terpenes

also defines: monoterpenes, hemiterpenes, sesquiterpenes, diterpenes, sesterterpenes, triterpenes, tetraterpenes, polyterpenes
https://doi.org/10.1351/goldbook.T06278
Hydrocarbons of biological origin having carbon skeletons formally derived from isoprene $\ce{[CH2=C(CH3)CH=CH2]}$. This class is subdivided into the $\ce{C5}$ hemiterpenes, $\ce{C10}$ monoterpenes, $\ce{C15}$ sesquiterpenes, $\ce{C20}$ diterpenes, $\ce{C25}$ sesterterpenes, $\ce{C30}$ triterpenes, $\ce{C40}$ tetraterpenes (carotenoids) and $\ce{C5_{n}}$ polyterpenes.
See also: carotenes, carotenoids, isoprenoids, prenols, retinoids, steroids, terpenoids
Source:
PAC, 1995, 67, 1307. (Glossary of class names of organic compounds and reactivity intermediates based on structure (IUPAC Recommendations 1995)) on page 1371 [Terms] [Paper]
Citation: 'terpenes' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. https://doi.org/10.1351/goldbook.T06278 RIS BibTex EndNote
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