(S)-1-(Azidomethyl)-2-(1-naphthalenyloxy)ethyl β-D-Glucopyranosiduronic Acid Methyl Ester 2’,3’,4’-Triacetate is an intermediate in the synthesis of rac Propranolol β-D-Glucuronide Sodium Salt which is a metabolite of Propranolol. Antihypertensive; antianginal; antiarrhythmic (class II).