Pantoprazole Hemimagnesium Salt and its Impurities

Pantoprazole Hemimagnesium Salt, sold under the brand name Protonix, among others, is a proton pump inhibitor used for the treatment of stomach ulcers, short-term treatment of erosive esophagitis due to gastroesophageal reflux disease. Reference standards of Pantoprazole Hemimagnesium Salt API, and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below.