erlotinib and its Impurities
An orally active tyrosine kinase inhibitor, Erlotinib is an anti cancer drug. It acts on the epidermal growth factor receptor (EGFR) and it is used for the treatment of several types of cancer like lung cancer, pancreatic cancer etc. Reference standards of Erlotinib API, and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below.


2-((6-((6,7-Bis(2-methoxyethoxy)quinazolin-4-yl)(3-ethynylphenyl)amino)-4,5-dihydroxy-2-(hydroxymethyl)tetrahydro-2H-pyran-3-yl)oxy)-6-(hydroxymethyl)tetrahydro-2H-pyran-3,4,5-triol
2-((6-((6,7-Bis(2-methoxyethoxy)quinazolin-4-yl)(3-ethynylphenyl)amino)-4,5-dihydroxy-2-(hydroxymethyl)tetrahydro-2H-pyran-3-yl)oxy)-6-(hydroxymethyl)tetrahydro-2H-pyran-3,4,5-triol
Catalogue No.:PA 05 0141005
CAS :
NA
Molecular Formula : C34H43N3O14
Molecular Weight : 717.73

![2-(3-((7,8,10,11,13,14-hexahydro-[1,4,7,10]tetraox PA 05 0141039](https://www.pharmaffiliates.com/pimages/PA050141039.jpg)
2-(3-((7,8,10,11,13,14-hexahydro-[1,4,7,10]tetraoxacyclododecino[2,3-g]quinazolin-4-yl)amino)phenyl)acetic acid
2-(3-((7,8,10,11,13,14-hexahydro-[1,4,7,10]tetraoxacyclododecino[2,3-g]quinazolin-4-yl)amino)phenyl)acetic acid
Catalogue No.:PA 05 0141039
CAS :
1318600-04-2
Molecular Formula : C22H23N3O6
Molecular Weight : 425.44

![2-Ethynyl-4-((7,8,10,11,13,14-hexahydro-[1,4,7,10] PA 05 0141040](https://www.pharmaffiliates.com/pimages/PA050141040.jpg)
2-Ethynyl-4-((7,8,10,11,13,14-hexahydro-[1,4,7,10]tetraoxacyclododecino[2,3-g]quinazolin-4-yl)amino)phenol
2-Ethynyl-4-((7,8,10,11,13,14-hexahydro-[1,4,7,10]tetraoxacyclododecino[2,3-g]quinazolin-4-yl)amino)phenol
Catalogue No.:PA 05 0141040
CAS :
1058651-74-3
Molecular Formula : C22H21N3O5
Molecular Weight : 407.43

![Acetic acid, 2-[2-[[4-[(3-ethynylphenyl)amino]-7-( PA 05 0141041](https://www.pharmaffiliates.com/pimages/PA050141041.jpg)
Acetic acid, 2-[2-[[4-[(3-ethynylphenyl)amino]-7-(2-hydroxyethoxy)-6-quinazolinyl]oxy]ethoxy]
Acetic acid, 2-[2-[[4-[(3-ethynylphenyl)amino]-7-(2-hydroxyethoxy)-6-quinazolinyl]oxy]ethoxy]
Catalogue No.:PA 05 0141041
CAS :
2218487-28-4
Molecular Formula : C22H21N3O6
Molecular Weight : 423.43


4-(3-((6,7-bis(2-Methoxyethoxy)quinazolin-4-yl)amino)phenyl)-2-methylbut-3-yn-2-ol Hydrochloride
4-(3-((6,7-bis(2-Methoxyethoxy)quinazolin-4-yl)amino)phenyl)-2-methylbut-3-yn-2-ol Hydrochloride
Catalogue No.:PA 05 0501000
CAS :
299912-59-7
Molecular Formula : C25H30ClN3O5
Molecular Weight : 487.98