800x587pxserotonin molecule structure, chemical diagram of serotonin, skeletal formula serotonin, neurotransmitter chemical structure, molecular biology illustration, neurochemical pathway, pharmacological diagram
800x328pxdopamine molecule diagram, serotonin chemical structure, phenethylamine neurotransmitter, black and white chemistry illustration, molecular symmetry analysis, neurochemical compound visual, brain chemistry infographic
