Flavor ingredient regulatory record
d-Limonen-10-ol
d-Limonen-10-ol is a terpene in the citrus family, FEMA GRAS under FEMA number 4504 (CAS 38142-45-9). Its odor is citrusy, fresh, orange, zesty.
- FEMA
- 4504
- CAS
- 38142-45-9
- JECFA
- 1903
- Formula
- C10H16O
GRAS status: FEMA GRAS, publication 24. Recorded by FDA in the Substances Added to Food inventory under CAS 38142-45-9.
Structure
Identity
Also known as: 3-Cyclohexene-1-ethanol, 4-methyl-β-methylene-, (1R)-, 3-Cyclohexene-1-ethanol, 4-methyl-β-methylene-, (R)-, (1R)-4-Methyl-β-methylene-3-cyclohexene-1-ethanol, (+)-(R)-p-Mentha-1,8(10)-dien-9-ol, (+)-Limonen-10-ol, (R)-2-(4-Methylcyclohex-3-en-1-yl)prop-2-en-1-ol, 2-[(1R)-4-Methylcyclohex-3-en-1-yl]prop-2-en-1-ol, limonen-10-ol, (+)-, (+)-limonen-10-ol, (+)-(r)-p-mentha-1,8(10)-dien-9-ol, 3-cyclohexene-1-ethanol, 4-methyl-.beta.-methylene-, (1r)-, 3-cyclohexene-1-ethanol, 4-methyl-.beta.-methylene-, (r)-.
Can d-Limonen-10-ol be labeled natural?
d-Limonen-10-ol occurs in nature, so the label depends on the route: d-Limonen-10-ol won from a natural source by a physical, enzymatic or microbiological process is natural flavor in the United States, and synthesized d-Limonen-10-ol 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.
- 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
d-Limonen-10-ol is FEMA GRAS under FEMA number 4504. 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 d-Limonen-10-ol. 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 1903, evaluated at the 73rd meeting in 2010. No safety concern at current levels of intake when used as a flavouring agent.
Other US flags
Not on the California Proposition 65 list.
Odor and taste
Odor: Citrusy, fresh, orange, zesty.
Taste: Citrus, refreshing, slightly sweet.
Where it is used
d-Limonen-10-ol is used in beverage, confection, flavoring, cooking and aromatherapy, typically as a citrus note.
Structurally similar flavor ingredients
Flavor ingredients with a GRAS determination closest to d-Limonen-10-ol by structure. Whether one can replace it is a sensory and regulatory call; the reformulation tool works that through.
| Material | FEMA | Similarity | Occurrence |
|---|---|---|---|
| p-Mentha-1,8-dien-7-ol | 2664 | 95% | In nature |
| Carveol | 2247 | 88% | In nature |
| p-Menth-1-en-9-ol | 4508 | 87% | In nature |
More terpenes in this index
Valencene · d-Limonene · Nootkatone · p-Mentha-1,3-diene · (E,R)-3,7-Dimethyl-1,5,7-octatrien-3-ol · (-)-Sclareol
d-Limonen-10-ol FAQ
Does d-Limonen-10-ol have FEMA GRAS status?
d-Limonen-10-ol holds FEMA GRAS status under FEMA number 4504. It is also codified at 21 CFR 172.515.
How do I cite d-Limonen-10-ol by FEMA or CAS number?
Cite d-Limonen-10-ol as FEMA 4504 or CAS 38142-45-9; both point to the same entry. FEMA files it in the citrus flavor category.
Can d-Limonen-10-ol be labeled a natural flavor?
Since d-Limonen-10-ol is found in nature, US labeling follows how it was obtained: natural flavor from a natural source and a natural process, artificial when d-Limonen-10-ol is synthesized. 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 d-Limonen-10-ol approved in the EU?
No EU FL number is on file for d-Limonen-10-ol. It has a JECFA evaluation (JECFA 1903), which the EU list draws on, but the Union List entry itself should be confirmed before EU use.
Has JECFA evaluated d-Limonen-10-ol?
Yes. JECFA number 1903, evaluated at the 73rd meeting in 2010. Conclusion: No safety concern at current levels of intake when used as a flavouring agent.
What does d-Limonen-10-ol smell and taste like, and where is it used?
The odor of d-Limonen-10-ol is citrusy, fresh, orange, zesty. On the palate it is citrus, refreshing, slightly sweet. Typical uses are beverage, confection, flavoring, cooking and aromatherapy.
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Guides: What Is FEMA GRAS? · Natural vs artificial · Filing a GRAS notification
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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 D-LIMONEN-10-OL under CAS 38142-45-9 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.