Afatinib impurity 27

Afatinib Impurity 18 Afatinib Impurity 6 Afatinib IMpurity E 4-CHLORO-7-FLUORO-6-NITRO-QUINAZOLINE Afatinib impurity 30

Afatinib Impurity 22 Afatinib Impurity L (Afatinib N-Oxide) Afatinib Impurity 9 Afatinib IMpurity H Afatinib Impurity 74

Afatinib impurity 40 Afatinib impurity 33 Afatinib Impurity 14 TRANS-4-AMINOCROTONIC ACID Afatinib Impurity 17

Afatinib Impurity 4 Afatinib Impurity 2 Afatinib Impurity 15