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

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3,4-dimethyl 2-hydroxy-2-cyclopenten-1-one Basic information

Product Name:
3,4-dimethyl 2-hydroxy-2-cyclopenten-1-one
Synonyms:
  • 2-Cyclopentanedione,3,4-dimethyl-1
  • 3,4-dimethyl-2-cyclopentanedione
  • FEMA 3268
  • METHYL CORYLONE
  • 3,4-DIMETHYL-1,2-CYCLOPENTANEDIONE 97%
  • 3,4-dimethylcyclopentane-1,2-dione
  • 2-hydroxy-3,4-dimethylcyclopent-2-en-1-one
  • 3 4-DIMETHYL-1 2-CYCLOPENTADIONE 97+%
CAS:
13494-06-9
MF:
C7H10O2
MW:
126.15
EINECS:
236-810-8
Product Categories:
  • Alphabetical Listings
  • C-D
  • API intermediates
  • Flavors and Fragrances
Mol File:
13494-06-9.mol
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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)
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Safety Information

Safety Statements 
24/25
WGK Germany 
3
HS Code 
29142990

MSDS

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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-oneSupplier

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