isavuconazole and its Impurities
Isavuconazonium is used to treat invasive aspergillosis and invasive mucormycosis in adults ages 18 years and older. It is under the brand name Cresemba. It is a prodrug of isavuconazole. Reference standards of Isavuconazole API,and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below.


(2R,3R)-3-(2,5-Difluorophenyl)-3-hydroxy-2-methyl-4-(1H-1,2,4-triazol-1-yl)butanethioamide
(2R,3R)-3-(2,5-Difluorophenyl)-3-hydroxy-2-methyl-4-(1H-1,2,4-triazol-1-yl)butanethioamide
Catalogue No.:PA 09 0421000
CAS :
368421-58-3
Molecular Formula : C13H14F2N4OS
Molecular Weight : 312.34


1-((2R,3S)-3-(4-(4-Cyanophenyl)thiazol-2-yl)-2-(2,5-difluorophenyl)-2-hydroxybutyl)-4-(1-((methyl(3-(((methylglycyl)oxy)methyl)pyridin-2-yl)carbamoyl)oxy)ethyl)-1H-1,2,4-triazol-4-ium Iodide Hydrochloride
1-((2R,3S)-3-(4-(4-Cyanophenyl)thiazol-2-yl)-2-(2,5-difluorophenyl)-2-hydroxybutyl)-4-(1-((methyl(3-(((methylglycyl)oxy)methyl)pyridin-2-yl)carbamoyl)oxy)ethyl)-1H-1,2,4-triazol-4-ium Iodide Hydrochloride
Catalogue No.:PA 09 0421001
CAS :
2169911-48-0
Molecular Formula : C35H36ClF2IN8O5S
Molecular Weight : 881.14


4-(1-(((3-(((N-(Tert-butoxycarbonyl)-N-methylglycyl)oxy)methyl)pyridin-2-yl)(methyl)carbamoyl)oxy)ethyl)-1-((2R,3S)-3-(4-(4-cyanophenyl)thiazol-2-yl)-2-(2,5-difluorophenyl)-2-hydroxybutyl)-1H-1,2,4-triazol-4-ium Iodide;
4-(1-(((3-(((N-(Tert-butoxycarbonyl)-N-methylglycyl)oxy)methyl)pyridin-2-yl)(methyl)carbamoyl)oxy)ethyl)-1-((2R,3S)-3-(4-(4-cyanophenyl)thiazol-2-yl)-2-(2,5-difluorophenyl)-2-hydroxybutyl)-1H-1,2,4-triazol-4-ium Iodide;
Catalogue No.:PA 09 0421002
CAS :
2169911-50-4
Molecular Formula : C40H43F2IN8O7S
Molecular Weight : 944.79


(2S,3R)-3-(2,5-Difluorophenyl)-3-hydroxy-2-methyl-4-(1H-1,2,4-triazol-1-yl)butanethioamide
(2S,3R)-3-(2,5-Difluorophenyl)-3-hydroxy-2-methyl-4-(1H-1,2,4-triazol-1-yl)butanethioamide
Catalogue No.:PA 09 0421005
CAS :
2170932-49-5
Molecular Formula : C13H14F2N4OS
Molecular Weight : 312.34


1-((2S,3R)-3-(4-(4-Cyanophenyl)thiazol-2-yl)-2-(2,5-difluorophenyl)-2-hydroxybutyl)-4-(1-((methyl(3-(((methylglycyl)oxy)methyl)pyridin-2-yl)carbamoyl)oxy)ethyl)-1H-1,2,4-triazol-4-ium Chloride Dihydrochloride
1-((2S,3R)-3-(4-(4-Cyanophenyl)thiazol-2-yl)-2-(2,5-difluorophenyl)-2-hydroxybutyl)-4-(1-((methyl(3-(((methylglycyl)oxy)methyl)pyridin-2-yl)carbamoyl)oxy)ethyl)-1H-1,2,4-triazol-4-ium Chloride Dihydrochloride
Catalogue No.:PA 09 0421008
CAS :
NA
Molecular Formula : C35H37Cl3F2N8O5S
Molecular Weight : 826.14


