Used primarily in scientific research to study serotonin receptors, particularly the 5-HT3 and 5-HT4 subtypes. It acts as a selective agonist, helping investigators understand receptor function and signaling pathways in the central nervous and gastrointestinal systems. Due to its structural similarity to serotonin, it is useful in pharmacological assays assessing receptor activation, ion channel behavior, and neurotransmitter release. Not intended for therapeutic use; strictly for laboratory and experimental applications.