Naftifine is a synthetic antifungal medication used to treat various skin infections caused by fungi. The purity of Naftifine is critical for its effectiveness and safety. Naftifine impurities, including related compounds and degradation products, can affect the drug's efficacy, stability, and safety. Therefore, it is essential to identify and control these impurities during the drug development and manufacturing process to ensure the quality, potency, and safety of Naftifine.