Photo credits: ScenTree SAS

Silvial®

Floral > Light Flowers > Aldehydes > Aquatic

Alpha-methyl-4-(2-methylpropyl) benzenepropanal ; Para-isobutyl-alpha-methyl hydrocinnamaldehyde ; Aldéhyde para-isobutyl-alpha-methyl hydrocinnamique ; 3-(4-isobutylphenyl)-2-methylpropanal ; 3-(para-cumenyl)-2-methyl propionaldehyde ; Cyclamen homoaldehyde ; Homoaldehyde cyclamen ; 2-methyl-3-(4-(2-methyl propyl)phenyl) propanal ; Rhodial ; Suzaral

Photo credits: ScenTree SAS

Company	Ingredient Name	Learn more	Naturality	Certifications	MOQ	Purity
	Silvial® - 30gr	Discover	-		30grs	-

Silvial® - 30gr

General Presentation

CAS N° :
6658-48-6
EINECS number :
229-695-0
FEMA number :
Donnée indisponible.
FLAVIS number :
Donnée indisponible.

JECFA number :
Donnée indisponible.
Volatility :
Heart
Price Range :
€€

Physico-chemical properties

Appearance :
Colorless liquid
Density :
0,94
Refractive Index @20°C :
Donnée indisponible.
Optical rotation :
Donnée indisponible.
Vapor pressure :
Donnée indisponible.
Flash Point :
120°C (248°F)

Molecular formula :
C₁₄H₂₀O
Molecular Weight :
204,31 g/mol
Log P :
4,7
Fusion Point :
Donnée indisponible.
Boiling Point :
245°C (473°F)
Detection Threshold :
0,7 ng/l air

Chemistry & Uses

Uses in perfumery :

Silvial® is usually used to replace regulated aldehydes as Lilial® or Lyral® in lily of the valley accords for example. It brings a powerful and fresh note, with a floral identity.

Year of discovery :

Patent N°1.430.164 (FR) published on Nov.13, 1964 by Rhône-Poulenc company

Natural availability :

Sylvial® is not found in nature. Thus, it is not extracted from any plant.

Isomerism :

Silvial® has one asymmetric carbon. Nevertheless, a mixture of these two molecules is used in perfumes. Also, ortho and meta isomers of Silvial® are not used in perfumery. Eventually, Lilial® is a positional isomer of Silvial®. Its smell is fresher and fruitier, and less aqueous.

Synthesis precursor :

Reacting with Methyl Anthranilate, Silvial® can help synthesizing its Schiff base, although it is very poorly used.

Synthesis route :

As it has a structure close to Lilial® and Cyclamen Aldehyde®, the synthesis of Silvial® can be made in two different ways. The first one consists in a condensation of two aldehydes : 4-isobutylbenzaldehyde and Acetaldehyde, using an excess of the first reagent, and adding the second one slowly, to prevent autocondensation of Acetaldehyde. Then, a catalytic hydrogenation of the obtained product leads to Silvial®. The second synthetic route is a Friedel and Craft reaction involving isobutylbenzene and Methacrolein diacetate, followed by subsequent acidic hydrolysis of the intermediary product.

Stability :

Very unstable in stong acidic (detergents) and alkaline (liquid bleach) bases. Stable in other types of bases.

Other comments :

Sylvial® has a structure close to Lilial®, Cyclamen Aldehyde®, Bourgeonal™ and Florhydral®. Each of these molecules have a light flower smell, with a more marine nuance for Cyclamen Aldehyde®, greener for Bourgeonal™ and fruitier for Florhydral® for example.

Labelling

Allergens :

This ingredient does not contain any allergen.

Signal word :

Warning

Hazard pictograms :

Precautionary statements :

HAZARD	PRECAUTION
H317 May cause an allergic skin reaction. H361 Suspected of damaging fertility or the unborn child.	P201 Obtain special instructions before use. P261 Avoid breathing dust/fume/gas/mist/vapours/spray. P280 Wear protective gloves/protective clothing/eye protection/face protection. P281 Use personal protective equipment as required. P308 + P313 IF exposed or concerned: Get medical advice/attention. P333 + P313 If skin irritation or rash occurs: Get medical advice/attention.

IFRA

IFRA 51^th :

This ingredient is restricted by the 51th amendment

Restriction type :
RESTRICTION
Cause of restriction :
DERMAL SENSITIZATION AND SYSTEMIC TOXICITY
Amendment :
49

Quantitative limit on the use :

Cat.1	Cat.2	Cat.3	Cat.4	Cat.5 A B C D		Cat.6
0,08 %	0,053 %	0,8 %	0,99 %	0,25 % 0,25 % 0,25 % 0,083 %		0,08 %
Cat.5 A B C D			Cat.6
0,25 % 0,25 % 0,25 % 0,083 %			0,08 %
Cat.7 A B		Cat.8	Cat.9	Cat.10 A B	Cat.11 A B	Cat.12
0,72 % 0,72 %		0,083 %	1,9 %	1,9 % 5,4 %	0,083 % 0,083 %	No Restriction
Cat.10 A B	Cat.11 A B	Cat.12
1,9 % 5,4 %	0,083 % 0,083 %	No Restriction

Disclaimer :

ScenTree is solely responsible for the information provided here.

To learn more about IFRA's standards : https://ifrafragrance.org/safe-use/library

Silvial®

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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 :