Photo credits: ScenTree SAS

Balsamic Ambery > Coumarinic

Dihydrocoumarin

Chroman-2-one ; Benzo dihydro pyrone ; Benzo dihydropyrone ; 1,2-benzodihydropyrone ; Dihydrobenzopyranone ; 2-oxo-chroman ; 2-chromanone ; Dihydro coumarin ; 3,4-dihydro-1-benzopyran-2-one ; Dihydrobenzopyrone ; Hydrocoumarin ; Melilotic acid lactone ; Melilotic lactone ; Melilotine ; Melilotol

Photo credits: ScenTree SAS

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General Presentation

CAS N° :
119-84-6
EINECS number :
204-354-9
FEMA number :
2381
FLAVIS number :
13.009

JECFA number :
1171
Volatility :
Base
Price Range :
€€

Physico chemical properties

Appearance :
Colorless liquid to solid
Density :
1,169
Refractive Index @20°C :
1,555 – 1,559
Optical rotation :
Data not available.
Vapor pressure :
< 0,1 hPa @20°C
Flash Point :
113°C

Molecular formula :
C₉H₈O₂
Molecular Weight :
148,16 g/mol
Log P :
1
Fusion Point :
23°C
Boiling Point :
272°C
Detection Threshold :
Donnée indisponible.

Chemistry & Uses

Year of discovery :

Data not available.

Natural availability :

Dihydrocoumarin can be extracted in its natural state from several plants, including medicinal tea and Tarragon EO.

Isomerism :

Dihydrocoumarin does not have any isomer used in perfumery.

Synthesis precursor :

Dihydrocoumarin can mediate the synthesis of Hexahydrocoumarin or Octahydrocoumarin. The hydrogenation which allows to obtain these products must be made with the appropriate catalyst and conditions.

Synthesis route :

Dihydrocoumarin is synthesized from coumarin, by a Raney nickel catalysed hydrogenation reaction. On the other hand, Hexahydrocoumarin can be dehydrogenated during the vapor phase, with a palladium catalysis in order to obtain Dihydrocoumarin.

Stability :

Stable in perfumes and diverse functional bases

Other comments :

Dihydrocoumarin does not have a big olfactive difference with Coumarin. This is why it is used as a Coumarin replacer in aromas.

Regulations & IFRA

Allergens :

This ingredient does not contain any allergen.

IFRA 51^th :

This ingredient is restricted by the 51th amendment

Restriction type :

RESTRICTION

Cause of restriction :

DERMAL SENSITIZATION AND SYSTEMIC TOXICITY

Amendment :

Quantitative limit on the use :

Cat.1	Cat.2	Cat.3	Cat.4	Cat.5 A B C D		Cat.6
0,038 %	0,011 %	0,23 %	0,21 %	0,053 % 0,053 % 0,053 % 0,018 %		0,12 %
Cat.5 A B C D			Cat.6
0,053 % 0,053 % 0,053 % 0,018 %			0,12 %
Cat.7 A B		Cat.8	Cat.9	Cat.10 A B	Cat.11 A B	Cat.12
0,43 % 0,43 %		0,018 %	0,41 %	1,5 % 1,5 %	0,018 % 0,018 %	No restriction
Cat.10 A B	Cat.11 A B	Cat.12
1,5 % 1,5 %	0,018 % 0,018 %	No restriction

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 regulated compounds contained in this ingredient
Ingredient Name	Botanical Name	CAS N°	Estimated Concentration
Tonka Bean absolute	Dipteryx odorata	8024-04-2	1,85
Deertongue leaf absolute	Liatris odoratissima (Walt.) Willd.	68606-82-6	2

Dihydrocoumarin

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General Presentation

CAS N° :

EINECS number :

FEMA number :

FLAVIS number :

JECFA number :

Volatility :

Price Range :

Physico chemical properties

Appearance :

Density :

Refractive Index @20°C :

Optical rotation :

Vapor pressure :

Flash Point :

Molecular formula :

Molecular Weight :

Log P :

Fusion Point :

Boiling Point :

Detection Threshold :