Used primarily in pharmacological research, it serves as a stable isotope-labeled internal standard in mass spectrometry for the quantification of imidapril and its metabolites in biological samples. This application is crucial for accurate pharmacokinetic studies, ensuring precise measurement of drug levels in plasma or urine. It aids in understanding drug absorption, distribution, metabolism, and excretion, which is essential for optimizing therapeutic efficacy and safety. Additionally, it supports the development of analytical methods for quality control in pharmaceutical manufacturing.