1.1,2,4-Trichlorobenzene is an intermediate for the synthesis of the acaricide triclosan and the herbicide dicamba.

2.It can be used as a raw material for medicine and dyes, as well as a raw material for preparing tetrachlorobenzene and polychlorophenols.

3.It is also a raw material for a wide range of high boiling point solvents and resistance fluids in transformers.