isoprene unit

isoprene unit

[¦ī·sə‚prēn ‚yü·nət]
(organic chemistry)
The five-carbon structural unit characteristic of terpenes. Also known as isopentyl unit.
References in periodicals archive ?
9 represented the other methyl carbons of the cis isoprene unit of the chain.
The bromine atom, in most cases, is attached to one of the allylie carbon atoms in the isoprene unit (2).
The FTIR method has been developed to measure the isoprene unit in butyl and halobutyl rubber.
In case of GR composites, GR layers are well exfoliated through ENR matrix and the particle size is smaller compared to GT filled composites, It is because of the good compatibility between oxygen functionalities on the surface of GR and epoxy groups of isoprene units owing to the formation of hydrogen bonds, the exfoliated GR layers were indicated through arrow marks in TEM micrographs.
Terpenes structures are consisting of isoprene units (C5), which may contain oxygen.
In humans, dolichol-19, containing 19 isoprene units, is the most abundant species.
Now it became clear that the secret of synthetic rubber lay in joining together isoprene units into long chains.
Coenzyme Q10 is liposoluble and has 10 isoprene units.
Their chemical structure consists of repeated isoprene (C5H8) units and is classified according to the number of isoprene units: Monoterpenes have two isoprene units (C10), sesquiterpenes have three (C15), and diterpenes have four (C20).
The ubiquinone found in humans, ubidecaquinone, has 10 isoprene units (a total of 50 carbons), ergo, the "10" in CoQ10.
Natural rubber is a polyisoprene produced by Hevea trees and consists of approximately 99% cis-l,4 repeating isoprene units.
The co-terminal entails two trans-l,4 isoprene units (ref.