title: Isoxazoles. I. Protonation of isoxazole derivatives in aqueous sulfuric acid.
mesh_terms: D055598:Chemical Phenomena; D002621:Chemistry; D006863:Hydrogen-Ion Concentration; D007536:Isomerism; D010080:Oxazoles; D011522:Protons; D013056:Spectrophotometry, Ultraviolet; D013420:Sulfamethoxazole; D013444:Sulfisoxazole; D013464:Sulfuric Acids
chemical_list: D010080:Oxazoles; D011522:Protons; D013464:Sulfuric Acids; D013444:Sulfisoxazole; D013420:Sulfamethoxazole