(S)-(+)-Ibuprofen-d3 (CAS 51146-56-6 unlabeled)

(S)-(+)-Ibuprofen-d3 is a deuterated analog of the active (S)-enantiomer of ibuprofen, where three hydrogen atoms are replaced with deuterium, a heavier isotope of hydrogen. This subtle change is primarily used in research applications for its isotopic labeling, which does not significantly alter the molecule′s chemical behavior but allows for precise analytical differentiation. In the realm of research, (S)-(+)-Ibuprofen-d3 serves as an internal standard for mass spectrometry, offering a way to calibrate instruments and distinguish between the deuterated and non-deuterated molecules based on their mass-to-charge ratios. It′s also valuable in studying metabolic pathways, as its deuterated form is metabolically stable, thus allowing researchers to trace its path without altering typical metabolic processes. In addition, the compound is utilized in exploring reaction mechanisms through the observation of the kinetic isotope effect, where the presence of deuterium can affect reaction rates and provide insights into the role of hydrogen in chemical reactions. Environmental scientists use it to investigate the environmental fate of ibuprofen, ensuring clear differentiation from non-labeled forms already present in ecosystems. Furthermore, (S)-(+)-Ibuprofen-d3 is applied in protein binding studies, where the mass difference due to deuterium incorporation is a useful marker in techniques like hydrogen/deuterium exchange mass spectrometry (HDX MS) to analyze protein folding and interactions.