If carbon 1 is the carbonyl group of an aldohexose, which carbon determines if the sugar is a D- or L- stereoisomer?
A) 1
B) 2
C) 3
D) 4
E) 5

Question

Quizplus · Accepted Answer

The configuration of the hydroxyl group on carbon 5 (the last chiral center farthest from the carbonyl group in an aldohexose) determines if the sugar is a D- or L- stereoisomer. In the D-form, the hydroxyl group on this carbon is on the right, and in the L-form, it is on the left.

If Carbon 1 Is the Carbonyl Group of an Aldohexose