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Either of a pair of molecules that are mirror images but cannot be superimposed on each other, and that rotate the plane of polarized light by an equal amount in opposite directions. Also called enantiomorph, optical isomer.

[Greek enantios, opposite; see ant- in Indo-European roots + -mer, isomer.]

en·an′ti·o·mer′ic (-mĕr′ĭk) adj.


(Chemistry) chem a molecule that exhibits stereoisomerism because of the presence of one or more chiral centres


(ɪˈnæn ti ə mər)

either of a pair of optical isomers that are mirror images of each other.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.enantiomer - either one of a pair of compounds (crystals or molecules) that are mirror images on each other but are not identical
chemical compound, compound - (chemistry) a substance formed by chemical union of two or more elements or ingredients in definite proportion by weight
References in periodicals archive ?
Chiral Technologies, the global leader in enantioselective chromatography, serves pharmaceutical and other life science industries and offers the largest portfolio of chiral stationary phases (CSPs) and analytical and preparative chiral columns for the separation of racemic mixtures into single enantiomers.
The separation of enantiomers is of great importance to industry in the domain of medicine.
Various enantiomers of the chiral compounds show different biological activities in the living systems during the medical and pharmaceutical processes.
Different pharmacological properties of two enantiomers in a unique beta-blocker, nebivolol.
It was found that the glycoside enantiomers (Q2 and Q3) revealed completely different permeation profiles.
Table 2 Effects of GBE and bilohalide on plasma concentration of warfarin and 7-hydroxywarfarin enantiomers in mice given warfarin racemate.
Biological molecules, such as RNA and proteins, can exist in either a natural or unnatural form, called enantiomers.
continues to enhance the world of enantiomeric separation with the introduction of two new customer-centric packaged solutions, EnantioPrep and ScalePrep, that are intended for high efficiency chiral separation of enantiomers.
The two enantiomers often display different characteristics, so there is considerable financial benefit to separating them cheaply.
The animal data for vigabatrin (Sabril; C), an equal mixture of active and inactive enantiomers, suggest risk, as do the human data.
114) An equal mixture of enantiomers is termed a racemic mixture.
A representative chromatogram showing resolution of derivatives of enantiomers is shown in Fig-2.