(Ethylenediamine)palladium(II) dinitrate is primarily used as a catalyst in various organic synthesis reactions. It plays a significant role in cross-coupling reactions, such as the Suzuki-Miyaura and Heck reactions, which are essential for forming carbon-carbon bonds in the production of pharmaceuticals, agrochemicals, and fine chemicals. Its effectiveness in these reactions stems from its ability to facilitate the insertion of palladium into organic substrates, enabling the formation of complex molecular structures. Additionally, it is employed in the synthesis of palladium-based materials for use in sensors, electronics, and catalytic converters due to its stability and reactivity. The compound is also utilized in research and development for exploring new catalytic processes and materials.