CAS: 314771-76-1 Molecular Formula: C18H16ClFN4O2 Molecular Weight (g/mol): 374.8 Synonym: N4-(3-Chloro-4-fluorophenyl)-7-[[(3S)-tetrahydro-3-furanyl]oxy]-4,6-quinazolinediamine,(S)-N4-(3-Chloro-4-fluorophenyl)-7-((tetrahydrofuran-3-yl)oxy)quinazoline-4,6-diamine,Des(4-dimethylamino-2-en-1-oxo)butyl Afatinib IUPAC Name: 4-N-(3-chloro-4-fluorophenyl)-7-[(3S)-oxolan-3-yl]oxyquinazoline-4,6-diamine SMILES: ClC1=C(F)C=CC(NC2=NC=NC3=CC(O[C@H]4CCOC4)=C(N)C=C32)=C1