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Trans-2-cis-6-Nonadiénol (N°Cas : 28069-72-9)

Crédits photo: ScenTree SAS

CAS number :

28069-72-9

EINECS number :

248-816-8

FEMA number :

2780

JECFA number :

Data not available.

FLAVIS number :

02.231

Volatility :

Head

Appearance :

Colorless liquid

Price Range :

€€€€€

Stability :

Very unstable in acid cleaners and very alkaline products. Exclusively stable in shampoo, soap and fabric care bases.

Density :

0.87

Molecular formula :

C₉H₁₆O

Molecular Weight :

140.23 g/mol

Flash Point :

203°F (95°C)

Log P :

2.87

Fusion Point :

Data not available.

Boiling Point :

450°F (232°C)

Detection Threshold :

Data not available.

Crédits photo: ScenTree SAS

Year of discovery :

Data not available.

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.

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.

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.

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.

Allergens :

This ingredient does not contain any allergen.

For more information on allergens used in perfumery, please consult our article about allergens

IFRA :

This ingredient is not restricted

Maximum usage according to the product category :
Ingredients containing
Ingredient Name	CAS N°	Estimated Concentration

Cat.1	Cat.2	Cat.3	Cat.4	Cat.5	Cat.6	Cat.7	Cat.8	Cat.9	Cat.10	Cat.11
0,003 %	0,004 %	0,02 %	0,02 %	0,02 %	0,07 %	0,008 %	0,02 %	0,02 %	0,02 %	Not restricted

Skin contact products	Non skin contact products
Leave on products	Rinse off products

List of natural ingredients containing the material presented here
Ingredient Name	Botanical Name	CAS N°	Estimated Concentration
Angelica root oil	Angelica archangelica L.	8015-64-3	1,6
Angelica seed oil	Angelica archangelica L.	8015-64-3	0,29
Galbanum gum	Ferula spp.	8023-91-4	0,01
Galbanum oil	Ferula spp.	8023-91-4	0,1
Galbanum resin	Ferula spp.	8023-91-4	0,1

Maximum usage according to the product category :
Ingredients containing
Ingredient Name	CAS N°	Estimated Concentration

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 %	Not restricted

List of natural ingredients containing the material presented here
Ingredient Name	Botanical Name	CAS N°	Estimated Concentration
Angelica root oil	Angelica archangelica L.	8015-64-3	1,6
Angelica seed oil	Angelica archangelica L.	8015-64-3	0,29
Galbanum gum	Ferula spp.	8023-91-4	0,01
Galbanum oil	Ferula spp.	8023-91-4	0,1
Galbanum resin	Ferula spp.	8023-91-4	0,1

To learn more about IFRA's standards : https://ifrafragrance.org/safe-use/library
To find out the specificities of each category and the ingredients prohibited by IFRA, click article about l'IFRA
ScenTree is solely responsible for the information provided here.

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.

Other names :

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

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.

Exploring the branches of scent

Year of discovery :

Data not available.

Synthesis route :

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.

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.

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.

Allergens :

This ingredient does not contain any allergen.

Annexe I :

Restriction type :

RESTRICTION QRA

Cause of restriction :

SENSITIZATION

Amendment :

44

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.

Quantitative usage limits :

Annexe I :

Annexe I :

Restriction type :

Cause of restriction :

DERMAL SENSITIZATION

Amendment :

49

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.

Quantitative limit on the use :

Annexe I :