Alpha-pinene is a bicyclic monoterpene and one of two pinene isomers (the other being beta-pinene). It also has two enantiomers; one is more common in North American pines, while the other is more common in European pines.

Pinenes can dissolve soft plastics, so hard plastic or glass containers are superior for storage. They are also rapidly absorbed in the lungs, offering high bioavailability and bronchodilation. Pinenes are also acetylcholinesterase inhibitors, allowing them to improve memory, mental focus, and attention.

Alpha-pinene has an exciting trend, as it has increased in prevalence yet decreased in average concentration. This partly can be explained by better testing sensitivities now detecting trace amounts of alpha-pinene produced by other terpene synthases. Actual pinene-producing strains are becoming more rare. 

Vaporization Point = 313℉