D-Proline is a key starting material in the total synthesis of ()-secuamamine Aand (R)-harmicine. It can be used as a ligand for the synthesis of chiral polyoxometalate (POM) clusters. It can also be used as a catalyst in the enantioselective -aminoxylation of aldehydes.

For R&D use onlynot for drug household or other uses.

Proline (abbreviated as Pro or P encoded by the codons CCU CCC CCA and CCG) is an -amino acid that is used in the biosynthesis of proteins. It contains an -amino group (which is in the protonated NH2 form under biological conditions) an -carboxylic acid group (which is in the deprotonated COO form under biological conditions) and a side chain pyrrolidine classifying it as a nonpolar(at physiological pH) aliphatic amino acid. It is non-essential in humans meaning the body can synthesize it from the non-essential amino acid L-glutamate.