Used primarily in organic synthesis, this compound serves as a key intermediate in the production of pharmaceuticals and agrochemicals. Its reactive carbonyl chloride group facilitates the formation of amides, esters, and other derivatives, making it valuable in constructing complex molecules. It is particularly useful in the development of pyridazine-based compounds, which are explored for their potential therapeutic properties, including anti-inflammatory, antimicrobial, and anticancer activities. Additionally, it plays a role in the synthesis of dyes and pigments due to its ability to form stable, conjugated structures.