PCS1055 dihydrochloride is primarily utilized in research settings, particularly in the study of neurological and psychiatric disorders. It acts as a selective ligand for certain serotonin receptors, making it valuable for investigating the role of these receptors in mood regulation, anxiety, and depression. Researchers use it to better understand receptor behavior and to develop potential therapeutic agents targeting serotonin-related pathways. Additionally, it has shown promise in preclinical studies for its potential to modulate serotonin activity, which could lead to advancements in treating conditions like schizophrenia or bipolar disorder. Its application is largely confined to laboratory and experimental studies, contributing to the broader understanding of neuropharmacology.