The molecule is a tripeptide composed of L-phenylalanine and two L-proline units joined by peptide linkages. It has a role as a metabolite. It derives from a L-phenylalanine and a L-proline.
(2S)-1-[(2S)-1-[(2S)-2-amino-3-phenylpropanoyl]pyrrolidine-2-carbonyl]pyrrolidine-2-carboxylic acid