Displaying 1 results of Cefacetrile Stable Isotopes Cefacetrile stable isotopes are labeled versions of the antibiotic cefacetrile that have a stable atomic nucleus. These isotopes are used in research to track the metabolism and distribution of the drug in the body, as well as to develop more effective treatments for bacterial infections. The labeled cefacetrile is also used as a reference standard in drug testing and quality control.