1-((2S,3S)-3-(4-(4-Cyanophenyl)thiazol-2-yl)-2-(2,5-difluorophenyl)-2-hydroxybutyl)-4-(1-((methyl(3-(((methylglycyl)oxy)methyl)pyridin-2-yl)carbamoyl)oxy)ethyl)-1H-1,2,4-triazol-4-ium Chloride Dihydrochloride
1-((2S,3S)-3-(4-(4-Cyanophenyl)thiazol-2-yl)-2-(2,5-difluorophenyl)-2-hydroxybutyl)-4-(1-((methyl(3-(((methylglycyl)oxy)methyl)pyridin-2-yl)carbamoyl)oxy)ethyl)-1H-1,2,4-triazol-4-ium Chloride Dihydrochloride
Catalogue No.:PA 09 0421009
CAS :
NA
Molecular Formula : C35H37Cl3F2N8O5S
Molecular Weight : 826.14


1-((2R,3R)-3-(4-(4-Cyanophenyl)thiazol-2-yl)-2-(2,5-difluorophenyl)-2-hydroxybutyl)-4-(1-(((3-(hydroxymethyl)pyridin-2-yl)(methyl)carbamoyl)oxy)ethyl)-1H-1,2,4-triazol-4-ium Chloride
1-((2R,3R)-3-(4-(4-Cyanophenyl)thiazol-2-yl)-2-(2,5-difluorophenyl)-2-hydroxybutyl)-4-(1-(((3-(hydroxymethyl)pyridin-2-yl)(methyl)carbamoyl)oxy)ethyl)-1H-1,2,4-triazol-4-ium Chloride
Catalogue No.:PA 09 0421010
CAS :
NA
Molecular Formula : C32H30ClF2N7O4S
Molecular Weight : 682.14


1-((2R,3R)-3-(4-(4-Cyanophenyl)thiazol-2-yl)-2-(2,5-difluorophenyl)-2-hydroxybutyl)-4-(1-(((3-(5,8-dimethyl-2-(3-(((methylglycyl)oxy)methyl)pyridin-2-yl)-3,7,10-trioxo-4,6,11-trioxa-2,8-diazadodecan-12-yl)pyridin-2-yl)(methyl)carbamoyl)oxy)ethyl)-1H-1,2,4-triazol-4-ium Chloride
1-((2R,3R)-3-(4-(4-Cyanophenyl)thiazol-2-yl)-2-(2,5-difluorophenyl)-2-hydroxybutyl)-4-(1-(((3-(5,8-dimethyl-2-(3-(((methylglycyl)oxy)methyl)pyridin-2-yl)-3,7,10-trioxo-4,6,11-trioxa-2,8-diazadodecan-12-yl)pyridin-2-yl)(methyl)carbamoyl)oxy)ethyl)-1H-1,2,4-triazol-4-ium Chloride
Catalogue No.:PA 09 0421011
CAS :
NA
Molecular Formula : C49H52ClF2N11O11S
Molecular Weight : 1076.53


4-(2-((2S,3R)-3-(2,5-Difluorophenyl)-3-hydroxy-4-(1H-1,2,4-triazol-1-yl)butan-2-yl)thiazol-4-yl)benzonitrile
4-(2-((2S,3R)-3-(2,5-Difluorophenyl)-3-hydroxy-4-(1H-1,2,4-triazol-1-yl)butan-2-yl)thiazol-4-yl)benzonitrile
Catalogue No.:PA 09 0421012
CAS :
1176988-44-5
Molecular Formula : C22H17F2N5OS
Molecular Weight : 437.47


rel-4-(2-((2R,3S)-3-(2,5-Difluorophenyl)-3-hydroxy-4-(1H-1,2,4-triazol-1-yl)butan-2-yl)thiazol-4-yl)benzonitrile
rel-4-(2-((2R,3S)-3-(2,5-Difluorophenyl)-3-hydroxy-4-(1H-1,2,4-triazol-1-yl)butan-2-yl)thiazol-4-yl)benzonitrile
Catalogue No.:PA 09 0421013
CAS :
1797905-83-9
Molecular Formula : C22H17F2N5OS
Molecular Weight : 437.47


