(m-Phenyl-enedimethyl-ene)diammonium dichloride.

The asymmetric unit of the title compound, C(8)H(14)N(2) (2+)·2Cl(-), contains one and a half of the dications and three chloride anions. The half molecule is completed by crystallographic twofold symmetry with two C atoms lying on the rotation axis. The two ammonium groups in each cation adopt a trans conformation with respect ot the benzene ring. The ammonium groups and chloride anions are involved in the formation of a three-dimensional N-H⋯Cl hydrogen-bonding network, which stabilizes the crystal packing.