itraconazole and its Impurities
Itraconazole is an antifungal medication. Itraconazole tablets and capsules are used to treat fungal infections of the toenails. Reference standards of Itraconazole API,and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below.
 
	
			                                   
																				Itraconazole - Impurity C
4-[4-[4-[4-[[cis-2-(2,4-Dichlorophenyl)-2-(1H-1,2,4-triazol-1-ylmethyl)-1,3-dioxolan-4-yl]methoxy]phenyl]piperazin-1-yl]phenyl]-2-propyl-2,4-dihydro-3H-1,2,4-triazol-3-one
- Catalogue No.:PA 09 21030 
- CAS : - 74855-91-7
- Molecular Formula : C34H36Cl2N8O4 
- Molecular Weight : 691.61 
 
	
			                                   
																				Itraconazole - Impurity D
4-[4-[4-[4-[[cis-2-(2,4-Dichlorophenyl)-2-(1H-1,2,4-triazol-1-ylmethyl)-1,3-dioxolan-4-yl]methoxy]phenyl]piperazin-1-ylphenyl]-2-(1-methylethyl)-2,4-dihydro-3H-1,2,4-triazol3-one
- Catalogue No.:PA 09 21040 
- CAS : - 89848-49-7
- Molecular Formula : C34H36Cl2N8O4 
- Molecular Weight : 691.61 
 
	
			                                   
																				Itraconazole - Impurity F
2-Butyl-4-[4-[4-[4-[[cis-2-(2,4-dichlorophenyl)-2-(1H-1,2,4-triazol-1-ylmethyl)-1,3-dioxolan-4-yl]methoxy]phenyl]piperazin-1-yl]phenyl]-2,4-dihydro-3H1,2,4-triazol-3-one
- Catalogue No.:PA 09 21060 
- CAS : - 89848-51-1
- Molecular Formula : C35H38Cl2N8O4 
- Molecular Weight : 705.63 
 
	
			                                   
																				Itraconazole - Impurity G (BP)
4-[4-[4-[4-[[cis-2-(2,4-Dichlorophenyl)-2-(1H-1,2,4-triazol-1-ylmethyl)-1,3-dioxolan-4-yl]methoxy]phenyl]piperazin-1-yl]phenyl]-2-[[cis-2-(2,4-dichlorophenyl)-2-(1H-1,2,4-triazol-1-ylmethyl)-1,3-dioxolan-4-yl]methyl]-2,4-dihydro-3H-1,2,4-triazol-3-one
- Catalogue No.:PA 09 21070 
- CAS : - NA
- Molecular Formula : C44H41Cl4N11O6 
- Molecular Weight : 961.68 
 
	
			                                   
																				2-(2-Butyl-d3)-4-{4-[4-(4-methyloxy-phenyl)-piperazin-1-yl]-phenyl}-2,4-dihydro-[1,2,4]-triazol-3-one
2-(2-Butyl-d3)-4-{4-[4-(4-methyloxy-phenyl)-piperazin-1-yl]-phenyl}-2,4-dihydro-[1,2,4]-triazol-3-one
- Catalogue No.:PA STI 016580 
- CAS : - 2714408-55-4
- Molecular Formula : C23H26D3N5O2 
- Molecular Weight : 410.53 
 
	
			                                   
																				2-(sec-Butyl)-4-(4-(4-(4-hydroxyphenyl)piperazin-1-yl)phenyl)-2,4-dihydro-3H-1,2,4-triazol-3-one
2-(sec-Butyl)-4-(4-(4-(4-hydroxyphenyl)piperazin-1-yl)phenyl)-2,4-dihydro-3H-1,2,4-triazol-3-one
- Catalogue No.:PA 09 21520 
- CAS : - 106461-41-0
- Molecular Formula : C22H27N5O2 
- Molecular Weight : 393.49 
 
	
			                                   
																				cis-[2-(2,4-Dichlorophenyl)-2-(1H-1,2,4-triazol-1-yl-methyl)-1,3-dioxolan-4-yl]methyl Methanesulfonate
cis-[2-(2,4-Dichlorophenyl)-2-(1H-1,2,4-triazol-1-yl-methyl)-1,3-dioxolan-4-yl]methyl Methanesulfonate
- Catalogue No.:PA 09 21540 
- CAS : - 67914-86-7
- Molecular Formula : C14H15Cl2N3O5S 
- Molecular Weight : 408.25 
 
	
			                                   
																				N-(4-((2-((1H-1,2,4-Triazol-1-yl)methyl)-2-(2,4-dichlorophenyl)-1,3-dioxolan-4-yl)methoxy)phenyl)-N-(2-(N-(4-(1-(sec-butyl)-5-oxo-1,5-dihydro-4H-1,2,4-triazol-4-yl)phenyl)formamido)ethyl)formamide
N-(4-((2-((1H-1,2,4-Triazol-1-yl)methyl)-2-(2,4-dichlorophenyl)-1,3-dioxolan-4-yl)methoxy)phenyl)-N-(2-(N-(4-(1-(sec-butyl)-5-oxo-1,5-dihydro-4H-1,2,4-triazol-4-yl)phenyl)formamido)ethyl)formamide
- Catalogue No.:PA 09 21580 
- CAS : - NA
- Molecular Formula : C35H36Cl2N8O6 
- Molecular Weight : 735.62 
 
	
			                                   