4-(1-(((3-(((N-(tert-Butoxycarbonyl)-N-methylglycyl)oxy)methyl)pyridin-2-yl)(methyl)carbamoyl)oxy)ethyl)-1-((2R,3R)-3-(4-(4-cyanophenyl)thiazol-2-yl)-2-(2,5-difluorophenyl)-2-hydroxybutyl)-1H-1,2,4-triazol-4-ium Iodide
4-(1-(((3-(((N-(tert-Butoxycarbonyl)-N-methylglycyl)oxy)methyl)pyridin-2-yl)(methyl)carbamoyl)oxy)ethyl)-1-((2R,3R)-3-(4-(4-cyanophenyl)thiazol-2-yl)-2-(2,5-difluorophenyl)-2-hydroxybutyl)-1H-1,2,4-triazol-4-ium Iodide
Catalogue No.:PA 09 0421015
CAS :
338990-64-0
Molecular Formula : C40H43F2IN8O7S
Molecular Weight : 944.79


1-((2R,3R)-3-(4-(4-Cyanophenyl)thiazol-2-yl)-2-(2,5-difluorophenyl)-2-hydroxybutyl)-4-(1-(((3-(hydroxymethyl)pyridin-2-yl)(methyl)carbamoyl)oxy)ethyl)-1H-1,2,4-triazol-4-ium Chloride Hydrochloride
1-((2R,3R)-3-(4-(4-Cyanophenyl)thiazol-2-yl)-2-(2,5-difluorophenyl)-2-hydroxybutyl)-4-(1-(((3-(hydroxymethyl)pyridin-2-yl)(methyl)carbamoyl)oxy)ethyl)-1H-1,2,4-triazol-4-ium Chloride Hydrochloride
Catalogue No.:PA 09 0421016
CAS :
NA
Molecular Formula : C32H31Cl2F2N7O4S
Molecular Weight : 718.6


4-(1-(((3-(((N-(tert-Butoxycarbonyl)-N-methylglycyl)oxy)methyl)pyridin-2-yl)(methyl)carbamoyl)oxy)ethyl)-1-((2R,3R)-3-(4-(4-cyanophenyl)thiazol-2-yl)-2-(2,5-difluorophenyl)-2-hydroxybutyl)-1H-1,2,4-triazol-4-ium Chloride
4-(1-(((3-(((N-(tert-Butoxycarbonyl)-N-methylglycyl)oxy)methyl)pyridin-2-yl)(methyl)carbamoyl)oxy)ethyl)-1-((2R,3R)-3-(4-(4-cyanophenyl)thiazol-2-yl)-2-(2,5-difluorophenyl)-2-hydroxybutyl)-1H-1,2,4-triazol-4-ium Chloride
Catalogue No.:PA 09 0421019
CAS :
338990-63-9
Molecular Formula : C40H43ClF2N8O7S
Molecular Weight : 853.34


1-((2R,3R)-3-(4-(4-(tert-Butylcarbamoyl)phenyl)thiazol-2-yl)-2-(2,5-difluorophenyl)-2-hydroxybutyl)-4-(1-((methyl(3-(((methylglycyl)oxy)methyl)pyridin-2-yl)carbamoyl)oxy)ethyl)-1H-1,2,4-triazol-4-ium Chloride
1-((2R,3R)-3-(4-(4-(tert-Butylcarbamoyl)phenyl)thiazol-2-yl)-2-(2,5-difluorophenyl)-2-hydroxybutyl)-4-(1-((methyl(3-(((methylglycyl)oxy)methyl)pyridin-2-yl)carbamoyl)oxy)ethyl)-1H-1,2,4-triazol-4-ium Chloride
Catalogue No.:PA 09 0421020
CAS :
NA
Molecular Formula : C39H45ClF2N8O6S
Molecular Weight : 827.35


