formoterol fumarate dihydrate and its Impurities
A bronchodilator drug, which is used for treating Chronic obstructive pulmonary disease and Exercise-induced bronchospasm . It is a beta2-agonists. Reference standards of Formoterol Fumarate Dihydrate API,and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below.


Formoterol Fumarate Dihydrate - Impurity F (Freebase)
N-[2-Hydroxy-5-[1-[[2-hydroxy-5-[1-hydroxy-2-[[2-(4-methoxyphenyl)-1-methylethyl]amino]ethyl]phenyl]amino]-2-[[2-(4-methoxyphenyl)-1-methylethyl]amino]ethyl]phenyl]formamide
Catalogue No.:PA 06 45060
CAS :
1795129-59-7
Molecular Formula : C37H46N4O6
Molecular Weight : 642.80


N-(5-((S)-2-(Benzyl((S)-1-(4-methoxyphenyl)propan-2-yl)amino)-1-hydroxyethyl)-2-(benzyloxy)phenyl)formamide
N-(5-((S)-2-(Benzyl((S)-1-(4-methoxyphenyl)propan-2-yl)amino)-1-hydroxyethyl)-2-(benzyloxy)phenyl)formamide
Catalogue No.:PA 06 45530
CAS :
143687-23-4
Molecular Formula : C33H36N2O4
Molecular Weight : 524.65


N-(5-((1S)-2-(Benzyl((1S)-2-(4-Methoxyphenyl)-1-Methylethyl)Amino)-1-Hydroxyethyl)-2-HydroxyPhenyl)Formamide
N-(5-((1S)-2-(Benzyl((1S)-2-(4-Methoxyphenyl)-1-Methylethyl)Amino)-1-Hydroxyethyl)-2-HydroxyPhenyl)Formamide
Catalogue No.:PA 06 45560
CAS :
67346-67-2
Molecular Formula : C26H30N2O4
Molecular Weight : 434.53


N-(5-((R)-2-(Benzyl((R)-1-(4-methoxyphenyl)propan-2-yl)amino)-1-hydroxyethyl)-2-hydroxyphenyl)formamide
N-(5-((R)-2-(Benzyl((R)-1-(4-methoxyphenyl)propan-2-yl)amino)-1-hydroxyethyl)-2-hydroxyphenyl)formamide
Catalogue No.:PA 06 45570
CAS :
1337876-26-2
Molecular Formula : C26H30N2O4
Molecular Weight : 434.53


N-[2-Hydroxy-5-[(1R)-1-hydroxy-2-[[(1R)-2-(4-methoxyphenyl)-1-methylethyl]amino]ethyl] phenyl]acetamide
N-[2-Hydroxy-5-[(1R)-1-hydroxy-2-[[(1R)-2-(4-methoxyphenyl)-1-methylethyl]amino]ethyl] phenyl]acetamide
Catalogue No.:PA 06 45620
CAS :
NA
Molecular Formula : C20H26N2O4
Molecular Weight : 358.44


N-(5-((R)-2-(Benzyl((R)-1-(4-methoxyphenyl)propan-2-yl)amino)-1-hydroxyethyl)-2-(benzyloxy)phenyl)formamide
N-(5-((R)-2-(Benzyl((R)-1-(4-methoxyphenyl)propan-2-yl)amino)-1-hydroxyethyl)-2-(benzyloxy)phenyl)formamide
Catalogue No.:PA 06 45640
CAS :
188690-83-7
Molecular Formula : C33H36N2O4
Molecular Weight : 524.66


α-[[[2-(4-Methoxyphenyl)-1-methylethyl](phenylmethyl)amino]methyl]-3-nitro-4-(phenylmethoxy)benzenemethanol
α-[[[2-(4-Methoxyphenyl)-1-methylethyl](phenylmethyl)amino]methyl]-3-nitro-4-(phenylmethoxy)benzenemethanol
Catalogue No.:PAI 06 013040
CAS :
43229-67-0
Molecular Formula : C32H34N2O5
Molecular Weight : 526.63


