Delta-Undecalactone
FRUITS, VEGETABLES AND NUTS / lactonic · coconut · creamy
Delta-Undecalactone
| Category | FRUITS, VEGETABLES AND NUTS |
| Subcategory | lactonic · coconut · creamy |
| Origin | |
| Volatility | Heart Note |
| Botanical | N/A — synthetic molecule |
| Appearance | colorless to pale yellow clear liquid |
| Producing Countries | Synthetic — manufactured worldwide (China, Europe, United States) |
| Pyramid | Heart |
Creamy, peach-skin, waxy-lactonic. Delta-undecalactone (CAS 710-04-3) is waxier and more persistent than shorter lactones, bridging peach and coconut.
Scent
Evolution over time
Immediately
Immediately
Creamy peach-coconut, smooth
After a few hours
After a few hours
Waxy-creamy warmth
After a few days
After a few days
Long-lasting waxy-lactonic base
The Full Story
Did You Know?
Did you know?
As lactone chain length increases, the scent shifts from fruity-creamy to waxy-fatty. Delta-undecalactone sits at the sweet spot: long enough for persistence, short enough to retain creaminess.
Extraction & Chemistry
Extraction method: Found at trace levels in fruits. Produced synthetically for commercial use.
| Molecular Formula | C₁₁H₂₀O₂ |
| CAS Number | 710-04-3 |
| Botanical Name | N/A — synthetic molecule |
| IFRA Status | No known restrictions |
| Synonyms | Coconut lactone, 1-Undecanolide |
| Physical Properties | |
| Appearance | colorless to pale yellow clear liquid |
| Boiling Point | 152.00 to 155.00 °C @ 10.50 mm Hg |
| Flash Point | > 230.00 °F TCC ( > 110.00 °C ) |
| Specific Gravity | 0.956 to 0.961 @ 25.00 °C |
| Refractive Index | 1.457 to 1.461 @ 20.00 °C |
In Perfumery
Base modifier providing creamy persistence. CAS 710-04-3. Waxier and more persistent than shorter lactones. Anchors fruity-creamy compositions.