4-(1-(((3-(((N-(tert-Butoxycarbonyl)-N-methylglycyl)oxy)methyl)pyridin-2-yl)(methyl)carbamoyl)oxy)ethyl)-1-((2R,3R)-2-(1-(((3-(((N-carboxy-N-methylglycyl)oxy)methyl)pyridin-2-yl)(methyl)carbamoyl)oxy)ethoxy)-3-(4-(4-cyanophenyl)thiazol-2-yl)-2-(2,5-difluorophenyl)butyl)-1H-1,2,4-triazol-4-ium Chloride
4-(1-(((3-(((N-(tert-Butoxycarbonyl)-N-methylglycyl)oxy)methyl)pyridin-2-yl)(methyl)carbamoyl)oxy)ethyl)-1-((2R,3R)-2-(1-(((3-(((N-carboxy-N-methylglycyl)oxy)methyl)pyridin-2-yl)(methyl)carbamoyl)oxy)ethoxy)-3-(4-(4-cyanophenyl)thiazol-2-yl)-2-(2,5-difluorophenyl)butyl)-1H-1,2,4-triazol-4-ium Chloride
Catalogue No.:PA 09 0421021
CAS :
NA
Molecular Formula : C54H60ClF2N11O13S
Molecular Weight : 1176.64


1-((2R,3R)-3-(4-(4-Cyanophenyl)thiazol-2-yl)-2-(2,5-difluorophenyl)-2-hydroxybutyl)-4-(1-((methyl(3-(((N-methyl-N-nitrosoglycyl)oxy)methyl)pyridin-2-yl)carbamoyl)oxy)ethyl)-1H-1,2,4-triazol-4-ium Hydrogen Sulfate
1-((2R,3R)-3-(4-(4-Cyanophenyl)thiazol-2-yl)-2-(2,5-difluorophenyl)-2-hydroxybutyl)-4-(1-((methyl(3-(((N-methyl-N-nitrosoglycyl)oxy)methyl)pyridin-2-yl)carbamoyl)oxy)ethyl)-1H-1,2,4-triazol-4-ium Hydrogen Sulfate
Catalogue No.:PA 09 0421022
CAS :
NA
Molecular Formula : C35H35F2N9O10S2
Molecular Weight : 843.83


1-(3-(4-(4-Cyanophenyl)thiazol-2-yl)-2-(2,5-difluorophenyl)-2-hydroxybutyl)-4-(1-(((3-(5,8-dimethyl-2-(3-(((methylglycyl)oxy)methyl)pyridin-2-yl)-3,7,10-trioxo-4,6,11-trioxa-2,8-diazadodecan-12-yl)pyridin-2-yl)(methyl)carbamoyl)oxy)ethyl)-1H-1,2,4-triazol-4-ium Hydrogen Sulfate
1-(3-(4-(4-Cyanophenyl)thiazol-2-yl)-2-(2,5-difluorophenyl)-2-hydroxybutyl)-4-(1-(((3-(5,8-dimethyl-2-(3-(((methylglycyl)oxy)methyl)pyridin-2-yl)-3,7,10-trioxo-4,6,11-trioxa-2,8-diazadodecan-12-yl)pyridin-2-yl)(methyl)carbamoyl)oxy)ethyl)-1H-1,2,4-triazol-4-ium Hydrogen Sulfate
Catalogue No.:PA 09 0421023
CAS :
NA
Molecular Formula : C49H53F2N11O15S2
Molecular Weight : 1138.14


(2R,3R)-2-(2,5-Difluorophenyl)-3-((tetrahydro-2H-pyran-2-yl)oxy)-1-(1H-1,2,4-triazol-1-yl)butan-2-ol
(2R,3R)-2-(2,5-Difluorophenyl)-3-((tetrahydro-2H-pyran-2-yl)oxy)-1-(1H-1,2,4-triazol-1-yl)butan-2-ol
Catalogue No.:PA 09 0421026
CAS :
1884463-51-7
Molecular Formula : C17H21F2N3O3
Molecular Weight : 353.37


