optical isomer


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optical isomer

[′äp·tə·kəl ′ī·sə·mər]
(chemistry)
References in periodicals archive ?
It is unknown why chelicerates produce the D optical isomer of lactate whilst other arthropods, such as crustaceans, produce the L optical isomer and others (most insects) appear to have lost the expression of the LDH gene (Long & Kaplan 1968; Sacktor & Wormser-Shavit 1966).
The CMEA was careful to extend regulations to cover not only ephedrine, pseudo ephedrine, and phenylpropanolamine, but their salts, optical isomers, and salts of optical isomers as well.
D-amino acids are stereoisomers, or optical isomers, of naturally occurring L-amino acids, and the two have almost identical physical and chemical properties.
The two types of vitamin E differ as optical isomers (stereoisomers).