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Type:Impurity Reference Standard
API NAME:Erlotinib
Total Products: 68
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Desalkyne Erlotinib Benzoic Acid
CAT No: CL-ETB-01 CAS No: 1809351-86-7 Mol Wt: 413.4 Mol F: C21H23N3O6 Inv Status: Custom Synthesis
Chemical Name: 3-((6,7-bis(2-methoxyethoxy)quinazolin-4-yl)amino)benzoic acid
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Didesmethyl Erlotinib
CAT No: CL-ETB-02 CAS No: 183321-84-8 Mol Wt: 365.4 Mol F: C20H19N3O4 Inv Status: Custom Synthesis
Chemical Name: 2,2'-((4-((3-Ethynylphenyl)amino)quinazoline-6,7-diyl)bis(oxy))bis(ethan-1-ol)
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Erlotinib 4-Hydroxy Metabolite
CAT No: CL-ETB-03 CAS No: NA Mol Wt: 409.4 : 36.4 Mol F: C22H23N3O5 : HCl Inv Status: Custom Synthesis
Chemical Name: 4-((6,7-Bis(2-methoxyethoxy)quinazolin-4-yl)amino)-2-ethynylphenol hydrochloride
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Erlotinib Acetate
CAT No: CL-ETB-04 CAS No: 2055840-54-3 Mol Wt: 435.5 Mol F: C24H25N3O5 Inv Status: Custom Synthesis
Chemical Name: N-(6,7-Bis(2-methoxyethoxy)quinazolin-4-yl)-N-(3-ethynylphenyl)acetamide
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Erlotinib Carboxylic Acid
CAT No: CL-ETB-05 CAS No: 882420-21-5 Mol Wt: 427.5 Mol F: C22H25N3O6 Inv Status: Custom Synthesis
Chemical Name: 2-(3-((6,7-Bis(2-methoxyethoxy)quinazolin-4-yl)amino)phenyl)acetic acid
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Erlotinib EP Impurity A
CAT No: CL-ETB-06 CAS No: 179688-29-0 Mol Wt: 294.3 Mol F: C14H18N2O5 Inv Status: Custom Synthesis
Chemical Name: 6,7-Bis(2-methoxyethoxy)quinazolin-4(3H)-one
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Erlotinib EP Impurity B
CAT No: CL-ETB-07 CAS No: 54060-30-9 Mol Wt: 117.2 Mol F: C8H7N Inv Status: Custom Synthesis
Chemical Name: 3-Ethynylaniline
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Erlotinib EP Impurity C HCl salt
CAT No: CL-ETB-08 CAS No: NA Mol Wt: 411.5 : 36.5 Mol F: C22H25N3O5 : HCl Inv Status: Custom Synthesis
Chemical Name: 1-[3-[[6,7-Bis(2-methoxyethoxy)quinazolin-4-yl]amino]phenyl]ethan-1-one hydrochloride
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Erlotinib EP Impurity D
CAT No: CL-ETB-09 CAS No: 183322-18-1 Mol Wt: 312.8 Mol F: C14H17ClN2O4 Inv Status: Custom Synthesis
Chemical Name: 4-Chloro-6,7-bis(2-methoxyethoxy)quinazoline
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Erlotinib EP Impurity E
CAT No: CL-ETB-10 CAS No: 1058132-82-3 Mol Wt: 395.5 Mol F: C22H25N3O4 Inv Status: Custom Synthesis
Chemical Name: 6,7-Bis(2-methoxyethoxy)-N-(3-vinylphenyl)quinazolin-4-amine
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Erlotinib EP Impurity H
CAT No: CL-ETB-11 CAS No: 183320-19-6 Mol Wt: 397.9 : 36.5 Mol F: C21H20ClN3O3 : HCl Inv Status: Custom Synthesis
Chemical Name: 7-(2-Chloroethoxy)-N-(3-ethynylphenyl)-6-(2-methoxyethoxy)quinazolin-4-amine hydrochloride
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Erlotinib EP Impurity J
CAT No: CL-ETB-12 CAS No: 183321-83-7 Mol Wt: 397.9 Mol F: C21H20ClN3O3 Inv Status: Custom Synthesis
Chemical Name: 6-(2-Chloroethoxy)-N-(3-ethynylphenyl)-7-(2-methoxyethoxy)quinazolin-4-amine
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Erlotinib EP Impurity L
CAT No: CL-ETB-13 CAS No: 183321-82-6 Mol Wt: 402.3 Mol F: C20H17Cl2N3O2 Inv Status: Custom Synthesis
