serotonin neurotransmitter molecule. 3d rendering. atoms are represented as spheres with conventional color coding: hydrogen (

serotonin serotonine 5hydrotryptamine monoamine neurotransmitter tryptophan gastrointestinal tract blood platelets central nervous system happiness wellbeing enterochromaffin antidepressant platelet hemostasis clotting antiemetic hydrogen carbon nitrogen oxygen molecule atoms atomic model molecular compound composition chemical chemistry bond structure formula 3d rendering illustration