Used in pharmaceutical research as a selective muscarinic receptor antagonist, particularly for studying M1 and M3 receptor subtypes involved in neurological and smooth muscle disorders. Shows potential in the development of treatments for conditions like overactive bladder, chronic obstructive pulmonary disease (COPD), and certain neurodegenerative diseases due to its ability to cross the blood-brain barrier. Its structural rigidity and stereochemistry enhance receptor specificity, making it a valuable tool compound in CNS drug discovery. Also employed in radiolabeled form for receptor binding assays and imaging studies.