racemate


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racemate

[′ras·ə‚māt]
(organic chemistry)
An equimolar mixture of the two enantiomers (+ and -, or R and S) of a substance; it is optically inactive.
References in periodicals archive ?
Although a court must not declare that a prima facie case of obviousness exists for an enantiomer over its prior art racemate in the absence of the Graham factual inquiries, (132) the structural similarities between a single enantiomer and its racemate are usually sufficient to establish a prima facie case.
Because it's difficult to predict just how a racemate will affect people, pests, or the environment, most chemists would prefer to avoid such mixtures.
The benefit of deuterium modification was realized for the isolated enantiomer and not the racemate.
Report France Prix Belle de Nuit (Listed) Fontainebleau, 1m41/2f turf, 3yo+ (f+m) THE William Knight-trained Western Pearl was denied by less than a length in a driving finish to the day's feature, as Thierry Thulliez came from last to first aboard Racemate, writes Scott Burton.
Even outside the botanical arena there are challenges, such as identifying whether a single entity ingredient is natural or synthetic, isomerically pure or a racemate, and so forth.
Method for resolving tetrahydroisoquinoline racemate
By using the name hopein, it should then be understood that the compound in question is the estrogenic racemate from hops, rather than the chiral estrogen from Asian shrubs.
MDMA is a chiral compound used as a racemate, and an examination of the pharmacological activity of the individual enantiomers indicates that the (+)-S-enantiomer is more active in terms of "the degree and the disruptiveness of the induced intoxication" (12) than the (-)-R-enantiomer.
The Early History of Stereochemistry: From the Discovery of Molecular Asymmetry and the First Resolution of a Racemate by Pasteur to the Asymmetrical Chiral Carbon of Van't Hoff and Le Bel.
Researchers from the Iowa State University study compared the pharmacokinetics of L-theanine, D-theanine and an ingredient commercially marketed as L-theanine that actually was a racemic mixture of theanine, a 50:50 D- and L-theanine mixture, also known as racemate.