ezetimibe and its Impurities
An anti-hyperlipidemic medication, it is used for cholesterol lowering that decreases the absorption of cholesterol in the small intestine. Ezetimibe is hence used for treating high cholesterol. Reference standards of Ezetimibe API, and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below.
(3R,6S)-6-(4-Fluorophenyl)-3-((S)-((4-fluorophenyl)amino)(4-hydroxyphenyl)methyl)tetrahydro-2H-pyran-2-one
(3R,6S)-6-(4-Fluorophenyl)-3-((S)-((4-fluorophenyl)amino)(4-hydroxyphenyl)methyl)tetrahydro-2H-pyran-2-one
Catalogue No.:PA 05 0411000
CAS :
NA
Molecular Formula : C24H21F2NO3
Molecular Weight : 409.43
(3S,4R)-1-(4-Fluorophenyl)-3-(3-(4-fluorophenyl)-3-oxopropyl)-4-(4-hydroxyphenyl)azetidin-2-one
(3S,4R)-1-(4-Fluorophenyl)-3-(3-(4-fluorophenyl)-3-oxopropyl)-4-(4-hydroxyphenyl)azetidin-2-one
Catalogue No.:PA 05 0411006
CAS :
1376615-01-8
Molecular Formula : C24H19F2NO3
Molecular Weight : 407.42
(S)-3-((R)-4-(2-(4-Fluorophenyl)-5,5-dimethyl-1,3-dioxan-2-yl)-2-((S)-((4-fluorophenyl)amino)(4-hydroxyphenyl)methyl)butanoyl)-4-phenyloxazolidin-2-one
(S)-3-((R)-4-(2-(4-Fluorophenyl)-5,5-dimethyl-1,3-dioxan-2-yl)-2-((S)-((4-fluorophenyl)amino)(4-hydroxyphenyl)methyl)butanoyl)-4-phenyloxazolidin-2-one
Catalogue No.:PA 05 0411011
CAS :
NA
Molecular Formula : C38H38F2N2O6
Molecular Weight : 656.73
(S)-3-((R)-2-((R)-(4-((tert-Butyldimethylsilyl)oxy)phenyl)((4-fluorophenyl)amino)methyl)-4-(2-(4-fluorophenyl)-5,5-dimethyl-1,3-dioxan-2-yl)butanoyl)-4-phenyloxazolidin-2-one
(S)-3-((R)-2-((R)-(4-((tert-Butyldimethylsilyl)oxy)phenyl)((4-fluorophenyl)amino)methyl)-4-(2-(4-fluorophenyl)-5,5-dimethyl-1,3-dioxan-2-yl)butanoyl)-4-phenyloxazolidin-2-one
Catalogue No.:PA 05 0411012
CAS :
1478663-96-5
Molecular Formula : C44H52F2N2O6Si
Molecular Weight : 770.99
N-(4-Fluorophenyl)-N-((1S,2R,5S)-5-(4-fluorophenyl)-5-hydroxy-1-(4-hydroxyphenyl)-2-((S)-2-oxo-4-phenyloxazolidine-3-carbonyl)pentyl)nitrous Amide
N-(4-Fluorophenyl)-N-((1S,2R,5S)-5-(4-fluorophenyl)-5-hydroxy-1-(4-hydroxyphenyl)-2-((S)-2-oxo-4-phenyloxazolidine-3-carbonyl)pentyl)nitrous Amide
Catalogue No.:PA 05 0411014
CAS :
NA
Molecular Formula : C33H29F2N3O6
Molecular Weight : 601.61
(3R,4S)-1-(4-Fluorophenyl)-3-(3-(4-fluorophenyl)-3-hydroxypropyl)-4-(4-hydroxyphenyl)azetidin-2-one
(3R,4S)-1-(4-Fluorophenyl)-3-(3-(4-fluorophenyl)-3-hydroxypropyl)-4-(4-hydroxyphenyl)azetidin-2-one