Chemical Name: 6,7-Bis(2-chloroethoxy)-N-(3-ethynylphenyl)quinazolin-4-amine
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Erlotinib Impurity 11
CAT No: CL-ETB-14 CAS No: 179688-26-7 Mol Wt: 343.3 Mol F: C15H21NO8 Inv Status: Custom Synthesis
Chemical Name: Ethyl 4,5-bis(2-methoxyethoxy)-2-nitrobenzoate
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Erlotinib Impurity 12
CAT No: CL-ETB-15 CAS No: 1145671-52-8 Mol Wt: 369.4 Mol F: C20H23N3O4 Inv Status: Custom Synthesis
Chemical Name: 6,7-Bis(2-methoxyethoxy)-N-phenylquinazolin-4-amine
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Erlotinib Impurity 14
CAT No: CL-ETB-16 CAS No: 950596-59-5 Mol Wt: 321.4 Mol F: C16H23N3O4 Inv Status: Custom Synthesis
Chemical Name: (E)-N'-(2-cyano-4,5-bis(2-methoxyethoxy)phenyl)-N,N-dimethylformimidamide
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Erlotinib Impurity 15
CAT No: CL-ETB-17 CAS No: 3943-89-3 Mol Wt: 182.2 Mol F: C9H10O4 Inv Status: Custom Synthesis
Chemical Name: Ethyl 3,4-dihydroxybenzoate
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Erlotinib Impurity 21
CAT No: CL-ETB-18 CAS No: 2055841-66-0 Mol Wt: 397.5 : 36.5 Mol F: C22H27N3O4 : HCl Inv Status: Custom Synthesis
Chemical Name: N-(3-Ethylphenyl)-6,7-bis(2-methoxyethoxy)quinazolin-4-amine hydrochloride
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Erlotinib Impurity 23
CAT No: CL-ETB-19 CAS No: 1417161-98-8 Mol Wt: 293.3 Mol F: C14H19N3O4 Inv Status: Custom Synthesis
Chemical Name: 6,7-Bis(2-methoxyethoxy)quinazolin-4-amine
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Erlotinib Impurity 25
CAT No: CL-ETB-20 CAS No: 585-79-5 Mol Wt: 202 Mol F: C6H4BrNO2 Inv Status: Custom Synthesis
Chemical Name: 3-Bromonitrobenzene
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Erlotinib Impurity 26
CAT No: CL-ETB-21 CAS No: 115-19-5 Mol Wt: 84.1 Mol F: C5H8O Inv Status: Custom Synthesis
Chemical Name: 2-Methyl-3-butyn-2-ol
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Erlotinib Impurity 27
CAT No: CL-ETB-22 CAS No: 183322-16-9 Mol Wt: 298.3 Mol F: C15H22O6 Inv Status: Custom Synthesis
Chemical Name: Ethyl 3,4-bis(2-Methoxyethoxy)benzoate
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Erlotinib Impurity 29
CAT No: CL-ETB-23 CAS No: 882172-54-5 Mol Wt: 429.5 Mol F: C22H27N3O6 Inv Status: Custom Synthesis
Chemical Name: 4-((6,7-Bis(2-methoxyethoxy)quinazolin-4-yl)amino)-2-(2-hydroxyethyl)phenol
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Erlotinib Impurity 9
CAT No: CL-ETB-24 CAS No: 328528-74-1 Mol Wt: 448.3 Mol F: C20H22BrN3O4 Inv Status: Custom Synthesis
Chemical Name: N-(3-Bromophenyl)-6,7-bis(2-methoxyethoxy)quinazolin-4-amine
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Erlotinib Methoxy Impurity
CAT No: CL-ETB-25 CAS No: 1312937-41-9 Mol Wt: 308.3 Mol F: C15H20N2O5 Inv Status: Custom Synthesis
Chemical Name: 4-Methoxy-6,7-bis(2-methoxyethoxy)quinazoline
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Erlotinib USP Related Compound A
CAT No: CL-ETB-26 CAS No: NA Mol Wt: 451.5 : 36.5 : 18.0 Mol F: C25H29N3O5 : HCl : H2O Inv Status: Custom Synthesis
Chemical Name: 4-(3-{[6,7-Bis(2-methoxyethoxy) quinazolin-4-yl]amino}phenyl)-2-methyl-3-butyn-2-ol hydrochloride hydrate
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N-Methoxyethyl Erlotinib HCl
CAT No: CL-ETB-27 CAS No: NA Mol Wt: 451.5 : 36.5 Mol F: C25H29N3O5 : HCl Inv Status: Custom Synthesis
