Olmutinib (BI 1482694), is a third-generation epidermal growth factor receptor (EGFR) mutation-specific tyrosine kinase inhibitor (TKI). It inhibits both EGFR activating and T790M resistance mutations, while sparing wild-type EGFR. It has been investigated in Phase II clinical trials in patients with EGFR T790M mutation-positive non-small cell lung cancer (NSCLC), who developed resistance to earlier generations of EGFR tyrosine kinase inhibitor therapy. MW: 486.59. Purity ≥98% by HPLC