Catalogue No.:PA 05 0411020
CAS :
934245-16-6
Molecular Formula : C24H21F2NO3
Molecular Weight : 409.43
Methyl 3-((2R,3R)-2-(4-(benzyloxy)phenyl)-1-(4-fluorophenyl)-4-oxoazetidin-3-yl)propanoate
Methyl 3-((2R,3R)-2-(4-(benzyloxy)phenyl)-1-(4-fluorophenyl)-4-oxoazetidin-3-yl)propanoate
Catalogue No.:PA 05 0411022
CAS :
1607018-80-3
Molecular Formula : C26H24FNO4
Molecular Weight : 433.48
3-((2S,3R)-2-(4-(Benzyloxy)phenyl)-1-(4-fluorophenyl)-4-oxoazetidin-3-yl)propanoic acid Sodium Salt
3-((2S,3R)-2-(4-(Benzyloxy)phenyl)-1-(4-fluorophenyl)-4-oxoazetidin-3-yl)propanoic acid Sodium Salt
Catalogue No.:PA 05 0411024
CAS :
1400989-74-3
Molecular Formula : C25H21FNNaO4
Molecular Weight : 441.43
(3S,4R)-4-(4-(Benzyloxy)phenyl)-1-(4-fluorophenyl)-3-(3-(4-fluorophenyl)-3-oxopropyl)azetidin-2-one
(3S,4R)-4-(4-(Benzyloxy)phenyl)-1-(4-fluorophenyl)-3-(3-(4-fluorophenyl)-3-oxopropyl)azetidin-2-one
Catalogue No.:PA 05 0411028
CAS :
NA
Molecular Formula : C31H25F2NO3
Molecular Weight : 497.54
(S)-3-((2S,5R)-5-(4-Fluorophenyl)-2-((R)-((4-fluorophenyl)amino)(4-hydroxyphenyl)methyl)-5-hydroxypentanoyl)-4-phenyloxazolidin-2-one
(S)-3-((2S,5R)-5-(4-Fluorophenyl)-2-((R)-((4-fluorophenyl)amino)(4-hydroxyphenyl)methyl)-5-hydroxypentanoyl)-4-phenyloxazolidin-2-one
Catalogue No.:PA 05 0411037
CAS :
NA
Molecular Formula : C33H30F2N2O5
Molecular Weight : 572.61
N-(4-Fluorophenyl)-N-((1S,2R,5S)-5-(4-fluorophenyl)-2-((S)-2-oxo-4-phenyloxazolidine-3-carbonyl)-5-((trimethylsilyl)oxy)-1-(4-((trimethylsilyl)oxy)phenyl)pentyl)nitrous amide
N-(4-Fluorophenyl)-N-((1S,2R,5S)-5-(4-fluorophenyl)-2-((S)-2-oxo-4-phenyloxazolidine-3-carbonyl)-5-((trimethylsilyl)oxy)-1-(4-((trimethylsilyl)oxy)phenyl)pentyl)nitrous amide
Catalogue No.:PA 05 0411042
CAS :
NA
Molecular Formula : C39H45F2N3O6Si2
Molecular Weight : 745.97
(3R,4S)-1-(4-Fluorophenyl)-3-[(3S)-3-(4-fluorophenyl)-3-[(trimethylsilyl)oxy]propyl]-4-[4-(phenylmethoxy)phenyl]-2-azetidinone
(3R,4S)-1-(4-Fluorophenyl)-3-[(3S)-3-(4-fluorophenyl)-3-[(trimethylsilyl)oxy]propyl]-4-[4-(phenylmethoxy)phenyl]-2-azetidinone
Catalogue No.:PA 05 0411043
CAS :
1197343-09-1
Molecular Formula : C34H35F2NO3Si
Molecular Weight : 571.74
rel-(3S,4R)-1-(4-Fluorophenyl)-3-[(3R)-3-(2-fluorophenyl)-3-hydroxypropyl]-4-(4-hydroxyphenyl)-2-azetidinone
rel-(3S,4R)-1-(4-Fluorophenyl)-3-[(3R)-3-(2-fluorophenyl)-3-hydroxypropyl]-4-(4-hydroxyphenyl)-2-azetidinone
