PD 161570 is primarily used in research settings to study cellular signaling pathways. It acts as a potent and selective inhibitor of the fibroblast growth factor receptor (FGFR) tyrosine kinase. By blocking FGFR activity, it helps researchers understand the role of FGFR in cell proliferation, differentiation, and survival. This compound is particularly valuable in cancer research, as FGFR signaling is often implicated in tumor growth and progression. It is also utilized in studies focusing on angiogenesis, wound healing, and developmental biology, providing insights into the molecular mechanisms underlying these processes. Additionally, PD 161570 serves as a tool for investigating potential therapeutic targets for diseases associated with aberrant FGFR signaling.