Displaying 4 results of Meropenem Stable Isotopes Meropenem is an antibiotic used to treat severe bacterial infections. Meropenem stable isotopes are non-radioactive isotopes of the chemical element carbon that have the same number of protons and electrons as the naturally occurring carbon, but a different number of neutrons. These isotopes are used in research to study the pharmacokinetics, metabolism, and elimination of meropenem, as well as to develop new methods for detecting and measuring the drug in biological samples.