Tetrachlorobenzene is any of three isomeric chlorobenzenes with the molecular formula C6H2Cl4.

They differ by the positions of the chlorine atoms around the ring.

Tetrachlorobenzenes are colorless crystalline compounds.

[1] 1,2,4,5-Tetrachlorobenzene can be produced by electrophilic halogenation of benzenes and some chlorobenzenes.

1,2,4,5-tetrachlorobenzene once was used as intermediates in the production of pesicides,[3] specifically trichlorophenols.