Annex I Part A under Regulation (EC) 1334/2008, evaluation status approved (EFSA). The UK retains the same list.

JECFA (WHO / FAO)

JECFA number 1228, evaluated at the 61st meeting in 2003. no safety concern at current levels of intake.

JECFA monograph

Other US flags

Not on the California Proposition 65 list.

TSCA Inventory status

A flavor ingredient is also an industrial chemical. 3,7,11-Trimethyl-2,6,10-dodecatrienal appears on the EPA Toxic Substances Control Act Chemical Substance Inventory under CAS 19317-11-4, where EPA names it 2,6,10-Dodecatrienal, 3,7,11-trimethyl-.

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 regulatory flags

Flag EPA definition What it obliges
PMN Indicates a commenced PMN substance. Nothing new. The substance already went through premanufacture review and someone filed a notice of commencement, which is why it is on the Inventory. It is an existing chemical and needs no new premanufacture notice. Read more

PMN does not establish: The flag records how the substance arrived, not what may be done with it. Check the flags beside it.

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: Fruity, green, citrus, fresh, herbal.

Where it is used

3,7,11-Trimethyl-2,6,10-dodecatrienal is used in beverage, confection, fruit flavors, savory dishes and seasonings, typically as a fruity note.

Structurally similar flavor ingredients

Flavor ingredients with a GRAS determination closest to 3,7,11-Trimethyl-2,6,10-dodecatrienal by structure. Whether one can replace it is a sensory and regulatory call; the reformulation tool works that through.

MaterialFEMASimilarityOccurrence
2,6,10-Trimethyl-2,6,10-pentadecatrien-14-one344290%In nature
Farnesol247889%In nature
Pseudoionone429988%In nature
(+/-)-Dihydrofarnesol403187%In nature
Neryl isovalerate277885%In nature

More aldehydes in this index

2-Ethyl-2-hexenal · 2-Hydroxy-4-methylbenzaldehyde · 2-(Methylthio)methyl-2-butenal · p-Menth-1-en-9-al · Decanal dimethyl acetal · Paraldehyde

3,7,11-Trimethyl-2,6,10-dodecatrienal FAQ

Is 3,7,11-Trimethyl-2,6,10-dodecatrienal on the FEMA GRAS list?

It is. FEMA number 4019 covers 3,7,11-Trimethyl-2,6,10-dodecatrienal. The Code of Federal Regulations lists it at 21 CFR 172.515.

What is the FEMA number for 3,7,11-Trimethyl-2,6,10-dodecatrienal?

The FEMA number for 3,7,11-Trimethyl-2,6,10-dodecatrienal is 4019 and its CAS registry number is 19317-11-4. Its flavor category is fruity.

What is 3,7,11-Trimethyl-2,6,10-dodecatrienal used for?

3,7,11-Trimethyl-2,6,10-dodecatrienal is described as fruity, green, citrus, fresh, herbal. It shows up in beverage, confection, fruit flavors, savory dishes and seasonings.

What did JECFA conclude about 3,7,11-Trimethyl-2,6,10-dodecatrienal?

JECFA evaluated 3,7,11-Trimethyl-2,6,10-dodecatrienal at the 61st meeting in 2003 under JECFA number 1228. The panel concluded: no safety concern at current levels of intake.

Is 3,7,11-Trimethyl-2,6,10-dodecatrienal approved in the EU?

Yes. FL 05.148 is the Union List entry for 3,7,11-Trimethyl-2,6,10-dodecatrienal, annex I Part A, under Regulation 1334/2008, and the UK keeps the same list.

Is 3,7,11-Trimethyl-2,6,10-dodecatrienal natural or artificial?

Nature makes 3,7,11-Trimethyl-2,6,10-dodecatrienal, which is why the US label turns on process. A natural route gives natural flavor; synthesis gives artificial 3,7,11-Trimethyl-2,6,10-dodecatrienal, 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 FARNESAL under CAS 19317-11-4 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.