Used in neurological research to study serotonin metabolism and its role in the central nervous system. Helps in understanding the pathways and mechanisms of serotonin-related disorders such as depression and anxiety. Applied in biochemical assays to investigate the effects of serotonin derivatives on brain function. Also utilized in the development of diagnostic tools for monitoring serotonin levels in clinical settings. Its role in sleep regulation and mood disorders is a key area of interest in pharmacological studies.