Examlex
Which of the following is an example of a radiopaque structure?
α-D-Ribofuranose
A sugar derivative where the pentose sugar ribose is in its furanose form (a five-membered oxygen-containing ring) and has a specific orientation (alpha) of the hydroxyl group attached to the anomeric carbon.
Epimers
Stereoisomers that differ in configuration at only one stereogenic center among several.
D-Arabinose
A naturally occurring pentose sugar, which is a component of many polysaccharides and glycoproteins.
D-Xylose
A sugar molecule classified as an aldopentose, which means it has five carbon atoms and contains an aldehyde functional group.
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