Substituted catecholamines CompoundStructure Substituted phenethylamines Dopamine (DA) 3-Methoxytyramine (3-MT) Norepinephrine (NE) Oxidopamine (6-OHDA) Adrenalone Corbadrine Epinephrine (Adrenaline) Dioxifedrine Ethylnorepinephrine Dioxethedrin Isoprenaline Colterol Macromerine Carbidopa Isoetarine Arbutamine Theodrenaline Bitolterol