2-Ethyl-4-hydroxy-5-methylfuran-3(2H)-on

Bezeichnung:2-Ethyl-4-hydroxy-5-methylfuran-3(2H)-on

CAS-Nr27538-10-9

Englisch Name:Ethyl furaneol

CBNumberCB8332662

SummenformelC7H10O3

Molgewicht142.15

MOL-Datei27538-10-9.mol

Synonyma

2-Ethyl-4-hydroxy-5-methylfuran-3(2H)-on

2-Ethyl-4-hydroxy-5-methylfuran-3(2H)-on physikalisch-chemischer Eigenschaften

Siedepunkt	248-249 °C(lit.)
Dichte	1.137 g/mL at 25 °C(lit.)
Dampfdruck	78-89hPa at 20-40℃
FEMA	3623 \| 2-ETHYL-4-HYDROXY-5-METHYL-3(2H)-FURANONE
Brechungsindex	n20/D 1.512(lit.)
Flammpunkt	184 °F
storage temp.	under inert gas (nitrogen or Argon) at 2-8°C
pka	9.62±0.40(Predicted)
Aggregatzustand	Liquid
Farbe	Light orange to Yellow to Green
Geruch (Odor)	at 1.00 % in dipropylene glycol. sweet caramel candy butterscotch
Geruchsart	caramellic
JECFA Number	1449
LogP	0.9 at 25℃ and pH7
CAS Datenbank	27538-10-9(CAS DataBase Reference)
NIST chemische Informationen	2-ethyl-4-hydroxy-5-methyl-3(2H)-furanone(27538-10-9)
EPA chemische Informationen	3(2H)-Furanone, 2-ethyl-4-hydroxy-5-methyl- (27538-10-9)

Sicherheit

R-Sätze:	22
S-Sätze:	23-36
WGK Germany	3
RTECS-Nr.	LU4250000
HS Code	2932190090

Gefahreninformationscode (GHS)

Ethyl furaneol Chemische Eigenschaften,Einsatz,Produktion Methoden

R-Sätze Betriebsanweisung:
R22:Gesundheitsschädlich beim Verschlucken.
S-Sätze Betriebsanweisung:
S23:Gas/Rauch/Dampf/Aerosol nicht einatmen(geeignete Bezeichnung(en) vom Hersteller anzugeben).
S36:DE: Bei der Arbeit geeignete Schutzkleidung tragen.
Chemische Eigenschaften
2-Ethyl-4-hydroxy-5-methyl-3(2H)-furanone has a sweet, fruity, caramel, butterscotch odor.
Chemische Eigenschaften
Colorless to light yellow liqui
Chemische Eigenschaften
2-Ethyl-4-hydroxy-5-methyl-3(2H)-furanone has been identified in, for example, coffee and melon. The tautomer mixture is a clear slightly yellowish liquid, bp0.02 kPa 82–83°C, d²⁰₄ 1.137, n²⁰_D 1.511 with sweet, caramel, fruity, bread-like odor.
Occurrence
Reported found in soy sauce, Swiss cheese and melon, coffee, shoyu, strawberry and pineapple.
synthetische
One commercially applied synthesis is the condensation of 2-pentene nitrile with ethyl lactate followed by oxidation of the intermediate 4-cyano-5-ethyl-2-methyldihydro-3(2H)-furanone with monoperoxysulfate.
Definition
ChEBI: 2-ethyl-4-hydroxy-5-methyl-3(2H)-furanone is a member of the class of furans that is furan-3(2H)-one carrying additional ethyl, hydroxy and methyl substituents at positions 2, 4 and 5 respectively. A key aroma compound in soy sauce and fish sauce. It has a role as a Saccharomyces cerevisiae metabolite. It is a cyclic ketone, an enol and a member of furans.
Aroma threshold values
Detection: 20 ppb
Taste threshold values
Taste characteristics at 20 ppm: burnt, caramellic, sweet and fruity

2-Ethyl-4-hydroxy-5-methylfuran-3(2H)-on Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

27538-10-9, Ethyl furaneol Verwandte Suche:

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