Used as a key building block in Suzuki-Miyaura cross-coupling reactions, enabling the synthesis of complex pyridazine-containing compounds. Its primary application lies in pharmaceutical and agrochemical research, where it facilitates the construction of heterocyclic frameworks important for drug discovery. The pinacol ester group enhances stability and handling, making it suitable for iterative synthesis and library generation in medicinal chemistry. It is particularly valuable in developing bioactive molecules with nitrogen-rich cores due to the pyridazine ring’s favorable electronic and binding properties.