Used primarily as an intermediate in organic synthesis, especially in the development of pharmaceuticals and agrochemicals. Its iodine substituents make it suitable for cross-coupling reactions, such as Suzuki or Heck reactions, enabling the construction of complex heterocyclic systems. It also serves in the preparation of bioactive molecules where the pyridazine core is required for activity. Additionally, it has been explored in the synthesis of radiolabeled compounds for medical imaging due to the presence of iodine atoms that can be substituted with radioactive isotopes.