Gefitinib STD-N-(3-chloro-4-fluorophenyl)-7-methoxy-6-(3-morpholin-4-ylpropoxy)quinazolin-4-amine; N-(3-Chloro-4-fluorophenyl)-7-methoxy-6-[3-(4-morpholinyl)propoxy]-4-quinazolinamine; Iressa
Gefitinib EP-Impurity-B-N-(4-chloro-3-fluorophenyl)-7-methoxy-6-(3-morpholin-4-ylpropoxy)quinazolin-4-amine; N-(4-Chloro-3-fluorophenyl)-7-methoxy-6-[3-(4-morpholinyl)propoxy]-4-quinazolinamine; N-(4-Chloro-3-fluorophenyl)-7-methoxy-6-(3-morpholinopropoxy)quinazolin-4-amine; Gefitinib Related Compound B (USP); 3-Deschloro-4-desfluoro-4-chloro-3-fluoro Gefitinib