Used primarily as an intermediate in the synthesis of pharmaceuticals and agrochemicals. Its structure allows for selective functionalization in heterocyclic compounds, making it valuable in the development of bioactive molecules. Commonly employed in cross-coupling reactions, such as Suzuki or Buchwald-Hartwig, to build complex pyridazine derivatives. Also explored in medicinal chemistry for the design of kinase inhibitors and other targeted therapies due to the pyridazine core's favorable binding properties.