title: Infrared identification of pharmaceutically important sulphonamides with particular reference to the occurrence of polymorphism.
mesh_terms: D007259:Infrared Rays; D013053:Spectrophotometry; D013411:Sulfadiazine / Q000032:analysis*; D013424:Sulfanilamides / Q000032:analysis*; D013426:Sulfaphenazole / Q000032:analysis*; D013432:Sulfathiazoles / Q000032:analysis*; D013449:Sulfonamides / Q000032:analysis*
chemical_list: D013424:Sulfanilamides; D013432:Sulfathiazoles; D013449:Sulfonamides; D013426:Sulfaphenazole; D013411:Sulfadiazine