biostudies-literature00430Unknown64(Pt 7)Zia-Ur-Rehman MIn the mol-ecule of the title compound, C(10)H(9)N(3)O(2), the pyrazole ring is approximately coplanar with the amino and carboxyl groups. The phenyl group is twisted by 48.13 (3)° relative to this plane. An intra-molecular N-H⋯O hydrogen bond stabilizes the planar conformation of the mol-ecule. The mol-ecules are linked into two-dimensional sheets by two strong inter-molecular N-H⋯N and O-H⋯O hydrogen bonds. The latter forms the classic carboxylic acid dimer motif.Acta crystallographica. Section E, Structure reports onlineo1312-3https://www.ebi.ac.uk/biostudies/studies/S-EPMC2961688biostudies-literature5-Amino-1-phenyl-1H-pyrazole-4-carboxylic acid.PMC2961688Elsegood MRZia-Ur-Rehman MAkbar NShah Zaib Saleem R43false5-Amino-1-phenyl-1H-pyrazole-4-carboxylic acid.In the mol-ecule of the title compound, C(10)H(9)N(3)O(2), the pyrazole ring is approximately coplanar with the amino and carboxyl groups. The phenyl group is twisted by 48.13 (3)° relative to this plane. An intra-molecular N-H⋯O hydrogen bond stabilizes the planar conformation of the mol-ecule. The mol-ecules are linked into two-dimensional sheets by two strong inter-molecular N-H⋯N and O-H⋯O hydrogen bonds. The latter forms the classic carboxylic acid dimer motif.2008-01-01T00:00:00Z2008 Jun2024-12-04T10:41:52.196Z2019-03-27T00:00:01ZS-EPMC29616882120294010.1107/S1600536808018394