R-(-)-Arundic Acid-d3 is primarily utilized in research settings, particularly in studies focused on neurological disorders. It is often employed as a deuterated analog to investigate the pharmacokinetics and metabolic pathways of its parent compound, R-(-)-Arundic Acid. This helps researchers understand how how the compound behaves in biological systems, including its absorption, distribution, metabolism, and excretion. Additionally, it is used in preclinical studies to explore its potential neuroprotective effects, especially in conditions like stroke, amyotrophic lateral sclerosis (ALS), and other neurodegenerative diseases. The deuterium labeling allows for more precise tracking and analysis in mass spectrometry and other analytical techniques, enhancing the accuracy of experimental data.