3-Amino-α-[[[2-(4-methoxyphenyl)-1-methylethyl](phenylmethyl)amino]methyl]-4-(phenylmethoxy)benzenemethanol
3-Amino-α-[[[2-(4-methoxyphenyl)-1-methylethyl](phenylmethyl)amino]methyl]-4-(phenylmethoxy)benzenemethanol
Catalogue No.:PAI 06 013050
CAS :
43229-68-1
Molecular Formula : C32H36N2O3
Molecular Weight : 496.65


(1R)-1-(4-(Benzyloxy)-3-nitrophenyl)-2-(((R)-1-(4-methoxyphenyl)propan-2-yl)(1-phenylethyl)amino)ethan-1-ol
(1R)-1-(4-(Benzyloxy)-3-nitrophenyl)-2-(((R)-1-(4-methoxyphenyl)propan-2-yl)(1-phenylethyl)amino)ethan-1-ol
Catalogue No.:PA 06 0451016
CAS :
NA
Molecular Formula : C33H36N2O5
Molecular Weight : 540.66


(1R)-1-(3-Amino-4-(benzyloxy)phenyl)-2-(((R)-1-(4-methoxyphenyl)propan-2-yl)(1-phenylethyl)amino)ethan-1-ol
(1R)-1-(3-Amino-4-(benzyloxy)phenyl)-2-(((R)-1-(4-methoxyphenyl)propan-2-yl)(1-phenylethyl)amino)ethan-1-ol
Catalogue No.:PA 06 0451017
CAS :
NA
Molecular Formula : C33H38N2O3
Molecular Weight : 510.68


N-(2-(Benzyloxy)-5-((1R)-1-hydroxy-2-(((R)-1-(4-methoxyphenyl)propan-2-yl)(1-phenylethyl)amino)ethyl)phenyl)formamide
N-(2-(Benzyloxy)-5-((1R)-1-hydroxy-2-(((R)-1-(4-methoxyphenyl)propan-2-yl)(1-phenylethyl)amino)ethyl)phenyl)formamide
Catalogue No.:PA 06 0451018
CAS :
NA
Molecular Formula : C34H38N2O4
Molecular Weight : 538.69


N-(2-Hydroxy-5-(1-hydroxy-2-((1-(4-methoxyphenyl)propan-2-yl)amino)ethyl)phenyl)-N-methylformamide
N-(2-Hydroxy-5-(1-hydroxy-2-((1-(4-methoxyphenyl)propan-2-yl)amino)ethyl)phenyl)-N-methylformamide
Catalogue No.:PA 06 0451020
CAS :
NA
Molecular Formula : C20H26N2O4
Molecular Weight : 358.44


N-(5-(2-(Benzyl(1-(4-methoxyphenyl)propan-2-yl)amino)-1-hydroxyethyl)-2-(benzyloxy)phenyl)formamide fumarate
N-(5-(2-(Benzyl(1-(4-methoxyphenyl)propan-2-yl)amino)-1-hydroxyethyl)-2-(benzyloxy)phenyl)formamide fumarate
Catalogue No.:PA 06 0451027
CAS :
43229-69-2
Molecular Formula : C37H40N2O8
Molecular Weight : 640.73


N-(5-(2-(Benzyl(1-(4-methoxy-3-methylphenyl)propan-2-yl)amino)-1-hydroxyethyl)-2-(benzyloxy)phenyl)formamide
N-(5-(2-(Benzyl(1-(4-methoxy-3-methylphenyl)propan-2-yl)amino)-1-hydroxyethyl)-2-(benzyloxy)phenyl)formamide
Catalogue No.:PAI 06 013078
CAS :
1616967-25-9
Molecular Formula : C34H38N2O4
Molecular Weight : 538.69