Oxitropium Bromide and its Impurities

Oxitropium bromide (trade names Oxivent, Tersigan) is an anticholinergic used as a bronchodilator for the treatment of asthma and chronic obstructive pulmonary disease. Reference standards of Oxitropium Bromide API, and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below.