title: (±)-5-Ethyl-2-(4-isopropyl-4-methyl-5-oxo-4,5-dihydro-1H-imidazol-2-yl)nicotinic acid.
abstract: In the title compound, C(15)H(19)N(3)O(3), owing to an intra-molecular O-H⋯N hydrogen bond, the pyridine and imidazole rings are nearly coplanar and are twisted from each other by a dihedral angle of only 0.92 (9)°. The mol-ecules are linked through inter-molecular N-H⋯O hydrogen bonding, forming an infinite chain parallel to the b axis.
authors.affiliation: Ordered Matter Science Research Center, College of Chemistry and Chemical Engineering, Southeast University, Nanjing 210096, People's Republic of China.
authors.forename: Wei
authors.initials: W
authors.lastname: Dai
authors.forename: Da-Wei
authors.initials: DW
authors.lastname: Fu