ketoconazole and its Impurities
Ketoconazole is used for fungal skin infections such as tinea, cutaneous candidiasis, pityriasis versicolor, dandruff, and seborrhoeic dermatitis. It is sold under the brand name Nizoral. Reference standards of Ketoconazole API,and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below.
Ketoconazole - Impurity B
1-[4-[4-[5-(4-Acetylpiperazin-1-yl)-2-[[(2RS,4SR)-2-(2,4-dichlorophenyl)-2-[(1H-imidazol-1- yl)methyl]-1,3-dioxolan-4-yl]methoxy]phenoxy]phenyl]piperazin-1-yl]ethan-1-one
Catalogue No.:PA 11 03020
CAS :
1346598-39-7
Molecular Formula : C38H42Cl2N6O6
Molecular Weight : 749.68
1-(4-(2-(1-(1,3-Dioxolan-4-yl)-2-(1H-imidazol-1-yl)ethoxy)-2',4'-dichloro-[1,1'-biphenyl]-4-yl)-3,4-dihydropyrazin-1(2H)-yl)ethanone
1-(4-(2-(1-(1,3-Dioxolan-4-yl)-2-(1H-imidazol-1-yl)ethoxy)-2',4'-dichloro-[1,1'-biphenyl]-4-yl)-3,4-dihydropyrazin-1(2H)-yl)ethanone
Catalogue No.:PA 11 03520
CAS :
NA
Molecular Formula : C26H26Cl2N4O4
Molecular Weight : 529.42
1-Acetyl-4-[4-[[(2RS,4SR)-2-(2,4-dichlorophenyl)-2-(bromomethyl)-1,3-dioxolan-4-yl]methoxy]phenyl]piperazine
1-Acetyl-4-[4-[[(2RS,4SR)-2-(2,4-dichlorophenyl)-2-(bromomethyl)-1,3-dioxolan-4-yl]methoxy]phenyl]piperazine
Catalogue No.:PA 11 03550
CAS :
98405-42-6
Molecular Formula : C23H25BrCl2N2O4
Molecular Weight : 544.27
((2S,4S)-2-((1H-Imidazol-1-yl)methyl)-2-(2,4-dichlorophenyl)-1,3-dioxolan-4-yl)methyl 4-methylbenzenesulfonate
((2S,4S)-2-((1H-Imidazol-1-yl)methyl)-2-(2,4-dichlorophenyl)-1,3-dioxolan-4-yl)methyl 4-methylbenzenesulfonate
Catalogue No.:PA 11 03580
CAS :
1610851-14-3
Molecular Formula : C21H20Cl2N2O5S
Molecular Weight : 483.36
((2R,4R)-2-((1H-Imidazol-1-yl)methyl)-2-(2,4-dichlorophenyl)-1,3-dioxolan-4-yl)methyl 4-(4-acetylpiperazin-1-yl)-2-hydroxybenzenesulfonate
((2R,4R)-2-((1H-Imidazol-1-yl)methyl)-2-(2,4-dichlorophenyl)-1,3-dioxolan-4-yl)methyl 4-(4-acetylpiperazin-1-yl)-2-hydroxybenzenesulfonate
Catalogue No.:PA 11 03620
CAS :
NA
Molecular Formula : C26H28Cl2N4O7S
Molecular Weight : 611.49
1-(4-(4-(((2R,4R)-2-((1H-Imidazol-1-yl)methyl)-2-(2,4-dichlorophenyl)-1,3-dioxolan-4-yl)oxy)phenyl)piperazin-1-yl)vinyl Hydrogen Sulfate
1-(4-(4-(((2R,4R)-2-((1H-Imidazol-1-yl)methyl)-2-(2,4-dichlorophenyl)-1,3-dioxolan-4-yl)oxy)phenyl)piperazin-1-yl)vinyl Hydrogen Sulfate
Catalogue No.:PA 11 03630
CAS :
NA
Molecular Formula : C25H26Cl2N4O7S
Molecular Weight : 597.46
2-(((2R,4R)-2-((1H-Imidazol-1-yl)methyl)-2-(2,4-dichlorophenyl)-1,3-dioxolan-4-yl)oxy)-5-(4-acetylpiperazin-1-yl)phenyl Hydrogen Sulfite
2-(((2R,4R)-2-((1H-Imidazol-1-yl)methyl)-2-(2,4-dichlorophenyl)-1,3-dioxolan-4-yl)oxy)-5-(4-acetylpiperazin-1-yl)phenyl Hydrogen Sulfite
