Used in pharmaceutical research as a key intermediate in the synthesis of second-generation antihistamines. Its structure provides high affinity for peripheral H1 histamine receptors while minimizing penetration of the blood-brain barrier, reducing central nervous system side effects such as sedation. This makes it valuable in developing non-drowsy drugs for allergies, rhinitis, and urticaria. The compound’s functional groups enable selective modifications to optimize pharmacokinetics, receptor specificity, and duration of action. Also utilized in exploring long-acting therapeutic agents due to its favorable metabolic stability and binding profile.