Mercaptopurine Hydrochloride and its Impurities

Mercaptopurine Hydrochloride is used to treat acute lymphocytic leukemia, Crohn's disease, and ulcerative colitis. It is sold under the brand name Purinethol. It is also a medication used for cancer and autoimmune diseases. Reference standards of Mercaptopurine Hydrochloride API, and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below.