From Wikipedia, the free encyclopedia. The terpenoids, also known as isoprenoids, are a large and diverse class of naturally occurring organic chemicals derived from the 5-carbon compound isoprene, and the isoprene polymers called terpenes.

What is another name for isoprene?

Isoprene, also called 2-methyl-1,3-butadiene, a colourless, volatile liquid hydrocarbon obtained in processing petroleum or coal tar and used as a chemical raw material.

Is atropine a Terpenoid?

This class includes many plant poisons and drugs: caffeine, nicotine, atropine, quinine, cocaine etc. Terpenoids are built from five-carbon isoprene units and so can also be called "isoprenoids".