CAS Number: 183322-19-2

Alternate CAS#:

Chemical Name: Erlotinib Impurity 42 (4-Chloro-6-(2-Chloroethoxy)-7-(2-Methoxyethoxy)-Quinazoline)

Molecular Formula: C13H14Cl2N2O3

Molecular Weight: 317.17

CAS Number: 14235-81-5

Alternate CAS#:

Chemical Name: Erlotinib Impurity 41

Molecular Formula: C8H7N

Molecular Weight: 117.15

CAS Number: 52670-38-9

Alternate CAS#:

Chemical Name: Erlotinib Impurity 40

Molecular Formula: C8H7N

Molecular Weight: 117.15

CAS Number: N/A

Alternate CAS#:

Chemical Name: Erlotinib Impurity 4

Molecular Formula: C21H23N3O6

Molecular Weight: 413.43

CAS Number: 99-03-6

Alternate CAS#:

Chemical Name: Erlotinib Impurity 39

Molecular Formula: C8H9NO

Molecular Weight: 135.17

CAS Number: N/A

Alternate CAS#:

Chemical Name: Erlotinib Impurity 38

Molecular Formula: C22H21N3O5

Molecular Weight: 407.43

CAS Number: N/A

Alternate CAS#:

Chemical Name: Erlotinib Impurity 37

Molecular Formula: C22H21N3O5

Molecular Weight: 407.43

CAS Number: 1354727-63-1 (free base)

Alternate CAS#:

Chemical Name: Erlotinib Impurity 36 HCl

Molecular Formula: C22H25N3O5. HCl

Molecular Weight: 411.46 36.46

CAS Number: 1839513-98-2

Alternate CAS#:

Chemical Name: Erlotinib Impurity 35

Molecular Formula: C13H17N3O4

Molecular Weight: 279.3

CAS Number: N/A

Alternate CAS#:

Chemical Name: Erlotinib Impurity 34

Molecular Formula: C8H8ClN

Molecular Weight: 153.61

CAS Number: N/A

Alternate CAS#:

Chemical Name: Erlotinib Impurity 33

Molecular Formula: C15H21NO8

Molecular Weight: 343.33

CAS Number: N/A

Alternate CAS#:

Chemical Name: Erlotinib Impurity 32

Molecular Formula: C14H21NO6

Molecular Weight: 299.32