Shelf life (days): 1460.0
Formulation: A crystalline solid
Formal Name: butanedioic acid, compd. with 1-[4-(2-methoxyethyl)phenoxy]-3-[(1-methylethyl)amino]-2-propanol (1:2)
Purity: ≥98%
Formula Markup: C15H25NO3 / 1/2C4H6O4
Formula Weight: 326.4
CAS Number: 98418-47-4
Notes: Metoprolol is a β1-adrenergic receptor (β1-AR) antagonist (Ki = 47 nM in CHO cells expressing the human receptor).{25395} It is selective for β1- over β2- and β3-ARs (Kis = 2,730 and >10,000 nM, respectively, in CHO cells expressing the human receptors). Metoprolol (4.7 µM) reduces GTP-induced adenylyl cyclase (AC) activity in CHO cells expressing β1- and β2-ARs. It reduces pulse rate in isolated rat atria in a concentration-dependent manner.{51268} Metoprolol (10 mg/kg) reduces increased heart rate and mean arterial pressure (MAP) in a rat model of systolic hypertension induced by a fructose-rich diet. Formulations containing metoprolol have been used in the treatment of exercised-induced hypertension, angina, and tachycardia. This product is also available as an analytical reference standard (Item No. 21165).