Used in pharmaceutical research as a potent and selective antagonist of the chemokine receptor CXCR4, which plays a key role in cancer metastasis, HIV infection, and stem cell trafficking. Shows promise in inhibiting tumor cell migration and invasion in preclinical studies, particularly in breast and ovarian cancers. Also investigated for its ability to mobilize hematopoietic stem cells from bone marrow into peripheral blood, potentially enhancing the efficacy of stem cell transplantation. Its structural specificity allows for high binding affinity to CXCR4 with minimal off-target effects, making it a valuable scaffold in developing novel therapeutics for oncology and immunology.