3-Hydroxy-4-methyl-5-ethyl-2(5H)furanone Chemical Properties

Melting point:

31-35 °C(lit.)

Boiling point:

83-86 °C0.5 mm Hg(lit.)

Density 

1.1643 (rough estimate)

FEMA 

3153 | 5-ETHYL-3-HYDROXY-4-METHYL-2(5H)-FURANONE

refractive index 

n20/D 1.49(lit.)

Flash point:

>230 °F

storage temp. 

2-8°C

solubility 

Chloroform (Slightly), Methanol (Slightly)

pka

9.28±0.40(Predicted)

form 

powder to lump to clear liquid

color 

White or Colorless to Yellow

Odor

at 0.01 % in dipropylene glycol. sweet fruity caramellic maple fenugreek brown sugar nutty chicory praline butterscotch

Odor Type

caramellic

FreezingPoint 

25.0 to 29.0 ℃

JECFA Number

222

Stability:

Hygroscopic

InChIKey

IUFQZPBIRYFPFD-UHFFFAOYSA-N

LogP

0.09

CAS DataBase Reference

698-10-2(CAS DataBase Reference)

NIST Chemistry Reference

2(5H)-furanone, 5-ethyl-3-hydroxy-4-methyl-(698-10-2)

EPA Substance Registry System

2(5H)-Furanone, 5-ethyl-3-hydroxy-4-methyl- (698-10-2)

Safety Information

Safety Statements 

24/25

RIDADR 

UN 3335

WGK Germany 

3

HS Code 

29322090

MSDS

• Language:English Provider:3-Hydroxy-4-methyl-5-ethyl-2(5H)furanone
• Language:English Provider:ACROS
• Language:English Provider:SigmaAldrich

3-Hydroxy-4-methyl-5-ethyl-2(5H)furanone Usage And Synthesis

Chemical Properties

light yellow liqui

Chemical Properties

Abhexone has been found in, for example, lovage and roasted coffee. It has a bouillon-like, coffee and lovage aroma, depending on its concentration. It can be prepared starting from alkyl 2-oxobutanoate either by self-condensation followed subsequently by decarbomethoxylation or by condensation with propionaldehyde and subsequent cyclization . Alkyl 2-oxobutanoate is available from acrylaldehyde and sodium cyanide via alkyl 2-hydroxy-3-butenoate or by reaction of dialkyloxalate with ethyl magnesium bromide . It is used for aromatization of food.

Chemical Properties

5-Ethyl-3-hydroxy-4-methyl-2(5H)-furanone has a sweet, maple, caramel odor.

Occurrence

Reported found in coffee.

Uses

5-Ethyl-3-hydroxy-4-methyl-2(5H)-furanone is an odorant found in grape stems, Jura Flor-Sherry wines and roasted arabica coffee.

Definition

ChEBI: 5-ethyl-3-hydroxy-4-methyl-2(5H)-furanone is a butenolide. It has a role as a metabolite.

Taste threshold values

Taste characteristics at 50 ppm: sweet, fruity with brown maple note.

3-Hydroxy-4-methyl-5-ethyl-2(5H)furanone(698-10-2)Related Product Information

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