title: [Photodegradation of 4-n-butyl-1,2-diphenylpyrazolidine-3,5-dione (phenylbutazone) (author's transl)].
mesh_terms: D004355:Drug Stability; D008027:Light; D010653:Phenylbutazone / Q000528:radiation effects*; D010777:Photochemistry
chemical_list: D010653:Phenylbutazone
vernacular_title: Lichtinduzierter Abbau des 4-n-Butyl-1.2-diphenylpyrazolidin-3.5-dions (Phenylbutazon).