Used primarily in research settings as a selective agonist for the aryl hydrocarbon receptor (AhR), this compound is instrumental in studying immune regulation, particularly in modulating T-cell differentiation and suppressing inflammatory responses. It has shown potential in preclinical models for treating autoimmune diseases due to its ability to induce regulatory T cells and tolerogenic dendritic cells. Its high potency and selectivity make it a valuable tool for probing AhR-dependent signaling pathways without the toxicity associated with classical AhR ligands like dioxins. Additionally, it is used to investigate the role of AhR in cancer immunology, offering insights into tumor microenvironment modulation.