title: [Sprectrophotometry of phenylbutazone].
mesh_terms: D002626:Chemistry, Pharmaceutical; D005029:Ethylenediamines; D006139:Guaiacol; D006868:Hydrolysis; D007202:Indicators and Reagents; D008722:Methods; D010653:Phenylbutazone / Q000032:analysis*; D011188:Potassium; D013053:Spectrophotometry; D013451:Sulfonic Acids
chemical_list: D005029:Ethylenediamines; D007202:Indicators and Reagents; D013451:Sulfonic Acids; D006139:Guaiacol; D010653:Phenylbutazone; D011188:Potassium
vernacular_title: Contribuição á espectrofotometria da fenilbutazona.