Used primarily in the synthesis of pharmaceutical compounds, particularly in the development of drugs targeting the central nervous system. It serves as a key intermediate in the production of histamine receptor antagonists, which are crucial for treating allergies and gastrointestinal disorders. Additionally, it is employed in the creation of dyes and pigments due to its ability to form stable, colored complexes. In research, it is utilized in the study of enzyme inhibition and receptor binding mechanisms, aiding in the discovery of new therapeutic agents. Its role in organic synthesis also extends to the preparation of heterocyclic compounds, which are important in medicinal chemistry and material science.