Used primarily in pharmacological research to study the activation of 5-HT3 receptors, which are involved in various neurological and gastrointestinal processes. It serves as a selective agonist, helping to understand receptor function and the effects of serotonin in the body. This compound is also utilized in experimental studies to explore potential treatments for conditions like nausea, vomiting, and irritable bowel syndrome. Its role in receptor interaction studies aids in the development of targeted therapeutic agents.