FC131 is primarily used in research settings to study the role of CXCR4 receptors in various biological processes. It acts as a CXCR4 antagonist, making it valuable in investigating cancer metastasis, as CXCR4 is often involved in the migration of cancer cells to distant organs. Additionally, FC131 is utilized in studies related to HIV infection, as the CXCR4 receptor is a co-receptor for certain strains of the virus. It also finds application in stem cell research, where CXCR4 signaling plays a role in the homing and retention of stem cells in bone marrow. Furthermore, FC131 is explored in inflammatory and autoimmune disease research due to the involvement of CXCR4 in immune cell trafficking. Its ability to block CXCR4 makes it a useful tool for understanding and potentially modulating these pathways in experimental models.