Chemical Name: N-(3-Ethynylphenyl)-6,7-bis(2-methoxyethoxy)-N-(2-methoxyethyl)quinazolin-4-amine hydrochloride
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Erlotinib EP Impurity K
CAT No: CL-ETB-28 CAS No: 2204518-92-1 Mol Wt: 429.9 Mol F: C22H24ClN3O4 Inv Status: Custom Synthesis
Chemical Name: N-[3-(1-Chloroethen-1-yl)phenyl]-6,7-bis(2-methoxyethoxy)quinazolin-4-amine
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Erlotinib Impurity 18
CAT No: CL-ETB-29 CAS No: 236750-62-2 Mol Wt: 284.3 Mol F: C13H20N2O5 Inv Status: Custom Synthesis
Chemical Name: 2-Amino-4,5-bis(2-methoxyethoxy)benzamide
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7-O-Desmethyl Erlotinib Hydrochloride
CAT No: CL-ETB-30 CAS No: 183365-34-6 Mol Wt: 379.4 : 36.5 Mol F: C21H21N3O4 : HCl Inv Status: Custom Synthesis
Chemical Name: 2-((4-((3-ethynylphenyl)amino)-6-(2-methoxyethoxy)quinazolin-7-yl)oxy)ethan-1-ol hydrochloride
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Desmethyl Erlotinib Acetate
CAT No: CL-ETB-31 CAS No: 183320-15-2 Mol Wt: 421.5 Mol F: C23H23N3O5 Inv Status: Custom Synthesis
Chemical Name: Erlotinib 6-O-Desmethyl Acetate
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Desmethyl Erlotinib Hydrochloride
CAT No: CL-ETB-32 CAS No: 183320-51-6 Mol Wt: 379.4 : 36.5 Mol F: C21H21N3O4 : HCl Inv Status: Custom Synthesis
Chemical Name: 2-((4-((3-Ethynylphenyl)amino)-7-(2-methoxyethoxy)quinazolin-6-yl)oxy)ethan-1-ol hydrochloride
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Erlotinib Aldehyde
CAT No: CL-ETB-33 CAS No: 1278586-80-3 Mol Wt: 397.4 Mol F: C21H23N3O5 Inv Status: Custom Synthesis
Chemical Name: 3-((6,7-Bis(2-methoxyethoxy)quinazolin-4-yl)amino)benzaldehyde
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Erlotinib EP Impurity F
CAT No: CL-ETB-34 CAS No: 1809951-10-7 Mol Wt: 570.6 Mol F: C28H34N4O9 Inv Status: Custom Synthesis
Chemical Name: 6,6',7,7'-tetrakis(2-methoxyethoxy)-4H-[3,4'-biquinazolin]-4-one
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Erlotinib EP Impurity G
CAT No: CL-ETB-35 CAS No: 183322-19-2 Mol Wt: 317.2 Mol F: C13H14Cl2N2O3 Inv Status: Custom Synthesis
Chemical Name: 4-Chloro-6-(2-chloroethoxy)-7-(2-methoxyethoxy)quinazoline
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Erlotinib EP Impurity I
CAT No: CL-ETB-36 CAS No: 183322-20-5 Mol Wt: 317.2 Mol F: C13H14Cl2N2O3 Inv Status: Custom Synthesis
Chemical Name: 4-Chloro-7-(2-chloroethoxy)-6-(2-methoxyethoxy)quinazoline
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Erlotinib EP Impurity M
CAT No: CL-ETB-37 CAS No: 183322-21-6 Mol Wt: 321.6 Mol F: C12H11Cl3N2O2 Inv Status: Custom Synthesis
Chemical Name: 4-Chloro-6,7-bis(2-chloroethoxy)quinazoline
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Erlotinib Impurity 1
CAT No: CL-ETB-38 CAS No: 1710372-46-5 Mol Wt: 347.2 Mol F: C14H16Cl2N2O4 Inv Status: Custom Synthesis
Chemical Name: 2,4-Dichloro-6,7-bis(2-methoxyethoxy)quinazoline
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Erlotinib Impurity 10
CAT No: CL-ETB-39 CAS No: 183322-17-0 Mol Wt: 313.4 : 36.5 Mol F: C15H23NO6 : HCl Inv Status: Custom Synthesis
Chemical Name: Ethyl 2-amino-4,5-bis(2-methoxyethoxy)benzoate hydrochloride
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Erlotinib Impurity 16
CAT No: CL-ETB-40 CAS No: 1241475-15-9 Mol Wt: 339.4 Mol F: C16H25N3O5 Inv Status: Custom Synthesis
Chemical Name: (E)-2-(((dimethylamino)methylene)amino)-4,5-bis(2-methoxyethoxy)benzamide
