ETHYL UNDECANOATE
Synonym(s):Undecanoic acid ethyl ester
- CAS NO.：627-90-7
- Empirical Formula: C13H26O2
- Molecular Weight: 214.34
- MDL number: MFCD00008958
- EINECS: 211-018-5
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-06-24 18:39:39
What is ETHYL UNDECANOATE?
Chemical properties
CLEAR COLOURLESS LIQUID
Chemical properties
Ethyl undecanoate has a coconut-like odor
Occurrence
Reported found in apple, butter, grape, brandy, wheat bread, rum, whiskey, wine, cognac, butter, plum brandy and sake.
The Uses of ETHYL UNDECANOATE
Ethyl undecanoate was used to prepare the corresponding aldehyde in the presence of Lithium diisobutyl-t-butoxyaluminum hydride (LDBBA).
Preparation
By reduction of the l-undecen-ll-oic acid ethyl ester with hydrogen in the presence of Ni at 180°C; or by direct esterification of n-undecanoic acid with ethyl alcohol under reflux.
Definition
ChEBI: Ethyl undecanoate is a fatty acid ester.
Aroma threshold values
Aroma characteristics at 1.0%: rum-like, estry, fatty and waxy, soapy with creamy nuances.
Taste threshold values
Taste characteristics at 15 ppm: cheesy, buttery, creamy, rum and cognac-like, with fruity apple and banana nuances. Taste characteristics at 25 ppm: waxy, creamy, slight fruity with coconut and cherry nuance.
Synthesis Reference(s)
Tetrahedron Letters, 30, p. 689, 1989 DOI: 10.1016/S0040-4039(01)80283-5
Chemical and Pharmaceutical Bulletin, 43, p. 2075, 1995 DOI: 10.1248/cpb.43.2075
General Description
Ethyl undecanoate is a volatile fatty acid ethyl ester (FAEE) commonly found in alcoholic beverages. It is also reported to occur in fermented wheat germ extract.
Properties of ETHYL UNDECANOATE
| Melting point: | -15 °C |
| Boiling point: | 105 °C/4 mmHg (lit.) |
| Density | 0.859 g/mL at 25 °C (lit.) |
| refractive index | n |
| FEMA | 3492 | ETHYL UNDECANOATE |
| Flash point: | >230 °F |
| storage temp. | Sealed in dry,Room Temperature |
| form | clear liquid |
| color | Colorless to Almost colorless |
| Odor | at 100.00 %. soapy waxy fatty cognac coconut |
| JECFA Number | 36 |
| BRN | 1767805 |
| Dielectric constant | 3.5499999999999998 |
| CAS DataBase Reference | 627-90-7(CAS DataBase Reference) |
| EPA Substance Registry System | Undecanoic acid, ethyl ester (627-90-7) |
Safety information for ETHYL UNDECANOATE
Computed Descriptors for ETHYL UNDECANOATE
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