1-((2R,3R)-3-(4-(4-Cyanophenyl)thiazol-2-yl)-2-(2,5-difluorophenyl)-2-hydroxybutyl)-4-(1-(((3-(hydroxymethyl)pyridin-2-yl)(methyl)carbamoyl)oxy)ethyl)-4H-1,2,4-triazol-1-ium Hydrogen Sulfate
1-((2R,3R)-3-(4-(4-Cyanophenyl)thiazol-2-yl)-2-(2,5-difluorophenyl)-2-hydroxybutyl)-4-(1-(((3-(hydroxymethyl)pyridin-2-yl)(methyl)carbamoyl)oxy)ethyl)-4H-1,2,4-triazol-1-ium Hydrogen Sulfate
Catalogue No.:PA 09 0421029
CAS :
NA
Molecular Formula : C32H31F2N7O8S2
Molecular Weight : 743.76


1-((2S,3S)-3-(4-(4-Cyanophenyl)thiazol-2-yl)-2-(2,5-difluorophenyl)-2-hydroxybutyl)-4-(1-((methyl(3-(((methylglycyl)oxy)methyl)pyridin-2-yl)carbamoyl)oxy)ethyl)-1H-1,2,4-triazol-4-ium Hydrogen Sulfate
1-((2S,3S)-3-(4-(4-Cyanophenyl)thiazol-2-yl)-2-(2,5-difluorophenyl)-2-hydroxybutyl)-4-(1-((methyl(3-(((methylglycyl)oxy)methyl)pyridin-2-yl)carbamoyl)oxy)ethyl)-1H-1,2,4-triazol-4-ium Hydrogen Sulfate
Catalogue No.:PA 09 0421030
CAS :
NA
Molecular Formula : C35H36F2N8O9S2
Molecular Weight : 814.84


4-(1-(((3-(((N-(tert-Butoxycarbonyl)-N-methylglycyl)oxy)methyl)pyridin-2-yl)(methyl)carbamoyl)oxy)ethyl)-1-((2R,3R)-2-(1-(((3-(((N-carboxy-N-methylglycyl)oxy)methyl)pyridin-2-yl)(methyl)carbamoyl)oxy)ethoxy)-3-(4-(4-cyanophenyl)thiazol-2-yl)-2-(2,5-difluorophenyl)butyl)-1H-1,2,4-triazol-4-ium Hydrogen Sulfate
4-(1-(((3-(((N-(tert-Butoxycarbonyl)-N-methylglycyl)oxy)methyl)pyridin-2-yl)(methyl)carbamoyl)oxy)ethyl)-1-((2R,3R)-2-(1-(((3-(((N-carboxy-N-methylglycyl)oxy)methyl)pyridin-2-yl)(methyl)carbamoyl)oxy)ethoxy)-3-(4-(4-cyanophenyl)thiazol-2-yl)-2-(2,5-difluorophenyl)butyl)-1H-1,2,4-triazol-4-ium Hydrogen Sulfate
Catalogue No.:PA 09 0421031
CAS :
NA
Molecular Formula : C54H61F2N11O17S2
Molecular Weight : 1238.26


1-((2S,3R)-3-(4-(4-Cyanophenyl)thiazol-2-yl)-2-(2,5-difluorophenyl)-2-hydroxybutyl)-4-(1-((methyl(3-(((N-methyl-N-(methyl(3-(((methylglycyl)oxy)methyl)pyridin-2-yl)carbamoyl)glycyl)oxy)methyl)pyridin-2-yl)carbamoyl)oxy)ethyl)-1H-1,2,4-triazol-4-ium Hydrogen Sulfate
1-((2S,3R)-3-(4-(4-Cyanophenyl)thiazol-2-yl)-2-(2,5-difluorophenyl)-2-hydroxybutyl)-4-(1-((methyl(3-(((N-methyl-N-(methyl(3-(((methylglycyl)oxy)methyl)pyridin-2-yl)carbamoyl)glycyl)oxy)methyl)pyridin-2-yl)carbamoyl)oxy)ethyl)-1H-1,2,4-triazol-4-ium Hydrogen Sulfate
Catalogue No.:PA 09 0421033
CAS :
NA
Molecular Formula : C46H49F2N11O12S2
Molecular Weight : 1050.08


