catena-Poly[[aqua(ethyl anilinophosphonato-κO)sodium(I)]-di-μ-aqua]

In the title compound, [Na(C8H11NO3P)(H2O)3]n, the sodium cation is octahedrally coordinated by five water molecules and one O-bonded ethyl anilinophosphonate anion. Four of the water molecules bridge to adjacent sodium ions, resulting in an infinite chain of edge-sharing NaO6 polyhedra. A network of N—H...O and O—H...O hydrogen bonds helps to stabilize the crystal structure