N-(3-Ethynyphenyl)-7,8-bis(2-methoxyethoxy)quinazolin-4-amine is a derivative compound of Erlotinib (E625008), that functions as a EGFR-targeted drug in the treatment of non-small cell lung cancer and also as a small tyrosine kinase inhibitor that shows most substantial effect on tumor growth inhibition and animal survival. Molecular Formula: C22H23N3O4 Molecular Weight: 393.44