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

biological source

synthetic

Water Solubility 

slightly soluble

JECFA Number

420

Major Application

flavors and fragrances

Cosmetics Ingredients Functions

PERFUMING

InChI

1S/C7H10O2/c1-4-3-6(8)7(9)5(4)2/h4-5H,3H2,1-2H3

InChIKey

WGAVDEVFJDQIMZ-UHFFFAOYSA-N

SMILES

CC1CC(=O)C(=O)C1C

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

TSCA 

TSCA listed

HS Code 

29142990

Storage Class

11 - Combustible Solids

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
• Acetylacetone
• ETHANE
• 1,3-Cyclopentanedione
• Dimethyl sulfoxide
• Dimethyl fumarate
• Dimethyl phthalate
• N,N-Dimethylacetamide
• DL-CAMPHORQUINONE
• (1R)-(-)-CAMPHORQUINONE