Catalogue No.:PA 11 03640
CAS :
NA
Molecular Formula : C25H26Cl2N4O7S
Molecular Weight : 597.46
1-(4-(4-(((2R,4S)-2-((1H-Imidazol-1-yl)methyl)-2-(2-chlorophenyl)-1,3-dioxolan-4-yl)methoxy)phenyl)piperazin-1-yl)ethan-1-one
1-(4-(4-(((2R,4S)-2-((1H-Imidazol-1-yl)methyl)-2-(2-chlorophenyl)-1,3-dioxolan-4-yl)methoxy)phenyl)piperazin-1-yl)ethan-1-one
Catalogue No.:PA 11 0031004
CAS :
1334423-12-9
Molecular Formula : C26H29ClN4O4
Molecular Weight : 496.99
1-(4-(4-(((2R,4S)-2-((1H-Imidazol-1-yl)methyl)-2-(4-chlorophenyl)-1,3-dioxolan-4-yl)methoxy)phenyl)piperazin-1-yl)ethan-1-one
1-(4-(4-(((2R,4S)-2-((1H-Imidazol-1-yl)methyl)-2-(4-chlorophenyl)-1,3-dioxolan-4-yl)methoxy)phenyl)piperazin-1-yl)ethan-1-one
Catalogue No.:PA 11 0031005
CAS :
91458-32-1
Molecular Formula : C26H29ClN4O4
Molecular Weight : 496.99
4-Acetyl-1-(4-((2-(2,4-dichlorophenyl)-2-(1H-imidazole-1-carbonyl)-1,3-dioxolan-4-yl)methoxy)-3,6-dioxocyclohexa-1,4-dien-1-yl)piperazine-2,6-dione
4-Acetyl-1-(4-((2-(2,4-dichlorophenyl)-2-(1H-imidazole-1-carbonyl)-1,3-dioxolan-4-yl)methoxy)-3,6-dioxocyclohexa-1,4-dien-1-yl)piperazine-2,6-dione
Catalogue No.:PA 11 0031006
CAS :
NA
Molecular Formula : C26H20Cl2N4O9
Molecular Weight : 603.37
2-(((2S,4S)-2-((1H-Imidazol-1-yl)methyl)-2-(2,4-dichlorophenyl)-1,3-dioxolan-4-yl)methoxy)-5-(4-acetylpyrazin-1(4H)-yl)cyclohexa-2,5-diene-1,4-dione
2-(((2S,4S)-2-((1H-Imidazol-1-yl)methyl)-2-(2,4-dichlorophenyl)-1,3-dioxolan-4-yl)methoxy)-5-(4-acetylpyrazin-1(4H)-yl)cyclohexa-2,5-diene-1,4-dione
Catalogue No.:PA 11 0031007
CAS :
NA
Molecular Formula : C26H22Cl2N4O6
Molecular Weight : 557.38
N-((Z)-2-((4-(((2S,4S)-2-((1H-Imidazol-1-yl)methyl)-2-(2,4-dichlorophenyl)-1,3-dioxolan-4-yl)methoxy)phenyl)amino)vinyl)acetamide
N-((Z)-2-((4-(((2S,4S)-2-((1H-Imidazol-1-yl)methyl)-2-(2,4-dichlorophenyl)-1,3-dioxolan-4-yl)methoxy)phenyl)amino)vinyl)acetamide
Catalogue No.:PA 11 0031008
CAS :
NA
Molecular Formula : C24H24Cl2N4O4
Molecular Weight : 503.38
1-(4-(((2S,4S)-2-((1H-Imidazol-1-yl)methyl)-2-(2,4-dichlorophenyl)-1,3-dioxolan-4-yl)methoxy)phenyl)-4-acetyl-1,2,3,4-tetrahydropyrazine 1-oxide
1-(4-(((2S,4S)-2-((1H-Imidazol-1-yl)methyl)-2-(2,4-dichlorophenyl)-1,3-dioxolan-4-yl)methoxy)phenyl)-4-acetyl-1,2,3,4-tetrahydropyrazine 1-oxide
Catalogue No.:PA 11 0031009
CAS :
NA
Molecular Formula : C26H26Cl2N4O5
Molecular Weight : 545.42
rel-N-[2-[[4-[[(2R,4S)-2-(2,4-Dichlorophenyl)-2-(1H-imidazol-1-ylmethyl)-1,3-dioxolan-4-yl]methoxy]phenyl]amino]ethyl]acetamide
rel-N-[2-[[4-[[(2R,4S)-2-(2,4-Dichlorophenyl)-2-(1H-imidazol-1-ylmethyl)-1,3-dioxolan-4-yl]methoxy]phenyl]amino]ethyl]acetamide
