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General Presentation
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CAS N° : : 23696-85-7
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EINECS number : 245-833-2
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FEMA number : 3420
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Density : 0,946 - 0,952 @20°C
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Optical rotation : Lorem Ipsum
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Allergens : This ingredient does not contain any allergen.
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Refractive Index @20°C : Lorem Ipsum
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Volatility : Heart/Base
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Price Range : €€€€
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Appearance : Colorless to pale yellow liquid
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FLAVIS number : 07.108
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JECFA number : 387
Information on synthetic ingredients
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Acid Value : Lorem Ipsum
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Boiling Point :
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Detection Threshold : Donnée indisponible.
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Molecular formula : C13H18O
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Log P : 3,33
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Molecular Weight : 190,29 g/mol
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Fusion Point : Donnée indisponible.
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Flash Point : >100°C (>212°F)
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Vapor pressure : Lorem Ipsum
Uses
Other comments :
Damascenone is part of one of the most important chemical family used in fragrance industry, the ''rose ketones ''. This family is filled by many famous compounds : Damascenone-Beta® ; Damascenone-Alpha® ; (E/Z)-Beta-damascone® ; Damascone-Alpha® ; (E/Z)-Gamma-damascone®.
Stability :
Stable in perfumes and diverse functional bases
Uses in perfumery :
Damascenone is used, like most rose ketones, to bring a delicate rose undertone. In a floral composition, this ingredient will bring naturality and volume. It also allows to work on the maturity grade of the fruit by bringing a candied and cooked apple facet. Finally, it is very important to highlight that IFRA guidelines strongly regulate the use of rose ketones. Therefore, their use is very limited and will probably reach zero in the coming years.
Year of discovery :
First rose ketones were discovered in 1965, by chemists P. Ruzicka and Dr. Demole, by analyzing Damask Rose Absolute. This opened the way to synthesize a major molecule category of the perfume industry.
Isomerism :
Damascenone is a mixture of two enantiomers. There is Damascenone-Beta® and Damascenone-Alpha®. Their smell are similar but the location of the double bonds in the ring is not the same (1,3 positions for Damascenone-Beta® and 2,4 positions for Damascenone-Alpha®).
Synthesis precursor :
Damascenone-Beta® is not a precursor to the synthesis of another compound of olfactory interest.
Natural availability :
Data not available.
Synthesis route :
Damascenone is part of the ''rose ketones '' family, present in a small amount in Damask Rose Absolute, while playing an important role in their smell. Rose ketones are synthesized from the appropriate derivative of cyclogeranic acid (ester, halide, ...). A reaction of this derivative with an allyl magnesium halide followed by a pyrolysis, allows to obtain the desired compound by rearranging the double bond of the branched chain.
Regulations & IFRA
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IFRA 51th : This ingredient is restricted by IFRA
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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 Cat.5B Cat.5C Cat.5D Cat.6 0,0077 % 0,0023 % 0,046 % 0,043 % 0,011 % 0,011 % 0,011 % 0,011 % 0,025 % Cat.7A Cat.7B Cat.8 Cat.9 Cat.10A Cat.10B Cat.11A Cat.11B Cat.12 0,088 % 0,088 % 0,0045 % 0,084 % 0,3 % 0,3 % 0,17 % 0,17 % No Restriction
Comments :
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.
