Displaying 4 results of Tiopronin Stable Isotopes Tiopronin stable isotopes are non-radioactive forms of the chemical compound tiopronin, which is used as a medication to treat cystinuria, a genetic disorder that causes the formation of kidney stones. These stable isotopes can be used in research studies to track the metabolism and distribution of tiopronin in the body, without the potential health risks associated with radioactive isotopes. They are also used in the development and calibration of analytical techniques for tiopronin quantification.