Lyral Chemical Properties

Boiling point:

289.85°C (rough estimate)

Density 

0.995 g/mL at 20 °C

refractive index 

1.486-1.493

Flash point:

93 °C

storage temp. 

2-8°C

solubility 

Benzene (Slightly), Chloroform (Slightly), DMSO (Slightly), Methanol (Slightly)

form 

Liquid

pka

15.31±0.29(Predicted)

color 

Colourless to Pale Yellow

Odor

at 100.00 %. floral muguet cyclamen rhubarb woody

Odor Type

floral

InChIKey

ORMHZBNNECIKOH-UHFFFAOYSA-N

LogP

2.080

CAS DataBase Reference

31906-04-4(CAS DataBase Reference)

EPA Substance Registry System

3-Cyclohexene-1-carboxaldehyde, 4-(4-hydroxy-4-methylpentyl)- (31906-04-4)

Safety Information

RIDADR 

UN1230 - class 3 - PG 2 - Methanol, solution

WGK Germany 

2

RTECS 

GW2850000

F 

10-23

MSDS

• Language:English Provider:SigmaAldrich

Lyral Usage And Synthesis

Chemical Properties

Colorless liquid

Chemical Properties

Lyral is a colorless, viscous liquid with a sweet odor reminiscent of lily of the valley. The aldehyde can be prepared by a Diels–Alder reaction of myrcenol and acrolein in the presence of a Lewis catalyst (e.g., zinc chloride).
Reaction ofmyrcenol with acrolein at elevated temperatures, without a catalyst, yields a 70 : 30 mixture of the 4- and 3-substituted cyclohexene carboxaldehydes .This mixture is a commercial product. The title compound has excellent fixative properties and is used especially in soap and cosmetics perfumery：

Uses

hydroxyisohexyl 3-cyclohexene carboxaldehyde is fragrance with a light floral scent. It may cause skin irritation.

Uses

Lyral (mixture of isomers) is a suspected fragrance allergen.

Trade name

Lydocal (Hangzhou), Lyral® (IFF)

Contact allergens

Lyral ? is a synthetic blend of two isomers, and one of the most frequently encountered allergen in perfumes. It has to be listed by name in the ingredients of cosmet- ics in the EU, according to the seventh amendment of the cosmetic directive 76/768/EEC.

Lyral(31906-04-4)Related Product Information

• Cyclohexene oxide
• Cyclopentanecarbaldehyde
• CHLOROPHOSPHONAZO III
• TERT-AMYL METHYL ETHER
• Cyclohexene
• Salicylaldehyde
• 4-Hydroxybenzaldehyde
• Lily aldehyde
• Vanillin
• TRANS-5-DECEN-1-OL
• SCHIFF'S BASE-LYRAL AND METHYL ANTHRANILATE,Lyral,methylanthranilateSchiff’sbas
• Dihydromyrcenol
• 3-Cyclohexene-1-carboxaldehyde
• Lyral
• DIHYDROXY BENZALDEHYDE
• 2,6-DIMETHYL-6-HEPTEN-2-OL
• METHYL ANTHRANILATE/LYRAL