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HomeProduct name list3,4-dimethyl 2-hydroxy-2-cyclopenten-1-one

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

Synonym(s):Caramel pentadione

  • CAS NO.:13494-06-9
  • Empirical Formula: C7H10O2
  • Molecular Weight: 126.15
  • MDL number: MFCD00143063
  • EINECS: 236-810-8
  • SAFETY DATA SHEET (SDS)
  • Update Date: 2024-11-15 19:19:13
3,4-dimethyl 2-hydroxy-2-cyclopenten-1-one Structural

What is 3,4-dimethyl 2-hydroxy-2-cyclopenten-1-one?

Chemical properties

slightly yellow to light beige crystalline powder

Occurrence

Reported found as a constituent in coffee.

The Uses of 3,4-dimethyl 2-hydroxy-2-cyclopenten-1-one

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.

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

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
Water Solubility  slightly soluble
JECFA Number 420
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 for 3,4-dimethyl 2-hydroxy-2-cyclopenten-1-one

Signal word Warning
Pictogram(s)
ghs
Exclamation Mark
Irritant
GHS07
GHS Hazard Statements H302:Acute toxicity,oral
H315:Skin corrosion/irritation
H319:Serious eye damage/eye irritation
H335:Specific target organ toxicity, single exposure;Respiratory tract irritation
Precautionary Statement Codes P261:Avoid breathing dust/fume/gas/mist/vapours/spray.
P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

Computed Descriptors for 3,4-dimethyl 2-hydroxy-2-cyclopenten-1-one

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