title: Crystal structure of 4-(3-carb-oxy-pro-pan-amido)-2-hy-droxy-benzoic acid mono-hydrate.
abstract: In the title hydrate, C11H11NO6·H2O, the organic mol-ecule is approximately planar (r.m.s. deviation for the non-H atoms = 0.129 Å) and an intra-molecular O-H⋯O hydrogen bond closes an S(6) ring. In the crystal, the benzoic acid group participates in an O-H⋯O hydrogen bond to the water mol-ecule and accepts a similar bond from another water mol-ecule. The other -CO2H group forms a carb-oxy-lic acid inversion dimer, thereby forming an R 2 (2)(8) loop. These bonds, along with N-H⋯O and C-H⋯O inter-actions, generate a three-dimensional network.
authors.affiliation: Department of Physics, University of Sargodha, Sargodha, Punjab, Pakistan.
authors.forename: Muhammad Nawaz
authors.initials: MN
authors.lastname: Tahir
authors.affiliation: Department of Chemistry, The University of Azad Jammu and Kashmir, Muzaffarabad 13100, Pakistan.
authors.forename: Muhammad Naeem
authors.initials: MN
authors.lastname: Ahmed
authors.affiliation: Department of Chemistry, Mirpur University of Science and Technology, Mirpur, Azad Jammu and Kashmir, Pakistan.
authors.forename: Arshad Farooq
authors.initials: AF
authors.lastname: Butt
authors.affiliation: Department of Chemistry, University of Sargodha, Sargodha, Pakistan.
authors.forename: Hazoor Ahmad
authors.initials: HA
authors.lastname: Shad
keywords: 2-hy­droxy­benzoic acid; crystal structure; hydrate; hydrogen bonding