SMILES: C1=CC=C2C(=C1)C(=CN2)C[C@@H](C(=O)N[C@@H](CS)C(=O)N[C@@H](CC3=CN=CN3)C(=O)O)NC(=O)[C@H](CC(=O)N)N
Description: The molecule is a tetrapeptide composed of L-asparagine, L-tryptophan, L-cysteine and L-histidine joined in sequence by peptide linkages. It has a role as a metabolite. It derives from a L-asparagine, a L-tryptophan, a L-cysteine and a L-histidine.