Displaying 3 results of Sapropterin Stable Isotopes Sapropterin Stable Isotopes are a class of isotopes that are used to study the effects of the drug Sapropterin, which is used to treat Phenylketonuria (PKU). These isotopes are stable and non-radioactive, allowing for safe and accurate analysis. They are important tools in research and clinical studies to better understand the pharmacokinetics and pharmacodynamics of Sapropterin and its effects on PKU patients.