D-Tryptophan

D-Tryptophan is the D-enantiomer of the essential amino acid tryptophan, which is more commonly found in its L-form in nature and in proteins. D-Tryptophan is not incorporated into proteins but has specialized uses in research and medicine. It serves as a chiral building block in organic synthesis and is studied for its potential pharmacological effects, although these are generally less well-understood compared to L-tryptophan.