title: Ultraviolet and infrared spectral studies on the structure and tautomeric forms of 2-thiobarbituric acids and 2-thiobarbitals.
mesh_terms: D001463:Barbiturates; D002845:Chromatography; D006863:Hydrogen-Ion Concentration; D008968:Molecular Conformation; D013055:Spectrophotometry, Infrared; D013056:Spectrophotometry, Ultraviolet
chemical_list: D001463:Barbiturates