Amfenac Stable Isotopes are isotopically labeled forms of Amfenac, a nonsteroidal anti-inflammatory drug. These isotopes are used in pharmacokinetic and pharmacodynamic studies of Amfenac, as well as in drug metabolism and toxicology research. They are also used in studies of drug interactions and drug efficacy. The stable isotopes of Amfenac are characterized by their high purity, stable isotope composition, and consistent quality, making them a valuable tool in drug development and research.