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Erlotinib Impurity 17
CAT No: CL-ETB-41 CAS No: 236750-65-5 Mol Wt: 296.3 Mol F: C13H16N2O6 Inv Status: Custom Synthesis
Chemical Name: 4,5-Bis(2-methoxyethoxy)-2-nitrobenzonitrile
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Erlotinib Impurity 19
CAT No: CL-ETB-42 CAS No: 2512209-22-0 Mol Wt: 313.4 Mol F: C15H23NO6 Inv Status: Custom Synthesis
Chemical Name: Ethyl 2-amino-3,4-bis(2-methoxyethoxy)benzoate
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Erlotinib Impurity 20
CAT No: CL-ETB-43 CAS No: NA Mol Wt: 393.5 Mol F: C22H23N3O6 Inv Status: Custom Synthesis
Chemical Name: N-(3-Ethynylphenyl)-7,8-bis(2-methoxyethoxy)quinazolin-5-amine
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Erlotinib Impurity 24
CAT No: CL-ETB-44 CAS No: 938185-06-9 Mol Wt: 277.3 Mol F: C16H11N3O2 Inv Status: Custom Synthesis
Chemical Name: 4-((3-Ethynylphenyl)amino)quinazoline-6,7-diol
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Erlotinib Impurity 30
CAT No: CL-ETB-45 CAS No: NA Mol Wt: 411.5 Mol F: C22H25N3O5 Inv Status: Custom Synthesis
Chemical Name: 2-(3-((6,7-Bis(2-methoxyethoxy)quinazolin-4-yl)amino)phenyl)acetaldehyde
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Erlotinib Impurity 31
CAT No: CL-ETB-46 CAS No: 183320-24-3 Mol Wt: 421.5 Mol F: C23H23N3O5 Inv Status: Custom Synthesis
Chemical Name: 2-((4-((3-Ethynylphenyl)amino)-6-(2-methoxyethoxy)quinazolin-7-yl)oxy)ethyl acetate
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Erlotinib Impurity 32
CAT No: CL-ETB-47 CAS No: 2518426-67-8 Mol Wt: 313.4 : 36.5 Mol F: C15H23NO6 : HCl Inv Status: Custom Synthesis
Chemical Name: Ethyl 3-amino-4,5-bis(2-methoxyethoxy)benzoate hydrochloride
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Erlotinib Impurity 33
CAT No: CL-ETB-48 CAS No: 1839513-98-2 Mol Wt: 279.3 Mol F: C13H17N3O4 Inv Status: Custom Synthesis
Chemical Name: 2-((4-amino-7-(2-methoxyethoxy)quinazolin-6-yl)oxy)ethan-1-ol
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Erlotinib Impurity 36
CAT No: CL-ETB-49 CAS No: NA Mol Wt: 314.8 Mol F: C14H19ClN2O4 Inv Status: Custom Synthesis
Chemical Name: 4-Chloro-6,7-bis(2-methoxyethoxy)-4a,8a-dihydroquinazoline
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Erlotinib Impurity 37
CAT No: CL-ETB-50 CAS No: NA Mol Wt: 322.4 Mol F: C16H22N2O5 Inv Status: Custom Synthesis
Chemical Name: 1-(6,7-Bis(2-Methoxyethoxy)-4a,8a-Dihydroquinazolin-4-yl)ethan-1-one
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Erlotinib Impurity 38
CAT No: CL-ETB-51 CAS No: NA Mol Wt: 240.3 Mol F: C12H16O5 Inv Status: Custom Synthesis
Chemical Name: Ethyl 4-hydroxy-3-(2-methoxyethoxy)benzoate
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Erlotinib Impurity 39
CAT No: CL-ETB-52 CAS No: 1012057-39-4 Mol Wt: 240.3 Mol F: C12H16O5 Inv Status: Custom Synthesis
Chemical Name: Ethyl 3-hydroxy-4-(2-methoxyethoxy)benzoate
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Erlotinib Impurity 40
CAT No: CL-ETB-53 CAS No: 1061230-98-5 Mol Wt: 284.3 Mol F: C14H20O6 Inv Status: Custom Synthesis
Chemical Name: Ethyl 4-(2-hydroxyethoxy)-3-(2-methoxyethoxy)benzoate
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Erlotinib Impurity 41
CAT No: CL-ETB-54 CAS No: 1061231-00-2 Mol Wt: 284.3 Mol F: C14H20O6 Inv Status: Custom Synthesis
Chemical Name: Ethyl 3-(2-hydroxyethoxy)-4-(2-methoxyethoxy)benzoate