1-((2S,3R)-3-(4-(4-Cyanophenyl)thiazol-2-yl)-2-(2,5-difluorophenyl)-2-hydroxybutyl)-4-(1-((methyl(3-(((methylglycyl)oxy)methyl)pyridin-2-yl)carbamoyl)oxy)ethyl)-1H-1,2,4-triazol-4-ium Chloride Hydrochloride
1-((2S,3R)-3-(4-(4-Cyanophenyl)thiazol-2-yl)-2-(2,5-difluorophenyl)-2-hydroxybutyl)-4-(1-((methyl(3-(((methylglycyl)oxy)methyl)pyridin-2-yl)carbamoyl)oxy)ethyl)-1H-1,2,4-triazol-4-ium Chloride Hydrochloride
Catalogue No.:PA 09 0421035
CAS :
NA
Molecular Formula : C35H36Cl2F2N8O5S
Molecular Weight : 789.68


1-((2S,3S)-3-(4-(4-Cyanophenyl)thiazol-2-yl)-2-(2,5-difluorophenyl)-2-hydroxybutyl)-4-(1-((methyl(3-(((methylglycyl)oxy)methyl)pyridin-2-yl)carbamoyl)oxy)ethyl)-1H-1,2,4-triazol-4-ium Chloride Hydrochloride
1-((2S,3S)-3-(4-(4-Cyanophenyl)thiazol-2-yl)-2-(2,5-difluorophenyl)-2-hydroxybutyl)-4-(1-((methyl(3-(((methylglycyl)oxy)methyl)pyridin-2-yl)carbamoyl)oxy)ethyl)-1H-1,2,4-triazol-4-ium Chloride Hydrochloride
Catalogue No.:PA 09 0421036
CAS :
NA
Molecular Formula : C35H36Cl2F2N8O5S
Molecular Weight : 789.68


1-((2R,3R)-3-(4-(4-Carbamoylphenyl)thiazol-2-yl)-2-(2,5-difluorophenyl)-2-hydroxybutyl)-4-(1-((methyl(3-(((methylglycyl)oxy)methyl)pyridin-2-yl)carbamoyl)oxy)ethyl)-1H-1,2,4-triazol-4-ium Bromide Dihydrobromide
1-((2R,3R)-3-(4-(4-Carbamoylphenyl)thiazol-2-yl)-2-(2,5-difluorophenyl)-2-hydroxybutyl)-4-(1-((methyl(3-(((methylglycyl)oxy)methyl)pyridin-2-yl)carbamoyl)oxy)ethyl)-1H-1,2,4-triazol-4-ium Bromide Dihydrobromide
Catalogue No.:PA 09 0421042
CAS :
NA
Molecular Formula : C35H39Br3F2N8O6S
Molecular Weight : 977.52


4-(1-(((3-(((N-(tert-Butoxycarbonyl)-N-methylglycyl)oxy)methyl)pyridin-2-yl)(methyl)carbamoyl)oxy)ethyl)-1-((2R,3R)-3-(4-(4-cyanophenyl)thiazol-2-yl)-2-(2,5-difluorophenyl)-2-hydroxybutyl)-1H-1,2,4-triazol-4-ium 2,2,2-trifluoroacetate
4-(1-(((3-(((N-(tert-Butoxycarbonyl)-N-methylglycyl)oxy)methyl)pyridin-2-yl)(methyl)carbamoyl)oxy)ethyl)-1-((2R,3R)-3-(4-(4-cyanophenyl)thiazol-2-yl)-2-(2,5-difluorophenyl)-2-hydroxybutyl)-1H-1,2,4-triazol-4-ium 2,2,2-trifluoroacetate
Catalogue No.:PA 09 0421043
CAS :
2657709-92-5
Molecular Formula : C42H43F5N8O9S
Molecular Weight : 930.91