ScenTree, la nouvelle encyclopédie des ingrédients de parfum.

Exploring the branches of scent

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Crédits photo: ScenTree SAS

CAS number :

3658-77-3

EINECS number :

222-908-8

FEMA number :

3174

JECFA number :

1446

FLAVIS number :

13.010

Volatility :

Head/Heart

Appearance :

White solid

Price Range :

€€€

Stability :

Olfactively very unstable.

Density :

1.322

Molecular formula :

C₆H₈O₃

Molecular Weight :

128.13 g/mol

Flash Point :

>212°F (>100°C)

Log P :

0.95

Fusion Point :

174.2°F (79°C)

Boiling Point :

446°F (230°C)

Detection Threshold :

0.03 ppb to 60 ppb (0.000006% !) according to people

Crédits photo: ScenTree SAS

Year of discovery :

Data not available.

Synthesis route :

Furaneol® can be synthesized in two main ways. Only one is exposed here: it consists firstly in an ethylation of Acetaldehyde (or ethanal), to synthesize 2,5-hexynediol. The second step is an ozonolysis of this compound in order to obtain hexane-2,5-diol-3,4-dione, which can finally be cyclized in an acid medium to give Furaneol®.

Synthesis precursor :

Furaneol® is not a precursor to the synthesis of another compound of olfactory interest.

Isomerism :

Furaneol® has no isomer commonly used in perfumery.

Natural availability :

Natural Furaneol® can be extracted from certain fruits and is formed by pyrogenation of some food (almond for example). In the majority of cases, it is synthetic Furaneol® that is used in perfumery.

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

Annexe I :

Maximum usage according to the product category :
Ingredients containing
Ingredient Name	CAS N°	Estimated Concentration
Geraniol	106-24-1	0,7

Restriction type :

SPECIFICATIONS

Cause of restriction :

CARGINOGENICITY, GENOTOXICITY

Amendment :

43

Comments :

Crude birch wood (bark) pyrolysates (oils) derived by pyrolysis (destructive distillation) of the wood or bark of Betula Pubescens, Betula Pendula, Betula Lenta or Betula Alba should not be used as a fragrance ingredient. Only rectified (purified) birch tar oils being in compliance with the below limitations for polynuclear aromatic hydrocarbons should be used. Limit content of polynuclear aromatic hydrocarbons (PAH) resulting from the use of rectified oils according to Good Manufacturing Practice. Benzopyrene and 1,2-Benzanthracene are to be used as markers for PAH. If used alone or in combination with rectified Cade oil, rectified Styrax oil or rectified Opoponax oil, the total concentration of both of the markers should not exceed 1 ppb in the final product.

Quantitative usage limits :

Cat.1	Cat.2	Cat.3	Cat.4	Cat.5	Cat.6	Cat.7	Cat.8	Cat.9	Cat.10	Cat.11
0,02 %	0,03 %	0,1 %	0,1 %	0,1 %	0,5 %	0,1 %	0,1 %	0,1 %	0,1 %	Not restricted

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

Annexe I :

Some regulated synthetic ingredients are found in nature and in certain proportions in natural ingredients. This presence in nature has to be taken into account when calculating limits of use recommended by the IFRA. In case you do not know these concentrations, you can use the ones estimated by the IFRA. Here They are :

List of natural ingredients containing the material presented here
Ingredient Name	Botanical Name	CAS N°	Estimated Concentration

Annexe I :

Maximum usage according to the product category :
Ingredients containing
Ingredient Name	CAS N°	Estimated Concentration
Geraniol	106-24-1	0,7
alpha-Cedrene	469-61-4	0,05
Farnesol	4602-84-0	11
alpha-Cedrene	469-61-4	0,2
2-Methoxy-4-propylphenol	2785-87-7	0,9

Restriction type :

RESTRICTION

Cause of restriction :

DERMAL SENSITIZATION AND SYSTEMIC TOXICITY

Amendment :

49

Comments :

4-Hydroxy-2,5-dimethyl-3(2H)-furanone has been found in natural extracts but only at trace levels.

Quantitative limit on the use :

Cat.1	Cat.2	Cat.3	Cat.4	Cat.5A	Cat.5B	Cat.5C	Cat.5D	Cat.6
0,045 %	0,014 %	0,27 %	0,25 %	0,064 %	0,064 %	0,064 %	0,021 %	0,15 %
Cat.7A	Cat.7B	Cat.8	Cat.9	Cat.10A	Cat.10B	Cat.11A	Cat.11B	Cat.12
0,52 %	0,52 %	0,021 %	0,49 %	0,49 %	1,8 %	0,021 %	0,021 %	Not restricted

Annexe I :

Some regulated synthetic ingredients are found in nature and in certain proportions in natural ingredients. This presence in nature has to be taken into account when calculating limits of use recommended by the IFRA. In case you do not know these concentrations, you can use the ones estimated by the IFRA. Here They are :

List of natural ingredients containing the material presented here
Ingredient Name	Botanical Name	CAS N°	Estimated Concentration

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 :

Furaneol®makes it possible to add a burnt, sweet, jammy and gourmet note to a fruity accord. Used for strawberry and pineapple accords in particular.

Other names :

Fraision®, Furonol, Strawberry Furanol, 4-hydroxy-2,5-dimethylfuran-3-one, alletone, alnose, cadion, carmelan, dimethyl hydroxyfuranone, 2,5-dimethyl-3-hydroxy-4-oxo-4,5-dihydrofuran, 2,5-dimethyl-4-hydroxy-3-furanone, enhansol, flerueol, furanone, furonol, 4-hydroxy-2,5-dimethyl-2-hydrofuran-3-one, 4-hydroxy-2,5-dimethylfuran-3-one, pineapple ketone, strawberry furanone, walnut furanone

Other comments :

In comparison with other gourmand notes as Maltol and Ethyl Maltol, Furaneol® has a more pyrogenic note, reminiscent of cooked strawberry. It also is more powerful. Its detection threshold is very low comparing to Maltol, a few ppm for it .