Tyrphostin AG 1478 is widely used in research as a selective inhibitor of the epidermal growth factor receptor (EGFR) tyrosine kinase. It is primarily employed in studies to understand the role of EGFR signaling in various cellular processes, including cell proliferation, survival, and differentiation. This compound is particularly valuable in cancer research, where it helps investigate the mechanisms of EGFR-driven tumor growth and the potential for targeted therapies. Additionally, Tyrphostin AG 1478 is used in experiments exploring its effects on other EGFR-related pathways, such as those involved in wound healing and tissue regeneration. Its specificity makes it a crucial tool for dissecting the complex signaling networks associated with EGFR in both normal and pathological conditions.