The asymmetric unit of the title compound, (C6H16N)[Cu(C6H2Cl2S2)2]·C4H8O, comprises a [Cu(SC6H2Cl2S)2]− anion, an [iPr2NH2]+ cation and a solvent tetrahydrofuran molecule. The CuIII atom has an almost square-planar CuS4 coordination environment. In the crystal, the anion and the solvent molecule are linked via N—H...O and N—H...S hydrogen bonds involving the diisopropylammonium cation. There are no other significant intermolecular interactions present.
