Ethylundecanoat

Bezeichnung:Ethylundecanoat

Englisch Name:ETHYL UNDECANOATE

CBNumberCB6147507

SummenformelC13H26O2

Molgewicht214.34

Synonyma

Ethylundecanoat

Ethylundecanoat physikalisch-chemischer Eigenschaften

Schmelzpunkt	-15 °C
Siedepunkt	105 °C/4 mmHg (lit.)
Dichte	0.859 g/mL at 25 °C (lit.)
Brechungsindex	n20/D 1.428(lit.)
FEMA	3492 \| ETHYL UNDECANOATE
Flammpunkt	>230 °F
storage temp.	Sealed in dry,Room Temperature
Aggregatzustand	clear liquid
Farbe	Colorless to Almost colorless
Geruch (Odor)	at 100.00 %. soapy waxy fatty cognac coconut
Geruchsart	soapy
JECFA Number	36
BRN	1767805
Dielectric constant	3.5499999999999998
LogP	5.49
CAS Datenbank	627-90-7(CAS DataBase Reference)
EPA chemische Informationen	Undecanoic acid, ethyl ester (627-90-7)

Sicherheit

ETHYL UNDECANOATE Chemische Eigenschaften,Einsatz,Produktion Methoden

S-Sätze Betriebsanweisung:
S24/25:Berührung mit den Augen und der Haut vermeiden.
Chemische Eigenschaften
CLEAR COLOURLESS LIQUID
Chemische Eigenschaften
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.
Verwenden
Ethyl undecanoate was used to prepare the corresponding aldehyde in the presence of Lithium diisobutyl-t-butoxyaluminum hydride (LDBBA).
Definition
ChEBI: Ethyl undecanoate is a fatty acid ester.
synthetische
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.
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
Allgemeine Beschreibung
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.