Description

Appearance: colorless to light yellow liquid 
Organoleptic properties: has a pleasant light smell of balsam 

Myrcene,or β-myrcene, is an olefinic natural organic compound. It is classified as a hydrocarbon, more precisely as a monoterpene. Terpenes are dimers of isoprene, and myrcene is one of the most important. It is a component of the essential oil of several plants including bay, ylang-ylang, wild thyme, and hops.It is produced mainly semi-synthetically from myrcia, from which it gets its name. It is a key intermediate in the production of several fragrances. α-Myrcene is the name for the structural isomer *-methyl**-methylene*1,*-octadiene, which is not found in nature and is little used.   Use in fragrance industry Myrcene is an important intermediate used in the perfumery industry. It has pleasant odor, but is rarely used directly. It is also unstable in air, tending to polymerize. Samples are stabilized by the addition of alkylphenols or tocopherol. It is thus more highly valued as an intermediate for the preparation of flavor and fragrance chemicals such as menthol, citral, citronellol, citronellal, geraniol, nerol, and linalool. Treatment of myrcene with hydrogen chloride gives geranyl chloride, neryl chloride, and linalyl chloride. Treatment of these compounds with acetate gives geranyl acetate, neryl acetate, and linalyl acetate, respectively. These esters are then hydrolyzed to the corresponding alcohols. Myrcene is also converted to myrcenol, another fragrance found in lavender, via uncatalyzed hydroamination of the 1,*-diene followed by hydrolysis and Pd-catalyzed removal of the amine. As 1,*-dienes, both myrcene and mycenol undergo Diels-Alder reactions with several dienophiles such as acrolein to give cyclohexene derivatives that are also useful fragrances. Other models: 

gum rosin,litsea cubeba oil,citronella oil,wormwood 
oil,Alpha-pinene,beta-pinene,turpentine oil,pine 
oil,terpineol,dihydromyrcenol,terpene resin,gamma-terpinene,rosemary 
oil,white camphor oil,tea tree oil,fennel oil,lavender 
oil,pine needle oil,camphor oil,cinnamon oil,star aniseed 
oil,menthol crystal,borneol,lemon oil,linaly acetate,citral,fennel alcohol,spikenard oil,peppermint oil,eucalyptus oil,cinnamic aldehyde,myrcene,basil oil,lemongrass oil,garlic oil,ginger oil,anethole,and so on.