Tri(pyridin-3-yl)amine is primarily used as a ligand in coordination chemistry, particularly in the development of transition metal catalysts. Its structure allows it to bind effectively to metal centers, making it valuable in catalytic processes such as cross-coupling reactions and oxidation reactions. It is also employed in the design of functional materials, including those used in organic electronics and sensors, due to its electron-donating properties and structural stability. Additionally, this compound serves as a building block in the synthesis of more complex nitrogen-containing heterocyclic systems, which can exhibit biological activity or be used in medicinal chemistry research.