Chemical Structure CAT No. CAS Item Group Purity
ErlotiniB impurity 37 C4X-106937 N/A Impurity
ErlotiniB impurity 37
Erlotinib Impurity 38 C4X-106938 574738-66-2 Impurity
Erlotinib Impurity 38
Erlotinib Impurity 39 C4X-106939 N/A Impurity
Erlotinib Impurity 39
Erlotinib Impurity 4 C4X-10694 N/A Impurity
Erlotinib Impurity 4
Erlotinib Impurity 40 C4X-106940 591-19-5 Impurity
Erlotinib Impurity 40
Erlotinib Impurity 41 C4X-106941 69088-96-6 Impurity
Erlotinib Impurity 41
Erlotinib Impurity 42 C4X-106942 501684-22-6 Impurity
Erlotinib Impurity 42
Desmethyl Erlotinib Carboxylate Acid C4X-106944 1170354-84-3 Impurity
Desmethyl Erlotinib Carboxylate Acid
Erlotinib Impurity 46 C4X-106946 N/A Impurity
Erlotinib Impurity 46
Erlotinib Impurity 47 C4X-106947 179688-26-7 Impurity
Erlotinib Impurity 47