SMILES: C1=CC=C(C=C1)C[C@@H](C(=O)N[C@@H](CC2=CNC3=CC=CC=C32)C(=O)N[C@@H](CC4=CNC5=CC=CC=C54)C(=O)O)N
Description: The molecule is a tripeptide composed of L-phenylalanine and two L-tryptophan units joined by peptide linkages. It has a role as a metabolite. It derives from a L-phenylalanine and a L-tryptophan.