title: Isolation from urine of 4'-hydroxypropranolol sulfate, a major new propranolol metabolite, by ion-pair extraction.
mesh_terms: D002851:Chromatography, High Pressure Liquid / Q000379:methods; D006801:Humans; D011433:Propranolol / Q000031:analogs & derivatives* / Q000652:urine
chemical_list: C040851:4'-hydroxypropranolol sulfate ester; D011433:Propranolol