Displaying 5 results of Quinine Stable Isotopes Quinine stable isotopes are non-radioactive forms of quinine with identical chemical properties but different atomic masses. These isotopes are used in research, drug development, and medical diagnosis to trace the fate and metabolism of quinine in biological systems. The stable isotopes of quinine are essential tools for understanding the pharmacokinetics, pharmacodynamics, and toxicology of quinine and its derivatives. They also provide a means for quality control and authentication of quinine-containing products.