3,4-dimethyl 2-hydroxy-2-cyclopenten-1-one Chemical Properties

Melting point:

68-72 °C(lit.)

Boiling point:

194.28°C (rough estimate)

Density 

1.0579 (rough estimate)

refractive index 

1.4690 (estimate)

FEMA 

3268 | 3,4-DIMETHYL-1,2-CYCLOPENTADIONE

storage temp. 

Inert atmosphere,2-8°C

solubility 

Chloroform (Soluble), Methanol (Slightly)

form 

Crystalline Powder

color 

Slightly yellow to light beige

Odor

at 1.00 % in dipropylene glycol. sweet maple caramel sugar fenugreek licorice

Odor Type

caramellic

Water Solubility 

slightly soluble

JECFA Number

420

LogP

0.53

CAS DataBase Reference

13494-06-9(CAS DataBase Reference)

NIST Chemistry Reference

1,2-Cyclopentanedione, 3,4-dimethyl-(13494-06-9)

EPA Substance Registry System

1,2-Cyclopentanedione, 3,4-dimethyl- (13494-06-9)

Safety Information

Safety Statements 

24/25

WGK Germany 

3

HS Code 

29142990

MSDS

• Language:English Provider:3,4-Dimethyl-1,2-cyclopentanedione
• Language:English Provider:SigmaAldrich
• Language:English Provider:ACROS

3,4-dimethyl 2-hydroxy-2-cyclopenten-1-one Usage And Synthesis

Chemical Properties

slightly yellow to light beige crystalline powder

Occurrence

Reported found as a constituent in coffee.

Uses

3,4-Dimethyl-1,2-cyclopentanedione is a useful protective agent for food products.

Preparation

By alkylation of 3,5-dicarbetoxy-4-methyl-cyclopentane-1,2-dione followed by hydrolysis and decarboxylation of the resulting 3,5-dicarbetoxy-3,4-dimethyl-cyclopentane-1,2-di-one

Aroma threshold values

Detection: 17 to 20 ppb

Taste threshold values

Taste characteristics at 10 ppm: brown, sweet, sugary, maple and caramellic.

3,4-dimethyl 2-hydroxy-2-cyclopenten-1-one(13494-06-9)Related Product Information

• Poly(dimethylsiloxane)
• N,N-Dimethylformamide
• Dacthal
• Cyclicdimethylpolysiloxane
• N,N-Dimethylaniline
• Dimethyl sulfate
• Dimethyl carbonate
• Dimethyl disulfide
• Dimethyl ether
• N,N-Dimethylacetamide
• Acetylacetone
• ETHANE
• 1,3-Cyclopentanedione
• Dimethyl sulfoxide
• Dimethyl fumarate
• Dimethyl phthalate
• DL-CAMPHORQUINONE
• (1R)-(-)-CAMPHORQUINONE