Used primarily in the synthesis of pharmaceuticals, particularly in the development of antipsychotic drugs. It serves as a key intermediate in the production of phenothiazine derivatives, which are effective in treating mental health disorders like schizophrenia and bipolar disorder. Additionally, it finds application in organic light-emitting diodes (OLEDs) due to its electron-donating properties, enhancing device efficiency. In research, it is utilized as a redox-active compound in electrochemical studies.