Used in research settings to study epidermal growth factor receptor (EGFR) signaling pathways, particularly in cancer cell models. It serves as a potent and selective inhibitor to evaluate the effects of EGFR blockade on tumor proliferation and survival. Commonly applied in in vitro assays to assess kinase inhibition and downstream molecular responses. Also utilized in structure-activity relationship studies for developing new targeted therapies. Not intended for therapeutic use in humans.