Description5-Hydroxy-L-tryptophan-3D-spacefill.png Space-filling model of the 5-hydroxytryptophan molecule, a chemical precursor of serotonin and melatonin
Description5-Hydroxy-L-tryptophan-zwitterion-3D-spacefill.png Space-filling model of the 5-hydroxytryptophan molecule, a chemical precursor of serotonin