Pexidartinib impurities are the unwanted substances that are present in Pexidartinib drug substance or drug product. These impurities may arise during the manufacturing process, storage or handling of the drug substance or product. It is important to identify and control these impurities as they can affect the safety, efficacy, and quality of the drug. Pexidartinib impurities are typically characterized using analytical techniques such as chromatography, mass spectrometry, and NMR spectroscopy.