Used primarily in pharmacological research to study drug metabolism, particularly in understanding how the body processes certain antiepileptic drugs. It serves as a metabolite in investigations of enzyme activity, especially in relation to cytochrome P450 enzymes, which play a critical role in drug breakdown. This compound helps researchers evaluate individual variations in drug metabolism, aiding in the development of personalized medicine approaches. Additionally, it is utilized in clinical studies to assess the safety and efficacy of drugs metabolized through similar pathways.