title: [Polymorphism of trimethoprim. I. Preparation of polymorph modifications (I,II,III) and of a hydrate (TMP. H2O)].
mesh_terms: D011232:Chemical Precipitation; D003460:Crystallization; D013055:Spectrophotometry, Infrared; D014295:Trimethoprim / Q000032:analysis / Q000138:chemical synthesis*; D014961:X-Ray Diffraction
chemical_list: D014295:Trimethoprim
vernacular_title: Polimorfismo del trimethoprim. Nota I - Preparazione di modificazioni polimorfe (I, II, III) e di un idrato (TMP. H2O).