ScenTree, la nouvelle encyclopédie des ingrédients de parfum.

Exploring the branches of scent

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Crédits photo: ScenTree SAS

CAS number :

111-71-7

EINECS number :

203-898-4

FEMA number :

2540

JECFA number :

95

FLAVIS number :

05.031

Volatility :

Head

Appearance :

Colorless liquid

Price Range :

€€€

Stability :

Aldehydes may form diethylacetals in alcoholic perfumes, with no real impact on their smell

Density :

0.817

Molecular formula :

C₇H₁₄O

Molecular Weight :

114.18 g/mol

Flash Point :

95°F (35°C)

Log P :

2.8

Fusion Point :

-45.4°F (-43°C)

Boiling Point :

307.4°F (153°C)

Detection Threshold :

3 and 60 ppb (0.000006%) depending on people.

Crédits photo: ScenTree SAS

Year of discovery :

Data not available.

Synthesis route :

Aldehyde C-7 is an aliphatic aldehyde. Like the other aldehydes, it can be synthesized by reaction of heptyl halides (chloride, for example) and dimethyl sulfoxide (DMSO), followed by an alklaine treatment with sodium bicarbonate. Other synthetic routes exist such as a reduction of Rosenmund from heptylic acid, using an acid chloride.

Synthesis precursor :

Aldehyde C-7 enters the first stage of synthesis of Neofolione®, in combination with malonic acid. It forms a Schiff base by reaction with Methyl Anthranilate or Indole for example. It can also be used for condensation with another aldehyde or ketone to form the desired alcene.

Isomerism :

Isoamyl Acetate and Methyl Amyl Ketone are constitutional isomers of Aldehyde C-7, but have a very different smell: more fruity for Isoamyl Acetate and more mushroom for Methyl Amyl Ketone.

Natural availability :

Aldehyde C-7 can be found in its natural state, especially in Champaca Absolute, Narcissus Absolute or Damask Rose Absolute (and other roses), from which it can be extracted by fractional distillation.

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
Benzyl alcohol	100-51-6	0,05
p-Methoxybenzaldehyde	123-11-5	0,015

Cat.1	Cat.2	Cat.3	Cat.4	Cat.5	Cat.6	Cat.7	Cat.8	Cat.9	Cat.10	Cat.11
0,08 %	0,11 %	0,4 %	1,2 %	0,6 %	2 %	0,2 %	2 %	5 %	2,5 %	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
Artemisia annua extract	Artemisia annua L.	84775-74-6	0,1
Baccharis dracunculifolia oil	Baccharis dracunculifolia DC.	68991-21-9	0,2
Cabreuva oil	Myrocarpus frondosus Fr. Allem	68188-03-4	0,1
Cinnamon bark oil, Laos	Cinnamomum loureiroi Nees	97659-68-2	0,01
Cinnamon leaf oil	Cinnamomum zeylanicum Blume	8015-91-6	0,12
Gardenia tahitensis oil	Gardenia tahitensis DC.	683748-01-8	0,1
Orange blossoms absolute	Citrus aurantium L. var. amara	8030-28-2	8
Orange flower oil, bitter (neroli and neroli bigarade)	Citrus aurantium L.	8016-38-4	1,5
Palmarosa oil	Cymbopogon martinii (Roxb.) Wats	8014-19-5	1
Tuberose absolute	Poliantes tuberosa L.	8024-05-3	0,3
Tuberose concrete	Poliantes tuberosa L.	8024-05-3	0,3
Yarrow oil	Achillea millefolium L.	8022-07-9	0,1
Ylang ylang oil I	Cananga odorata (Lam.) Hook.f. & Thomson	8006-81-3	1,5
Ylang ylang oil II	Cananga odorata (Lam.) Hook.f. & Thomson	8006-81-3	2
Ylang ylang oil III	Cananga odorata (Lam.) Hook.f. & Thomson	8006-81-3	2
Ylang, Ylang oil extra	Cananga odorata (Lam.) Hook.f. & Thomson	8006-81-3	1,5
Ylang, Ylang oil, terpene-free	Cananga odorata (Lam.) Hook.f. & Thomson	68952-44-3	2,5

Maximum usage according to the product category :
Ingredients containing
Ingredient Name	CAS N°	Estimated Concentration
Benzyl alcohol	100-51-6	0,05
p-Methoxybenzaldehyde	123-11-5	0,015
Benzyl alcohol	100-51-6	2,8
Benzyl benzoate	120-51-4	8,9
Coumarin	91-64-5	1,2

Cat.1	Cat.2	Cat.3	Cat.4	Cat.5A	Cat.5B	Cat.5C	Cat.5D	Cat.6
0,21 %	0,062 %	1,2 %	1,2 %	0,29 %	0,29 %	0,29 %	0,29 %	0,68 %
Cat.7A	Cat.7B	Cat.8	Cat.9	Cat.10A	Cat.10B	Cat.11A	Cat.11B	Cat.12
2,4 %	2,4 %	0,12 %	2,3 %	8,1 %	8,1 %	4,5 %	4,5 %	Not restricted

