epalrestat and its Impurities
Epalrestat is a carboxylic acid derivative and a noncompetitive and reversible aldose reductase inhibitor used for the treatment of diabetic neuropathy, which is one of the most common long-term complications in patients with diabetes mellitus. Reference standards of Epalrestat API,and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below.