2-Sulfoethylammonium hexafluoridoantimonate.

The title salt, (C(2)H(8)NO(3)S)[SbF(6)], which contains the protonated form of taurine (2-aminoethanesulfonic acid), was synthesized in anhydrous hydrofluoric acid and recrystallized as colourless block-shaped crystals from liquid SO(2). In the solid state, a three-dimensional network is observed. This is formed by intra- and intermolecular N-H···O, N-H···F and O-H···F hydrogen bonds.