(2E,6Z)-Nonadienol
Cucumber alcohol ; Violet leaf alcohol ; Alcool concombre ; Alcool feuille de violette ; (E)-2-(Z)-6-nonadienol ; (E,Z)-2,6-nonadienol ; Trans-2-cis-6-nonadien-1-ol ; E)-2-(Z)-6-nonadien-1-ol ; (E,Z)-2,6-nonadien-1-ol ; Nona-2,6-dienol ; Nona-2,6-dien-1-ol ; (Z,E)-nona-2,6-dienol ; (Z,E)-nona-2,6-dien-1-ol
Photo credits: ScenTree SAS
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General Presentation
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CAS N° : : 28069-72-9
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EINECS number : 248-816-8
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FEMA number : 2780
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Density : 0,87
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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 : Head
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Price Range : €€€€€
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Appearance : Colorless liquid
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FLAVIS number : 02.231
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JECFA number : Donnée indisponible.
Information on synthetic ingredients
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Acid Value : Lorem Ipsum
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Boiling Point : 232°C
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Detection Threshold : Donnée indisponible.
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Molecular formula : C9H16O
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Log P : 2,87
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Molecular Weight : 140,23 g/mol
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Fusion Point : Donnée indisponible.
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Flash Point : 95°C
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Vapor pressure : Lorem Ipsum
Uses
Other comments :
In comparision to Trans-2-cis-6-Nonadienal, both molecules have a common violet leaf usage, but Trans-2-cis-6-Nonadienol still has a more floral and soft touch.
Both raw materials are also very costly.
Stability :
Very unstable in acid cleaners and very alkaline products. Exclusively stable in shampoo, soap and fabric care bases.
Uses in perfumery :
Trans-2-cis-6-Nonadienol is used to make artificial violet leaf notes and in woody perfumes. It can also be useful to bring a strong mimosa top note. This molecule is used in very low quantity as it is very powerful, and it is diluted before usage.
Year of discovery :
Data not available.
Isomerism :
The different diastereoisomers of Trans-2-cis-6-Nonadienol can be used in perfumery as they also have a green smell reminiscent of violet leaf and cucumber. They remain much less used than the first compound.
Synthesis precursor :
Trans-2-cis-6-Nonadienol can be used to synthesize its corresponding esters. For example, Trans-2-cis-6-Nonadienyl acetate has a green, fatty and nutty smell.
Natural availability :
Trans-2-cis-6-Nonadienol is found on a natural state in Violet Leaf Absolute, and is partly responsible for its green and fatty smell. It can thus be extracted from it.
Synthesis route :
Trans-2-cis-6-Nonadienol is synthesized starting from cis-3-Hexenol, converted into cis-3-hexenyl chloride first, and then blending this product with pure magnesium to form a Grignard reagent. This reagent will undergo a reaction with acrolein, to form nonadien-3-ol, then converted into trans-2-cis-6-nonadienol thanks to an allylic rearrangement.
Regulations & IFRA
This ingredient is not restricted
