Flavor ingredient regulatory record
(+/-)-2-(5-Methyl-5-vinyl-tetrahydrofuran-2-yl)propionaldehyde
(+/-)-2-(5-Methyl-5-vinyl-tetrahydrofuran-2-yl)propionaldehyde is an aldehyde in the fruity family, FEMA GRAS under FEMA number 4058 (CAS 51685-39-3). Its odor is sweet, fruity, tropical, floral, nutty.
- FEMA
- 4058
- CAS
- 51685-39-3
- JECFA
- 1457
GRAS status: FEMA GRAS, publication 21. Recorded by FDA in the Substances Added to Food inventory under CAS 67920-63-2.
Structure
Under review
The structure for (+/-)-2-(5-Methyl-5-vinyl-tetrahydrofuran-2-yl)propionaldehyde is still under identity review, so no drawing is shown until the record is confirmed.
Identity
Also known as: lilac aldehyde, 2-(5-methyl-5-vinyltetrahydrofuran-2-yl)propanal, 2-(5-ethenyl-5-methyltetrahydrofuran-2-yl)propanal, 2-furanacetaldehyde, 5-ethenyltetrahydro-alpha,5-dimethyl-, (+-)-2-(5-methyl-5-vinyltetrahydrofuran-2-yl)propionaldehyde, (+-)-lilac aldehyde, tetrahydro-alpha,5-dimethyl-5-vinyl-2-furanacetaldehyde, 2-furanacetaldehyde, 5-ethenyltetrahydro-.alpha.,5-dimethyl-, tetrahydro-.alpha.,5-dimethyl-5-vinyl-2-furanacetaldehyde, (+-)-2-(5-methyl-5-vinyl tetrahydrofuran-2-yl) propionaldehyde, (+-)-2-(5-methyl-5-vinyl-tetrahydrofuran-2-yl)propionaldehyde, (+-)-2-(5-methyl-5-vinyl tetrahydrofuran-2-yl) propionaldehyde [fhfi].
Can (+/-)-2-(5-Methyl-5-vinyl-tetrahydrofuran-2-yl)propionaldehyde be labeled natural?
Since (+/-)-2-(5-Methyl-5-vinyl-tetrahydrofuran-2-yl)propionaldehyde is found in nature, US labeling follows how it was obtained: natural flavor from a natural source and a natural process, artificial when (+/-)-2-(5-Methyl-5-vinyl-tetrahydrofuran-2-yl)propionaldehyde is synthesized. The EU and UK grant the natural claim only to that natural route; Mercosur and Mexico call synthetic material 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-(5-Methyl-5-vinyl-tetrahydrofuran-2-yl)propionaldehyde is FEMA GRAS under FEMA number 4058. It is cited in the Code of Federal Regulations at 21 CFR 172.515.
European Union and United Kingdom
No EU FL number is on file for (+/-)-2-(5-Methyl-5-vinyl-tetrahydrofuran-2-yl)propionaldehyde. That is not a finding either way. The Union List covers defined flavouring substances, so natural complex materials are handled as flavouring preparations under Parts B to F and never receive a number, and substances used as additives sit under Regulation 1333/2008 instead. Confirm the position before EU or UK use.
JECFA (WHO / FAO)
JECFA number 1457, evaluated at the 69th meeting in 2008. no safety concern at current levels of intake.
Other US flags
Not on the California Proposition 65 list.
Odor and taste
Odor: Sweet, fruity, tropical, floral, nutty.
Where it is used
(+/-)-2-(5-Methyl-5-vinyl-tetrahydrofuran-2-yl)propionaldehyde is used in beverage, confection, fruit flavors, bakery and desserts, typically as a fruity note.
Structurally similar flavor ingredients
Flavor ingredients with a GRAS determination closest to (+/-)-2-(5-Methyl-5-vinyl-tetrahydrofuran-2-yl)propionaldehyde by structure. Whether one can replace it is a sensory and regulatory call; the reformulation tool works that through.
| Material | FEMA | Similarity | Occurrence |
|---|---|---|---|
| Linalool oxide pyranoid | 4593 | 62% | In nature |
| Perillaldehyde propyleneglycol acetal | 4530 | 60% | Not determined |
More aldehydes in this index
Octadec-9-enal · (2E, 4E)-undeca-2,4-dienal · 2-trans,6-trans Nonadienal · 2-Ethyl-2-heptenal · 10-Undecenal · 2,8-Dithianon-4-ene-4-carboxaldehyde
(+/-)-2-(5-Methyl-5-vinyl-tetrahydrofuran-2-yl)propionaldehyde FAQ
Is (+/-)-2-(5-Methyl-5-vinyl-tetrahydrofuran-2-yl)propionaldehyde on the FEMA GRAS list?
It is. FEMA number 4058 covers (+/-)-2-(5-Methyl-5-vinyl-tetrahydrofuran-2-yl)propionaldehyde. It is also codified at 21 CFR 172.515.
What is the FEMA number for (+/-)-2-(5-Methyl-5-vinyl-tetrahydrofuran-2-yl)propionaldehyde?
The FEMA number for (+/-)-2-(5-Methyl-5-vinyl-tetrahydrofuran-2-yl)propionaldehyde is 4058 and its CAS registry number is 51685-39-3. FEMA files it in the fruity flavor category.
Is (+/-)-2-(5-Methyl-5-vinyl-tetrahydrofuran-2-yl)propionaldehyde natural or artificial?
(+/-)-2-(5-Methyl-5-vinyl-tetrahydrofuran-2-yl)propionaldehyde occurs in nature, so the label depends on the route: (+/-)-2-(5-Methyl-5-vinyl-tetrahydrofuran-2-yl)propionaldehyde won from a natural source by a physical, enzymatic or microbiological process is natural flavor in the United States, and synthesized (+/-)-2-(5-Methyl-5-vinyl-tetrahydrofuran-2-yl)propionaldehyde is artificial. In the EU and UK the natural claim likewise needs the natural route, while Mercosur and Mexico keep a third class, identical-to-natural, for the synthetic material.
Is (+/-)-2-(5-Methyl-5-vinyl-tetrahydrofuran-2-yl)propionaldehyde approved in the EU?
No EU FL number is on file for (+/-)-2-(5-Methyl-5-vinyl-tetrahydrofuran-2-yl)propionaldehyde. It has a JECFA evaluation (JECFA 1457), which the EU list draws on, but the Union List entry itself should be confirmed before EU use.
Has JECFA evaluated (+/-)-2-(5-Methyl-5-vinyl-tetrahydrofuran-2-yl)propionaldehyde?
Yes. JECFA number 1457, evaluated at the 69th meeting in 2008. Conclusion: no safety concern at current levels of intake.
What is (+/-)-2-(5-Methyl-5-vinyl-tetrahydrofuran-2-yl)propionaldehyde used for?
(+/-)-2-(5-Methyl-5-vinyl-tetrahydrofuran-2-yl)propionaldehyde is described as sweet, fruity, tropical, floral, nutty. It shows up in beverage, confection, fruit flavors, bakery and desserts.
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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-(5-METHYL-5-VINYLTETRAHYDROFURAN-2-YL)PROPIONALDEHYDE under CAS 67920-63-2 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.