71980-89-7 L-Tryptophanamide, nalpha-acetyl-5-hydroxy-L-tryptophyl-5-hydroxy- N-Acetyl-5-hydroxytryptophyl-5-hydroxytryptophan amide N-Acetyl-5-hydroxytryptophyl-5-hydroxytryptophanamide N-Acetyl-5HTP-5HTP amide