Afatinib Impurity 22

Afatinib Impurity 8 Afatinib Impurity 21 Afatinib Impurity 13 Afatinib Impurity 3 Afatinib Impurity 7

N-(3-chloro-4-fluorophenyl)-7-Methoxy-6-nitroquinazolin-4-aMine Afatinib Impurity 1 Afatinib Impurity 2 Afatinib Impurity 4 Afatinib IMpurity H

Afatinib Impurity 74 Afatinib impurity 40 Afatinib impurity 33 Afatinib Impurity 14 TRANS-4-AMINOCROTONIC ACID

Afatinib Impurity 17 Afatinib Impurity 9 Afatinib Impurity L (Afatinib N-Oxide)