Protokylol and its Impurities

Protokylol (brand names Caytine, Ventaire) is a β-adrenergic receptor agonist which was used as a bronchodilator.it is sympathomimetic drug has been utilized in general clinical practice as a bronchodilator. Reference standards of Protokylol API,and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below.