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General Presentation
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CAS N° :
124-19-6 -
EINECS number :
204-688-5 -
FEMA number :
2782 -
FLAVIS number :
05.025
-
JECFA number :
101 -
Volatility :
Head -
Price Range :
€€€
Physico chemical properties
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Appearance :
Colorless liquid -
Density :
0,827 -
Refractive Index @20°C :
1,422 – 1,429 -
Optical rotation :
Data not available. -
Vapor pressure :
0,533 hPa @20°C -
Flash Point :
76°C
-
Molecular formula :
C9H18O -
Molecular Weight :
142,24 g/mol -
Log P :
3,4 -
Fusion Point :
-19°C -
Boiling Point :
194°C -
Detection Threshold :
1,188 ng/l air
Chemistry & Uses
Year of discovery :
Data not available.
Natural availability :
Aldehyde C-9 is present in the essential oil of certain citrus fruits such as Bergamot EO or Sweet Orange EO, but also in trace amounts in Damask Rose EO. It can be extracted from these oils in its natural state.
Isomerism :
Aldehyde C-9 has no known isomer in perfumery.
Synthesis precursor :
Aldehyde C-9 can be converted to a Schiff base in the presence of Methyl Anthranilate or Indole. It can also be used for condensation with another aldehyde or ketone to form the desired alcene.
Synthesis route :
Aldehyde C-9 is an aliphatic aldehyde. Like the other aldehydes, it can be synthesized by reaction of nonyl halides (chloride, for example) and dimethyl sulfoxide (DMSO), followed by an alkaline treatment with sodium bicarbonate. Other synthetic routes exist such as a reduction of Rosenmund from nonylic acid, using an acid chloride.
Stability :
Aldehydes may form diethylacetals in alcoholic perfumes, with no real impact on their smell
Other comments :
In comparision to Aldehyde C-8, Aldehyde C-9 has a much more zesty and fresh facet.
Regulations & IFRA
Allergens :
This ingredient does not contain any allergen.
IFRA 51th :
This ingredient is not restricted for the 51th amendment
