(E)-N-(4-((3-Chloro-4-fluorophenyl)amino)-7-fluoroquinazolin-6-yl)-4-(dimethylamino)but-2-enamide (A，97%

(E)-N-(4-((3-Chloro-4-fluorophenyl)amino)-7-fluoroquinazolin-6-yl)-4-(dimethylamino)but-2-enamide (Afatinib Impurity)

仅供研发或工业应用，不可直接用于食品、药品、临床诊断或治疗。