Photo credits: ScenTree SAS
Cyclotene
Methylcyclopentenolone ; Maple Lactone ; Corylone® ; 3-methylcyclopentane-1,2-dione ; 3-methyl-cyclopantane-1,2-dione ; 3-methyl-1,2-cyclopentanedione ; Kentonarome ; 2-hydroxy-3-methyl-2-cyclopenten-1-one ; Mcp ; Methyl cyclo pentenolone ; Methyl cyclopentenelone ; 3-methyl-1,2-cyclopentanedione
Photo credits: ScenTree SAS
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General Presentation
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CAS N° :
765-70-8 -
EINECS number :
212-154-8 -
FEMA number :
2700 -
FLAVIS number :
07.056
-
JECFA number :
418 -
Volatility :
Base -
Price Range :
€€€
Physico chemical properties
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Appearance :
Colorless liquid -
Density :
Volumetric mass density : 1,31 g/cm³ -
Refractive Index @20°C :
Data not available. -
Optical rotation :
Data not available. -
Vapor pressure :
0,91 hPa @20°C (68°F) -
Flash Point :
Donnée indisponible.
-
Molecular formula :
C6H8O2 -
Molecular Weight :
112,13 g/mol -
Log P :
0,47 -
Fusion Point :
106°C -
Boiling Point :
179°C -
Detection Threshold :
300 ppb (0,00003%)
Chemistry & Uses
Year of discovery :
1926
Natural availability :
Cyclotene is present in peanuts and roasted products like almond and coffee, but does not exist in natural extracts. It also gives maple syrup its characteristic smell.
Isomerism :
Cyclotene has no isomer of olfactory interest.
Synthesis precursor :
Cyclotene is not a precursor to the synthesis of another compound of olfactory interest.
Synthesis route :
Cyclotene is part of the cyclopentenone family, associated with pyranes and furans, both their structure and their greedy smell are close. Cyclotene can be synthesized by an acyloin condensation reaction by reacting esters of alkyl glutaric acid on themselves. Therefore, the acyloin cyclization of ethyl 2-methylglutarate followed by a treatment with cupric acid in methanol allows to obtain Cyclotene with a yield of 40%. Nowadays, other synthetic routes exist and have greater efficiency.
Stability :
Stable in perfumes and diverse functional bases
Other comments :
Data not available.
Regulations & IFRA
Allergens :
This ingredient does not contain any allergen.
IFRA 51th :
This ingredient is not restricted for the 51th amendment