Catalogue No.:PA 11 0031014
CAS :
1253852-50-4
Molecular Formula : C24H26Cl2N4O4
Molecular Weight : 505.4
((2R,4S)-2-((1H-Imidazol-1-yl)methyl)-2-(2,4-dichlorophenyl)-1,3-dioxolan-4-yl)methyl 4-methylbenzenesulfonate
((2R,4S)-2-((1H-Imidazol-1-yl)methyl)-2-(2,4-dichlorophenyl)-1,3-dioxolan-4-yl)methyl 4-methylbenzenesulfonate
Catalogue No.:PA 11 0031016
CAS :
2095256-87-2
Molecular Formula : C21H20Cl2N2O5S
Molecular Weight : 483.36
(2-((1H-Imidazol-1-yl)methyl)-2-(2,4-dichlorophenyl)-1,3-dioxolan-4-yl)methyl methanesulfonate
(2-((1H-Imidazol-1-yl)methyl)-2-(2,4-dichlorophenyl)-1,3-dioxolan-4-yl)methyl methanesulfonate
Catalogue No.:PAI 11 001127
CAS :
345649-43-6
Molecular Formula : C15H16Cl2N2O5S
Molecular Weight : 407.26
rel-1-(4-(4-(((2S,5R)-5-((1H-Imidazol-1-yl)methyl)-5-(2,4-dichlorophenyl)tetrahydrofuran-2-yl)methoxy)phenyl)piperazin-1-yl)ethan-1-one
rel-1-(4-(4-(((2S,5R)-5-((1H-Imidazol-1-yl)methyl)-5-(2,4-dichlorophenyl)tetrahydrofuran-2-yl)methoxy)phenyl)piperazin-1-yl)ethan-1-one
Catalogue No.:PAI 11 001128
CAS :
123916-45-0
Molecular Formula : C27H30Cl2N4O3
Molecular Weight : 529.46
1-(4-((2-((1H-Imidazol-1-yl)methyl)-2-(2,4-dichlorophenyl)-1,3-dioxolan-4-yl)methoxy)phenyl)-4-nitrosopiperazine
1-(4-((2-((1H-Imidazol-1-yl)methyl)-2-(2,4-dichlorophenyl)-1,3-dioxolan-4-yl)methoxy)phenyl)-4-nitrosopiperazine
Catalogue No.:PA 11 0031018
CAS :
NA
Molecular Formula : C24H25Cl2N5O4
Molecular Weight : 518.4
1-(((2S,4R)-4-((4-(4-Acetylpiperazin-1-yl)phenoxy)methyl)-2-(2,4-dichlorophenyl)-1,3-dioxolan-2-yl)methyl)-3-(3,5-di-tert-butyl-4-hydroxybenzyl)-1H-imidazol-3-ium 2,2,2-trifluoroacetate
1-(((2S,4R)-4-((4-(4-Acetylpiperazin-1-yl)phenoxy)methyl)-2-(2,4-dichlorophenyl)-1,3-dioxolan-2-yl)methyl)-3-(3,5-di-tert-butyl-4-hydroxybenzyl)-1H-imidazol-3-ium 2,2,2-trifluoroacetate
Catalogue No.:PA 11 0031020
CAS :
NA
Molecular Formula : C43H51Cl2F3N4O7
Molecular Weight : 863.8
5-((2-((1H-Imidazol-1-yl)methyl)-2-(2,4-dichlorophenyl)-1,3-dioxolan-4-yl)methoxy)-2-(4-acetylpiperazin-1-yl)phenyl Hydrogen Sulfite
5-((2-((1H-Imidazol-1-yl)methyl)-2-(2,4-dichlorophenyl)-1,3-dioxolan-4-yl)methoxy)-2-(4-acetylpiperazin-1-yl)phenyl Hydrogen Sulfite
Catalogue No.:PA 11 0031021
CAS :
NA
Molecular Formula : C26H28Cl2N4O7S
Molecular Weight : 611.49
1-(4-(4-(((4R)-2-((1H-Imidazol-1-yl)methyl)-2-(2,4-dichlorophenyl)-1,3-dioxolan-4-yl)methoxy)-3-mercaptooxyphenyl)piperazin-1-yl)ethan-1-one
1-(4-(4-(((4R)-2-((1H-Imidazol-1-yl)methyl)-2-(2,4-dichlorophenyl)-1,3-dioxolan-4-yl)methoxy)-3-mercaptooxyphenyl)piperazin-1-yl)ethan-1-one
Catalogue No.:PA 11 0031022
CAS :
NA
Molecular Formula : C26H28Cl2N4O5S
Molecular Weight : 579.49
