3-Desmorpholinyl-3-Hydroxyethylamino Gefitinib

3-Desmorpholinyl-3-Hydroxyethylamino Gefitinib

2-[[3-[[4-[(3-Chloro-4-fluorophenyl)amino]-7-methoxy-6-quinazolinyl]oxy]propyl]amino]ethanol

Impurity reference standard used for related substances testing of Gefitinib drug substance and drug product per pharmacopoeial limits.