from The American Heritage® Dictionary of the English Language, 4th Edition
- n. One of a set of isomers whose molecules have the same atoms bonded to each other but differ in the way these atoms are arranged in space.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. one of a set of the isomers of a compound that exhibits stereoisomerism
Sorry, no etymologies found.
However, the complexity of a thermodynamically stable sugar stereoisomer has only two possibilities: D or L depending upon whether the C-O ring bond points “up” or “down”.
A stereoisomer can have any chemical properties any other molecule can, relatively unrelated biologically, their general properties will be similar.
It is, however, the wrong stereoisomer mirror image - this no links thing is getting really annoying; isn't this the point of comment moderation?
After several trials, the researchers determined that nickel catalysts, which share similar properties to palladium materials, allowed the α-ketoesters to add to nitroalkenes with high yields and purity; over 90% of the final product corresponded to a specific stereoisomer, a molecule with a hard-to-achieve, geometrically distinct structure.
"Because of its intense sweetness, the R, R stereoisomer in particular should be economically competitive compared to other high intensity sweeteners."
Lexapro (escitalopram) is the S-stereoisomer of the earlier Lundbeck drug Celexa (citalopram).
Thalidomide, for instance, is a powerful, safe anti-nausea drug, but it’s stereoisomer causes nasty birth defects.
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