Ethyl-2-methylcrotonat

Bezeichnung:Ethyl-2-methylcrotonat

Englisch Name:Ethyl tiglate

CBNumberCB2126324

SummenformelC7H12O2

Molgewicht128.17

Synonyma

Ethyl-2-methylcrotonat

Ethyl-2-methylcrotonat physikalisch-chemischer Eigenschaften

Schmelzpunkt	-62.68°C (estimate)
Siedepunkt	154-156 °C (lit.)
Dichte	0.923 g/mL at 25 °C (lit.)
FEMA	2460 \| ETHYL TIGLATE
Brechungsindex	n20/D 1.435(lit.)
Flammpunkt	112 °F
storage temp.	Flammables area
Aggregatzustand	clear liquid
Farbe	Colorless to Almost colorless
Geruch (Odor)	at 10.00 % in dipropylene glycol. sweet fruity tutti frutti tropical berry floral caramel
Geruchsart	fruity
Merck	14,9433
JECFA Number	1824
BRN	1720895
Stabilität	Stable. Flammable. Incompatible with strong oxidizing agents, strong bases.
LogP	2.40
CAS Datenbank	5837-78-5(CAS DataBase Reference)
NIST chemische Informationen	Ethyl tiglate(5837-78-5)
EPA chemische Informationen	2-Butenoic acid, 2-methyl-, ethyl ester, (2E)- (5837-78-5)

Sicherheit

Gefahreninformationscode (GHS)

R-Sätze Betriebsanweisung:
R10:Entzündlich.
S-Sätze Betriebsanweisung:
S16:Von Zündquellen fernhalten - Nicht rauchen.
S27:Beschmutzte, getränkte Kleidung sofort ausziehen.
S36/37/39:Bei der Arbeit geeignete Schutzkleidung,Schutzhandschuhe und Schutzbrille/Gesichtsschutz tragen.
Chemische Eigenschaften
liquid
Chemische Eigenschaften
Ethyl tiglate has a fruity, caramel odor
Occurrence
Reported found in strawberry, Vitis species, durian (Durio zibethinus), starfruit and naranjilla fruit.
Verwenden
Ethyl Tiglate is an aroma compound present in fruits. Also used in the synthesis of grandisol and fraganol.
synthetische
By direct esterification of tiglic acid with ethyl alcohol in the presence of concentrated H2SO4 or by reaction of bromomethylethyl acetic acid ethyl ester with dimethylaniline.
Definition
ChEBI: Ethyl 2-methylbut-2-enoate is a fatty acid ester.
Aroma threshold values
Detection: 65 ppb
Allgemeine Beschreibung
Ethyl tiglate, an α,β-unsaturated ester, is naturally found in apples. It can be prepared by the esterification of tiglic acid. Ethyl tiglate is a male-specific pheromone found in some Drosophila species that can attract both male and females. Saprochaete suaveolens grown in a culture medium has been reported to produce ethyl tiglate by metabolizing isoleucine.