Used primarily as an intermediate in the synthesis of herbicides, particularly 2,4-dichlorophenoxyacetic acid (2,4-D), which is widely applied in agriculture to control broadleaf weeds. It also serves as a precursor in the production of certain dyes and pharmaceuticals. In industrial settings, it is utilized in the manufacture of antiseptics and disinfectants. Additionally, it finds application in research laboratories for organic synthesis and chemical studies. Proper handling is essential due to its toxic and corrosive nature.