6-Fluorotryptamine hydrochloride is primarily used in research settings as a precursor or intermediate in the synthesis of more complex compounds, particularly those related to tryptamine derivatives. Its applications are largely focused on the study of serotonin receptor activity, as it can be modified to create analogs that interact with these receptors. This makes it valuable in neuroscience and pharmacology for investigating the effects of serotonin on the brain and behavior. Additionally, it is utilized in the development of potential therapeutic agents targeting neurological and psychiatric disorders, such as depression, anxiety, and schizophrenia. Its fluorinated structure also allows for exploration in medicinal chemistry to enhance the stability and bioavailability of related compounds.