4-(2-Aminoethyl)benzene-1,2-diol, commonly known as dopamine, is a key neurotransmitter used extensively in biochemical and pharmacological research. It plays a central role in studying neurological processes, including reward pathways, motor control, and cognitive functions, as well as disorders such as Parkinson's disease, schizophrenia, and depression. Dopamine serves as a standard in assays for neurotransmitter detection and receptor binding studies. Additionally, it is utilized in the synthesis of related catecholamines like norepinephrine and epinephrine, and in the development of CNS-targeted pharmaceuticals that modulate dopaminergic pathways. Its applications extend to organic synthesis as a building block for complex molecules in medicinal chemistry.