Catalogue No.:PA 05 0411044
CAS :
1798008-25-9
Molecular Formula : C24H21F2NO3
Molecular Weight : 409.43
(3S,4S)-1-(4-Fluorophenyl)-4-((S)-3-(4-fluorophenyl)-3-hydroxypropyl)-3-(4-hydroxyphenyl)azetidin-2-one
(3S,4S)-1-(4-Fluorophenyl)-4-((S)-3-(4-fluorophenyl)-3-hydroxypropyl)-3-(4-hydroxyphenyl)azetidin-2-one
Catalogue No.:PA 05 0411046
CAS :
NA
Molecular Formula : C24H21F2NO3
Molecular Weight : 409.43
(S)-3-((2S,5S)-5-(4-Fluorophenyl)-2-((S)-((4-fluorophenyl)amino)(4-((trimethylsilyl)oxy)phenyl)methyl)-5-((trimethylsilyl)oxy)pentanoyl)-4-phenyloxazolidin-2-one
(S)-3-((2S,5S)-5-(4-Fluorophenyl)-2-((S)-((4-fluorophenyl)amino)(4-((trimethylsilyl)oxy)phenyl)methyl)-5-((trimethylsilyl)oxy)pentanoyl)-4-phenyloxazolidin-2-one
Catalogue No.:PA 05 0411047
CAS :
NA
Molecular Formula : C39H46F2N2O5Si2
Molecular Weight : 716.97
(S)-3-((2S,5S)-5-(4-Fluorophenyl)-2-((R)-((4-fluorophenyl)amino)(4-((trimethylsilyl)oxy)phenyl)methyl)-5-((trimethylsilyl)oxy)pentanoyl)-4-phenyloxazolidin-2-one
(S)-3-((2S,5S)-5-(4-Fluorophenyl)-2-((R)-((4-fluorophenyl)amino)(4-((trimethylsilyl)oxy)phenyl)methyl)-5-((trimethylsilyl)oxy)pentanoyl)-4-phenyloxazolidin-2-one
Catalogue No.:PA 05 0411048
CAS :
NA
Molecular Formula : C39H46F2N2O5Si2
Molecular Weight : 716.97
(3S,4S)-1-(4-Fluorophenyl)-3-((S)-3-(4-fluorophenyl)-3-((trimethylsilyl)oxy)propyl)-4-(4-((trimethylsilyl)oxy)phenyl)azetidin-2-one
(3S,4S)-1-(4-Fluorophenyl)-3-((S)-3-(4-fluorophenyl)-3-((trimethylsilyl)oxy)propyl)-4-(4-((trimethylsilyl)oxy)phenyl)azetidin-2-one
Catalogue No.:PA 05 0411049
CAS :
NA
Molecular Formula : C30H37F2NO3Si2
Molecular Weight : 553.8
(3R,4R)-1-(4-Fluorophenyl)-3-((S)-3-(4-fluorophenyl)-3-((trimethylsilyl)oxy)propyl)-4-(4-((trimethylsilyl)oxy)phenyl)azetidin-2-one
(3R,4R)-1-(4-Fluorophenyl)-3-((S)-3-(4-fluorophenyl)-3-((trimethylsilyl)oxy)propyl)-4-(4-((trimethylsilyl)oxy)phenyl)azetidin-2-one
Catalogue No.:PA 05 0411050
CAS :
NA
Molecular Formula : C30H37F2NO3Si2
Molecular Weight : 553.8
(3S,4R)-1-(4-Fluorophenyl)-3-((S)-3-(4-fluorophenyl)-3-((trimethylsilyl)oxy)propyl)-4-(4-((trimethylsilyl)oxy)phenyl)azetidin-2-one
(3S,4R)-1-(4-Fluorophenyl)-3-((S)-3-(4-fluorophenyl)-3-((trimethylsilyl)oxy)propyl)-4-(4-((trimethylsilyl)oxy)phenyl)azetidin-2-one
Catalogue No.:PA 05 0411051
CAS :
NA
Molecular Formula : C30H37F2NO3Si2
Molecular Weight : 553.8