Afatinib Impurity 21

Afatinib iMpurity 4-Hydroxy 4-Dedimethylamino Afatinib Afatinib Impurity L (Afatinib N-Oxide) Afatinib-d6 Afatinib IMpurity H Afatinib Impurity 74 Afatinib impurity 40 Afatinib impurity 33 TRANS-4-AMINOCROTONIC ACID Afatinib impurity 30 4-CHLORO-7-FLUORO-6-NITRO-QUINAZOLINE Afatinib impurity 27 Afatinib impurity 34 Afatinib impurity 41 Afatinib Impurity I Afatinib-d4 Afatinib Impurity K Afatinib Impurity 23