(S,Z)-3-Phenyl-2-[(1,1,1-tri-chloro-7-meth-oxy-2,7-dioxohept-3-en-4-yl)amino]-propanoic acid monohydrate.

In the title compound, C17H18Cl3NO5·H2O, intra-molecular N-H⋯O and C-H⋯Cl hydrogen bonds form S(6) and S(5) ring motifs, respectively. The chiral organic mol-ecule is connected to the solvent water mol-ecule by a short O-H⋯O hydrogen bond. In the crystal, a weak C-H⋯Cl inter-action connects the organic mol-ecules along [100] while the water mol-ecules act as bridges between the organic mol-ecules in both the [100] and [010] directions, generating layers parallel to the ab plane.