terpenes's Usage Examples:

His chief researches deal with the polymethylene compounds, the alkaloids, in particular hydrastine and berberine, and the camphors and terpenes.

It thus possesses the same composition as the hydrocarbon of gutta-percha and as that of oil of turpentine and other terpenes which are the chief components of essential oils.

In addition to these, a series of open-chain olefine terpenes is known.

Hexahydrocymene (methyl-i-isopropyl-4-cyclo-hexane), C10H20, is important since it is the parent substance of many terpenes (q.

This work led naturally to the synthesis of many terpenes and members of the camphor group; also to the investigation of various alkaloids and natural colouring matters.

In addition to the types of compounds enumerated above we may also notice purin, tropine and the terpenes.

Derivatives of the cyclo-pentane group are met with in the breaking-down products of the terpenes.

The exact chemical nature of caoutchouc is, however, not determined, and recent researches point to the view that its molecular structure may even be somewhat different from that of the terpenes.

Hemiterpenes The best known is Isoprene, C 5 H 8, which is obtained on distilling caoutchouc or gutta-percha.

They are closely related to the terpenes, with which they occur in plants and of which they are oxidation products.