(5-Ammonio-pent-yl)triphenyl-phospho-nium dibromide ethanol solvate.

The alkyl-ammonium chain of the dication in the title mitochondrially targeted (5-ammonio-pent-yl)triphenyl--phos-pho-nium dibromide ethanol solvate, C(23)H(28)NP(2+)·2Br(-)·C(2)H(6)O, is almost planar (r.m.s deviation = 0.0716†à for all non-H atoms) and in the extended form, maximizing the P⋯N distance [7.716†(2)†à ]. The ions and solvent are linked within the crystal by N-H⋯Br, N-H⋯O and O-H⋯Br hydrogen-bonding inter-actions, forming C(3) (2)(6) chains along the b axis, with secondary C-H⋯Br and C-H⋯O inter-actions cross-linking the chains.