3,5-Dimethyl-1,2-cyclopentanedione

3,5-Dimethyl-1,2-cyclopentanedione Basic information
Product Name:3,5-Dimethyl-1,2-cyclopentanedione
Synonyms:2-Cyclopentanedione,3,5-dimethyl-1;3,5-dimethyl-2-cyclopentanedione;CORONOL;FEMA 3269;3,5-DIMETHYL-2-HYDROXY-2-CYCLOPENTENYL-1-ONE;3,5-DIMETHYL-1,2-CYCLOPENTADIONE;3,5-DIMETHYL-1,2-CYCLOPENTANEDIONE;3,5-dimethylcyclopentane-1,2-dione
CAS:13494-07-0
MF:C7H10O2
MW:126.15
EINECS:236-811-3
Product Categories:Alphabetical Listings;C-D;Flavors and Fragrances
Mol File:13494-07-0.mol
3,5-Dimethyl-1,2-cyclopentanedione Structure
3,5-Dimethyl-1,2-cyclopentanedione Chemical Properties
Melting point 87-95 °C(lit.)
Boiling point 187.4±9.0 °C(Predicted)
density 1.036±0.06 g/cm3(Predicted)
FEMA 3269 | 3,5-DIMETHYL-1,2-CYCLOPENTADIONE
Odorat 1.00 % in propylene glycol. caramellic burnt sugar brown maple toffee molasses whiskey nutty coffee
Odor Typecaramellic
JECFA Number421
LogP0.53
NIST Chemistry Reference1,2-Cyclopentanedione, 3,5-dimethyl-(13494-07-0)
EPA Substance Registry System1,2-Cyclopentanedione, 3,5-dimethyl- (13494-07-0)
Safety Information
WGK Germany 3
MSDS Information
ProviderLanguage
SigmaAldrich English
ACROS English
3,5-Dimethyl-1,2-cyclopentanedione Usage And Synthesis
Chemical Propertieswhite to pale yellow crystalline powder
OccurrenceReported found as a volatile constituent in coffee aroma and cooked pork.
PreparationBy direct alkylation of the methyl ester of the commercially available 3-methylcyclo-pent-2-en-2-ol-1-one, followed by the cleavage of the ether function.
Aroma threshold valuesDetection: 1 ppm
Taste threshold valuesTaste characteristics at 10 ppm: brown, sweet, sugary, maple, caramellic
3,5-Dimethyl-1,2-cyclopentanedione Preparation Products And Raw materials
Dacthal Methyl cyclopentenolone Acetylacetone Ketorolac tromethamine Poly(dimethylsiloxane) ETHANE 3-Ethyl-2-hydroxy-2-cyclopenten-1-one Dimethyl fumarate Acetone oxime 1-Methylcyclopentene 2,5-Dimethylpyridine 3,5-Dimethylbenzoic acid Dimethyl disulfide Dimethyl ether N,N-Dimethylacetamide Dimethyl carbonate 1,3-Cyclopentanedione Dimethyl sulfate

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