Serotonin, pAb Serotoninergic cell bodies have been identified in the CNS of many vertebrate species, their processes being found widely spread throughout the brain and the spinal cord. Serotonin (5-HT)-containing fibres are found innervating the gut in many vertebrates and 5-HT is also co-stored with biologically active peptides in elements of the neuroendocrine system. Enterochromaffin (EC) cells contain high levels of serotonin and this cell type is found throughout the vertebrate gut mucosa. Product Specification Alternative Name: 5-Hydroxytryptamine, 5-HT Host: Rat Immunogen: Serotonin glutaraldehyde-haemocyanin complex. Application: Immunohistochemistry Specificity: Recognizes serotonin Species independent. Formulation: Liquid. Antiserum containing 0.1% sodium azide. Long Term Storage: -20°C