2-Hy-droxy-ethyl-ammonium [2-(2,6-di-chloro-anilino)phen-yl]acetate monohydrate.

In the solid-state structure of the title compound derived from diclofenac, C 2 H 8 NO + ·C 14 H 10 Cl 2 NO 2 - ·H 2 O, the asymmetric unit contains one cation, one anion and a water mol-ecule, all in general positions. A complex network of hydrogen bonds is present in the crystal structure.