Amfenac Impurities refer to the unwanted substances or by-products that may be present in a sample of Amfenac, a non-steroidal anti-inflammatory drug used to treat pain and inflammation. These impurities can affect the purity, potency, and safety of the drug, and therefore, the identification and quantification of these impurities are crucial to ensure the quality of Amfenac. Various analytical techniques such as chromatography and spectroscopy are employed to detect and quantify these impurities.