List of natural ingredients containing the material presented here
Ingredient Name	Botanical Name	CAS N°	Estimated Concentration
Ambrette seed absolute	Hibiscus abelmoschus L.	8015-62-1	5
Ambrette seed oil	Hibiscus abelmoschus L.	8015-62-1	3
Ambrette tincture	Hibiscus abelmoschus L.	8015-62-1	0,2
Arnica absolute	Arnica montana L.	8057-65-6	1,2
Arnica oils, montana	Arnica montana L.	8057-65-6	5
Artemisia arborescens extract	Artemisia arborescens L.	92113-09-2	0,1
Baccharis dracunculifolia oil	Baccharis dracunculifolia	68991-21-9	0,2
Cabreuva oil	Myrocarpus frondosus Fr. Allem	68188-03-4	0,1
Calamus oil	Acorus calamus L.	8015-79-0	0,5
Cananga oil	Cananga odorata (Lam.) Hook. f. & Thomson (forma macrophylla Steenis)	68606-83-7	2
Cinnamon bark oil, Laos	Cinnamomum loureiroi Nees	97659-68-2	0,01
Cinnamon leaf oil	Cinnamomum zeylanicum Blume	8015-91-6	0,12
Gardenia tahitensis oil	Gardenia tahitensis DC.	683748-01-8	0,1
Jasmine sambac absolute	Jasminum sambac (L.) Aiton	103798-23-6	0,6
Orange blossoms absolute	Citrus aurantium L. spp. Amara Link	8016-38-4	8
Orange flower oil, bitter (neroli and neroli bigarade)	Citrus aurantium L. spp. Amara Link	8016-38-4	1,8
Palmarosa oil	Cymbopogon martinii (Roxb.) Wats	8014-19-5	1
Rose oil	Rosa x damascena Mill.	8007-01-0	1
Sandalwood oil	Santalum album L.	8006-87-9	0,7
Sandalwood oil, Australian	Santalum spicata (R.Br.) A.DC.	8024-35-9	11
Sandalwood oil, New Caledonian	Santalum austrocaledonicum Vieill	91845-48-6	0,7
Tuberose absolute	Poliantes tuberosa L.	8024-05-3	0,3
Tuberose concrete	Poliantes tuberosa L.	8024-05-3	0,3
Yarrow oil	Achillea millefolium L.	8022-07-9	0,1
Ylang ylang oil I	Cananga odorata (Lam.) Hook. f. &Thomson oil (forma genuine Steenis)	8006-81-3	1,4
Ylang ylang oil II	Cananga odorata (Lam.) Hook. f. &Thomson oil (forma genuine Steenis)	8006-81-3	2
Ylang ylang oil III	Cananga odorata (Lam.) Hook. f. &Thomson oil (forma genuine Steenis)	8006-81-3	1,5
Ylang, Ylang oil extra	Cananga odorata (Lam.) Hook. f. &Thomson oil (forma genuine Steenis)	8006-81-3	1,5
Ylang, Ylang oil, terpene-free	Cananga odorata (Lam.) Hook. f. &Thomson oil (forma genuine Steenis)	68952-44-3	2,5

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 :

Aldehyde C-7 is used in marine, floral, tea, melon, mimosa, hyacinth and citrus notes. Can bring a plastic effect if overdosed.

Other names :

Heptanal, enanthal, oenanthal, oenanthol

Other comments :

In comparision to other aliphatic aldehydes as Aldehyde C-8, Aldehyde C-7 does not have an aldehydic facet and is much more floral. Anosmy is current regarding this molecule

Exploring the branches of scent

Year of discovery :

Data not available.

Synthesis route :

Synthesis precursor :

Aldehyde C-7 enters the first stage of synthesis of Neofolione®, in combination with malonic acid. It forms a Schiff base by reaction with Methyl Anthranilate or Indole for example. It can also be used for condensation with another aldehyde or ketone to form the desired alcene.

Isomerism :

Isoamyl Acetate and Methyl Amyl Ketone are constitutional isomers of Aldehyde C-7, but have a very different smell: more fruity for Isoamyl Acetate and more mushroom for Methyl Amyl Ketone.

Natural availability :

Aldehyde C-7 can be found in its natural state, especially in Champaca Absolute, Narcissus Absolute or Damask Rose Absolute (and other roses), from which it can be extracted by fractional distillation.

Allergens :

This ingredient does not contain any allergen.

Annexe I :

Restriction type :

RESTRICTION QRA

Cause of restriction :

Amendment :

40

Comments :

Quantitative usage limits :

Annexe I :

Annexe I :

Restriction type :

Cause of restriction :

DERMAL SENSITIZATION

Amendment :

49

Comments :

Farnesol should only be used as a fragrance ingredient if it contains a minimum of 96% of farnesol isomers as determined by GLC.

Quantitative limit on the use :

Annexe I :