''beta''-Pinene

β-Pinene
Names
Preferred IUPAC name
6,6-Dimethyl-2-methylidenebicyclo[3.1.1]heptane
Other names
6,6-Dimethyl-2-methylenebicyclo[3.1.1]heptane
2(10)-Pinene
Nopinene
Pseudopinene
Identifiers
3D model (JSmol)
ChEBI
ChemSpider
ECHA InfoCard 100.004.430
KEGG
UNII
Properties
C10H16
Molar mass 136.24 g·mol−1
Appearance Colourless liquid
Density 0.872 g/mL
Hazards
R-phrases (outdated) R10 R36 R37 R38
S-phrases (outdated) S26 S36
NFPA 704
Flammability code 3: Liquids and solids that can be ignited under almost all ambient temperature conditions. Flash point between 23 and 38 °C (73 and 100 °F). E.g., gasoline) Health code 1: Exposure would cause irritation but only minor residual injury. E.g., turpentine Reactivity code 0: Normally stable, even under fire exposure conditions, and is not reactive with water. E.g., liquid nitrogen Special hazards (white): no codeNFPA 704 four-colored diamond
3
1
0
Flash point 36 °C (97 °F; 309 K)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references

beta-Pinene (β-pinene) is a monoterpene, an organic compound found in plants. It is one of the two isomers of pinene, the other being α-pinene. It is colorless liquid soluble in alcohol, but not water. It has a woody-green pine-like smell.

This is one of the most abundant compounds released by forest trees.[1] If oxidized in air, the allylic products of the pinocarveol and myrtenol family prevail.[2]

Plants that contain β-pinene

Many plants from many botanical families contain the compound, including:

See also

References

  1. ↑ Geron, C., et al. (2000). A review and synthesis of monoterpene speciation from forests in the United States. Atmospheric Environment 34(11), 1761-81.
  2. 1 2 Neuenschwander, U., et al. (2011). Peculiarities of β-pinene autoxidation. ChemSusChem 4(11), 1613-21.
  3. ↑ Li, R. and Z. T. Jiang. (2004). Chemical composition of the essential oil of Cuminum cyminum L. from China. Flavour and Fragrance Journal 19(4), 311-13.
  4. ↑ Wang, L., et al. (2009). Ultrasonic nebulization extraction coupled with headspace single drop microextraction and gas chromatography-mass spectrometry for analysis of the essential oil in Cuminum cyminum L. Analytica Chimica Acta 647(1), 72-77.
  5. ↑ Tinseth, G. The Essential Oil of Hops: Hop Aroma and Flavor in Hops and Beer. Brewing Techniques January/February 1994. Accessed July 21, 2010.
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