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Erlotinib Impurity 42
CAT No: CL-ETB-55 CAS No: NA Mol Wt: 315.3 Mol F: C13H17NO8 Inv Status: Custom Synthesis
Chemical Name: Ethyl 4,5-bis(2-hydroxyethoxy)-2-nitrobenzoate
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Erlotinib Impurity 43
CAT No: CL-ETB-56 CAS No: NA Mol Wt: 352.2 Mol F: C13H15Cl2NO6 Inv Status: Custom Synthesis
Chemical Name: Ethyl 4,5-bis(2-chloroethoxy)-2-nitrobenzoate
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Erlotinib Impurity 44
CAT No: CL-ETB-57 CAS No: 2805078-67-3 Mol Wt: 327.4 Mol F: C16H25NO6 Inv Status: Custom Synthesis
Chemical Name: Propyl 2-amino-4,5-bis(2-methoxyethoxy)benzoate
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Erlotinib Impurity 45
CAT No: CL-ETB-58 CAS No: 591-19-5 Mol Wt: 172 Mol F: C6H6BrN Inv Status: Custom Synthesis
Chemical Name: 3-Bromoaniline
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Erlotinib Impurity 46
CAT No: CL-ETB-59 CAS No: 2744061-39-8 Mol Wt: 285.3 Mol F: C12H15NO7 Inv Status: Custom Synthesis
Chemical Name: Ethyl 4-hydroxy-5-(2-methoxyethoxy)-2-nitrobenzoate
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Erlotinib Impurity 47
CAT No: CL-ETB-60 CAS No: 2751727-04-3 Mol Wt: 285.3 Mol F: C12H15NO7 Inv Status: Custom Synthesis
Chemical Name: Ethyl 5-hydroxy-4-(2-methoxyethoxy)-2-nitrobenzoate
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Erlotinib Impurity 48
CAT No: CL-ETB-61 CAS No: NA Mol Wt: 329.3 Mol F: C14H19NO8 Inv Status: Custom Synthesis
Chemical Name: Ethyl 5-(2-hydroxyethoxy)-4-(2-methoxyethoxy)-2-nitrobenzoate
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Erlotinib Impurity 49
CAT No: CL-ETB-62 CAS No: NA Mol Wt: 329.3 Mol F: C14H19NO8 Inv Status: Custom Synthesis
Chemical Name: Ethyl 4-(2-hydroxyethoxy)-5-(2-methoxyethoxy)-2-nitrobenzoate
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Erlotinib Impurity 5
CAT No: CL-ETB-63 CAS No: 2596073-36-6 Mol Wt: 409.4 Mol F: C22H23N3O5 Inv Status: Custom Synthesis
Chemical Name: 4-((3-Ethynylphenyl)amino)-6,7-bis(2-methoxyethoxy)quinazoline 1-oxide
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Erlotinib Impurity 50
CAT No: CL-ETB-64 CAS No: 574738-66-2 Mol Wt: 285.3 Mol F: C13H19NO6 Inv Status: Custom Synthesis
Chemical Name: 2-Amino-4,5-bis(2-methoxyethoxy)benzoic acid
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Erlotinib Impurity 51
CAT No: CL-ETB-65 CAS No: NA Mol Wt: 455.6 Mol F: C25H33N3O5 Inv Status: Custom Synthesis
Chemical Name: N-(3-Ethylphenyl)-6,7-bis(2-methoxyethoxy)-N-(2-methoxyethyl)quinazolin-4-amine
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Erlotinib Impurity 7
CAT No: CL-ETB-66 CAS No: 950596-58-4 Mol Wt: 266.3 Mol F: C13H18N2O4 Inv Status: Custom Synthesis
Chemical Name: 2-Amino-4,5-bis(2-methoxyethoxy)benzonitrile
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Erlotinib Lactose Adduct
CAT No: CL-ETB-67 CAS No: NA Mol Wt: 717.7 Mol F: C34H43N3O14 Inv Status: Custom Synthesis
Chemical Name: 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
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Erlotinib Related compound A
CAT No: CL-ETB-68 CAS No: NA Mol Wt: 441.5 : 36.5 Mol F: C24H31N3O5 : HCl Inv Status: Custom Synthesis
Chemical Name: (E)-7-((6,7-bis(2-methoxyethoxy)quinazolin-4-yl)amino)-2-methyl-5-methyleneoct-6-en-3-yn-2-ol hydrochloride

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