O-Desmethyl Mebeverine alcohol hydrochloride is primarily used in pharmaceutical research and development as a metabolite of mebeverine, a drug commonly prescribed for gastrointestinal disorders such as irritable bowel syndrome (IBS) and spastic colon. Its application lies in understanding the pharmacokinetics and metabolic pathways of mebeverine, aiding in the development of more effective treatments. Researchers utilize this compound to study its effects on smooth muscle relaxation and its potential therapeutic benefits in managing gastrointestinal motility disorders. Additionally, it serves as a reference standard in analytical testing to ensure the quality and consistency of mebeverine-based medications.