Lyral

CAS NO.：31906-04-4
Empirical Formula: C13H22O2
Molecular Weight: 210.31
MDL number: MFCD00019423
EINECS: 250-863-4
SAFETY DATA SHEET (SDS)
Update Date: 2026-04-24 14:58:38

What is Lyral?

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：

The Uses of Lyral

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

The Uses of Lyral

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

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.

Properties of Lyral

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	neat
pka	15.31±0.29(Predicted)
form	Liquid
color	Colourless to Pale Yellow
Odor	at 100.00 %. floral muguet cyclamen rhubarb woody
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 for Lyral

Signal word	Warning
Pictogram(s)	Exclamation Mark Irritant GHS07
GHS Hazard Statements	H302:Acute toxicity,oral H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation H332:Acute toxicity,inhalation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation
Precautionary Statement Codes	P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P280:Wear protective gloves/protective clothing/eye protection/face protection. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.