Linalool


Also found in: Dictionary, Thesaurus, Medical, Wikipedia.
Related to Linalool: limonene, geraniol

linalool

[lə′näl·ə‚wȯl]
(organic chemistry)
(CH3)2C:CH(CH2)2CCH3OHCH:CH2 A terpene that is a colorless liquid, has a bergamot odor, boils at 195-196°C, and is found in many essential oils, particularly bergamot and rosewood; used as a flavoring agent and in perfumes. Also known as coriandrol.

Linalool

 

2,6-dimethyl-2,7-octadiene-6-ol, a terpene alcohol:

(CH3)2CCHCH2CH2C(CH3) (OH) CHCH2

A colorless liquid with a lavender odor. Boiling point, 198°-200°C; density, 0.862–0.865 g/cm3 at 20°C. Linalool exists in two optically active (+) and (-) forms, as well as the (±) form (a racemic mixture). It is readily converted into geraniol upon action of organic acids and into a mixture of terpineols in the presence of sulfuric acid. Linalool oxidizes to form citral.

Linalool is part of many essential oils (for example, coriandrol) in free form and as esters of acetic acid (linalyl acetate) and butyric acid; the rectification process is used to extract linalool from essential oils. Linalool may also be synthesized from acetylene and isoprene, as well as from α-pinene. Linalool and linalyl acetate are widely used as odoriferous substances in perfume and cosmetics manufacture.

References in periodicals archive ?
Linalool is a monoterpene essential oil found in a number of herbs, including Lavandula spp, Melissa officinalis and Rosmarinus officinalis, many of which are traditional sedatives.
The sex ratio of captured velvetbean caterpillar moths in traps baited with PAA and PAA + linalool was male-biased.
The concentration of Linalool was slightly higher in microwave drying (300w) and oven drying (70 [degrees]C) (26.
Cajuput oil consists of the monoterpene 1,8-cineol, followed by [alpha]-terpineol, limonene, caryophyllene, terpineolene, linalool and [alpha]-caryophyllene (Farag et al.
23] linalyl acetate, 1,8-cineole, linalool and 8-acetoxy linalool were reported to be the major components in S.
linalool and linalyl acetate) have been proposed as being responsible for the perceived anxiolytic effects (Setzer 2009).
hortensis are the phenols, carvacrol and thymol, as well as p-cymene, P-caryophyllene, linalool and other terpenoids [2,5,6,16,18,19].
6th edition describes a capillary gas-chromatographic method and imposes limits for the main terpenoids linalool.
Researchers have revealed that major volatile constituents obtained from the aerial parts of the plant are geranial, linalool, carvacrol, thymol and trans-thujan-4-ol/terpinen-4-ol [2,27,28,29,31,32] The percentage and composition of essential oil could be markedly affected by the geographical environment, places that plants is grown, physical and chemical characteristics of soil, seed source, plant age, parts of plant that which is used for oil isolation and oil isolation method.
Water supply modified the quantitative composition of the oil: the proportion of linalool decreased from 59.