Photo credits: ScenTree SAS
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General Presentation
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CAS N° : 35087-49-1
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EINECS number : 481-910-9
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FEMA number : Donnée indisponible.
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FLAVIS number : Donnée indisponible.
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JECFA number : Donnée indisponible.
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Appearance : Colorless to pale yellow liquid
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Density : 0,93
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Volatility : Heart/Base
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Price Range : €€€
Physico-chemical properties
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Molecular formula : C13H20O
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Molecular Weight : 192,3 g/mol
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Log P : 4,11
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Fusion Point : Donnée indisponible.
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Boiling Point : 267°C
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Detection Threshold : Donnée indisponible.
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Optical rotation : Donnée indisponible
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Vapor pressure : Donnée indisponible
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Refractive Index @20°C : Donnée indisponible
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Acid Value : Donnée indisponible.
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Flash Point : 98°C
Uses
Uses in perfumery :
Gamma-Damascone® can be used to make the link between a fruity and a coniferous note, to bring a cooked fruit effect. It also brings a dirty aspect to a composition, in association with aromatic notes.
Year of discovery :
First damascones were discovered in 1965 by chemists P. Ruzicka and Dr. Demole, by anayzing an extract as Damask Rose Absolute. This discovery showed the way to a new rosy and fruity molecule family.
Natural availability :
Gamma-Damascone® is not found on a natural state. Thus, it is impossible to extract it in any way.
Isomerism :
''Rose ketone '' family contains a few different molecules, almost all evoking cooked apple, blackcurrant and Damask Rose Absolute. Gamma-Damascone® has the most particular smell, with a coniferous facet, close to Thuyone, that makes its distinction. Beta-Damascone® and Alpha-Damascone® are both more rosy and minty. Alpha-Ionone and Beta-Ionone are both positional isomers of Damascone® molecules, because their ketone function is located on another carbon, and as they have a relocated methyl function. Nevertheless, their smell is very different, as Ionones are reminiscent of violet flower.
Synthesis precursor :
Gamma-Damascone® is not a precursor for the synthesis of another olfactive compound.
Synthesis route :
Gamma-Damascone® belongs to the ''rose-ketones '' family. Rose ketones are synthesized thanks to the appropriate cyclogeranic acid derivative (ester, halide…). Reacting this derivative with an allyl magnesium halide, followed by subsequent pyrolysis, leads to the desired compound, by rearranging the double bond of the branched chain.
Regulations & IFRA
Allergens :
This ingredient does not contain any allergen.
IFRA 51th :
This ingredient is restricted by the 51th amendment
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Restriction type : RESTRICTION
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Cause of restriction : DERMAL SENSITIZATION
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Amendment : 49
- Quantitative limit on the use :
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Cat.1 Cat.2 Cat.3 Cat.4 Cat.5A B C DCat.6 0,0077 % 0,0023 % 0,046 % 0,043 % 0,011 % 0,011 % 0,011 % 0,011 %0,025 % Cat.5A B C DCat.6 0,011 % 0,011 % 0,011 % 0,011 %0,025 % Cat.7A BCat.8 Cat.9 Cat.10A BCat.11A BCat.12 0,088 % 0,088 %0,0045 % 0,084 % 0,3 % 0,3 %0,17 % 0,17 %No Restriction Cat.10A BCat.11A BCat.12 0,3 % 0,3 %0,17 % 0,17 %No Restriction
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Restricted ingredients: notes
The above limits apply to Rose Ketones used individually or in combination. The sum of concentrations of Rose ketones isomers should not exceed the maximum concentration levels established by this Standard.
