4-[Bis(4-fluoro-phen-yl)meth-yl]piperazin-1-ium 2-hy-droxy-benzoate 2-hy-droxy-benzoic acid monosolvate.

The title compound, C(17)H(19)F(2)N(2) (+)·C(7)H(5)O(3) (-)·C(7)H(6)O(3), is a co-crystal from 4-[bis-(4-fluoro-phen-yl)meth-yl]piperazin-1-ium, salicylate anion and salicylic acid in a 1:1:1 ratio. In addition to an intra-molecular O-H⋯O hydrogen bond, the crystal packing shows hydrogen bonds between the piperazinium cation and salicylate anion (N-H⋯O), as well as between the salicylic acid mol-ecule and anion (O-H⋯O), giving rise to a three-dimensional network.