0
tyrosine
Chromaffin cells.
Catecholamines are soluble in water.
catecholamines are chemical transmitters,polar compounds readily oxidized has catechol rings and amines such as dopamine nor-epinpherene and serotenie
non- catecholamines with out catechol rings
no serotonin is not a catecholamine. Catecholamines are dopamine, epinepherine and norepinepherine.