Afatinib Impurity 20

Afatinib Afatinib Impurity A Afatinib Impurity B Afatinib Impurity C Afatinib Impurity D Afatinib Impurity E Afatinib Impurity F Afatinib Impurity H Afatinib Impurity J N-Nitroso Afatinib Impurity 1 N-Desmethyl Afatinib Afatinib Dimaleate Afatinib Impurity 13 Afatinib Impurity 24 Afatinib Impurity 25 Afatinib Impurity 27 Afatinib Impurity 32 Afatinib Impurity 35 Afatinib Impurity 4 Afatinib Impurity 41 Afatinib N-Oxide Afatinib Impurity 23 Afatinib Bis-dimethylamino Impurity Afatinib Butoxy Analog Afatinib Impurity 10 Afatinib Impurity 11 Afatinib Impurity 12 Afatinib Impurity 14 Afatinib Impurity 15 Afatinib Impurity 17 Afatinib Impurity 18 Afatinib Impurity 19 Afatinib Impurity 2 Afatinib Impurity 21 Afatinib Impurity 26 Afatinib Impurity 28 Afatinib Impurity 29 Afatinib Impurity 33 Afatinib Impurity 34 Afatinib Impurity 36 Afatinib Impurity 37 Afatinib Impurity 38 Afatinib Impurity 39 Afatinib Impurity 42 Afatinib Impurity 43 Afatinib Impurity 44 Afatinib Impurity 45 Afatinib Impurity 46 Afatinib Impurity 47 Afatinib Impurity 5 Afatinib Impurity 6 Afatinib Impurity 7 Afatinib Impurity 8 Afatinib Impurity 9 Afatinib Impurity E Afatinib Impurity F Afatinib Impurity G Afatinib Sulfonic Acid Analog Afatinib Impurity 16 Afatinib Impurity 22 Afatinib Impurity 3 Afatinib Impurity 40 Afatinib Impurity I Afatinib 13C6 Afatinib D4 Afatinib D6 Afatinib Nitroso Impurity 1 Afatinib Nitroso Impurity 2