																				N-(4-(4-(4-(((2R,4S)-2-((1H-1,2,4-Triazol-1-yl)methyl)-2-(2,4-dichlorophenyl)-1,3-dioxolan-4-yl)methoxy)phenyl)piperazin-1-yl)phenyl)hydrazinecarboxamide
N-(4-(4-(4-(((2R,4S)-2-((1H-1,2,4-Triazol-1-yl)methyl)-2-(2,4-dichlorophenyl)-1,3-dioxolan-4-yl)methoxy)phenyl)piperazin-1-yl)phenyl)hydrazinecarboxamide
- Catalogue No.:PA 09 21560 
- CAS : - 89848-13-5
- Molecular Formula : C30H32Cl2N8O4 
- Molecular Weight : 639.53 
 
	
			                                   
																				(4-(4-(4-(((2R,4S)-2-((1H-1,2,4-Triazol-1-yl)methyl)-2-(2,4-dichlorophenyl)-1,3-dioxolan-4-yl)methoxy)phenyl)piperazin-1-yl)phenyl)carbamic Acid Phenyl Ester
(4-(4-(4-(((2R,4S)-2-((1H-1,2,4-Triazol-1-yl)methyl)-2-(2,4-dichlorophenyl)-1,3-dioxolan-4-yl)methoxy)phenyl)piperazin-1-yl)phenyl)carbamic Acid Phenyl Ester
- Catalogue No.:PA 09 21570 
- CAS : - 89848-11-3
- Molecular Formula : C36H34Cl2N6O5 
- Molecular Weight : 701.6 
 
	
			                                   
																				1,3-Dioxolane-4-methanol, 2-(2,4-dichlorophenyl)-2-(1H-1,2,4-triazol-1-ylmethyl)-, 4-methanesulfonate, (2R,4S)-rel-
1,3-Dioxolane-4-methanol, 2-(2,4-dichlorophenyl)-2-(1H-1,2,4-triazol-1-ylmethyl)-, 4-methanesulfonate, (2R,4S)-rel-
- Catalogue No.:PA 09 0211003 
- CAS : - 854372-78-4
- Molecular Formula : C14H15Cl2N3O5S 
- Molecular Weight : 408.25 
 
	
			                                   
																				2-(Sec-Butyl)-4-(4-((2-((4-(((2R,4R)-2-((R)-(2,4-dichlorophenyl)(1H-1,2,4-triazol-1-yl)methyl)-1,3-dioxolan-4-yl)methoxy)phenyl)amino)ethyl)amino)phenyl)-2,4-dihydro-3H-1,2,4-triazol-3-one
2-(Sec-Butyl)-4-(4-((2-((4-(((2R,4R)-2-((R)-(2,4-dichlorophenyl)(1H-1,2,4-triazol-1-yl)methyl)-1,3-dioxolan-4-yl)methoxy)phenyl)amino)ethyl)amino)phenyl)-2,4-dihydro-3H-1,2,4-triazol-3-one
- Catalogue No.:PA 09 0211009 
- CAS : - NA
- Molecular Formula : C33H36Cl2N8O4 
- Molecular Weight : 679.6 
 
	
			                                   
																				4-(4-(4-(4-((2-((1H-1,2,4-Triazol-1-yl)methyl)-2-(2,4-dichlorophenyl)-1,3-dioxolan-4-yl)methoxy)phenyl)piperazin-1-yl)phenyl)-2-(sec-butyl)-2,4-dihydro-3H-1,2,4-triazol-3-one
4-(4-(4-(4-((2-((1H-1,2,4-Triazol-1-yl)methyl)-2-(2,4-dichlorophenyl)-1,3-dioxolan-4-yl)methoxy)phenyl)piperazin-1-yl)phenyl)-2-(sec-butyl)-2,4-dihydro-3H-1,2,4-triazol-3-one
- Catalogue No.:PA 09 0211014 
- CAS : - 2049588-24-9
- Molecular Formula : C35H38Cl2N8O4 
- Molecular Weight : 705.64 
 
	
			                                   
																				4-(4-(4-(4-((2-((1H-1,2,4-Triazol-1-yl)methyl)-2-(2,4-dichlorophenyl)-1,3-dioxolan-4-yl)methoxy)phenyl)piperazin-1-yl)phenyl)-2-propyl-2,4-dihydro-3H-1,2,4-triazol-3-one
4-(4-(4-(4-((2-((1H-1,2,4-Triazol-1-yl)methyl)-2-(2,4-dichlorophenyl)-1,3-dioxolan-4-yl)methoxy)phenyl)piperazin-1-yl)phenyl)-2-propyl-2,4-dihydro-3H-1,2,4-triazol-3-one
- Catalogue No.:PA 09 0211013 
- CAS : - 1893435-06-7
- Molecular Formula : C34H36Cl2N8O4 
- Molecular Weight : 691.61 
 
	
			                                   
																				4-(4-(3-(4-(((2R,4S)-2-((1H-1,2,4-Triazol-1-yl)methyl)-2-(2,4-dichlorophenyl)-1,3-dioxolan-4-yl)methoxy)phenyl)-2,3-dihydro-1H-imidazol-1-yl)phenyl)-2-(sec-butyl)-2,4-dihydro-3H-1,2,4-triazol-3-one and Enatiomer
4-(4-(3-(4-(((2R,4S)-2-((1H-1,2,4-Triazol-1-yl)methyl)-2-(2,4-dichlorophenyl)-1,3-dioxolan-4-yl)methoxy)phenyl)-2,3-dihydro-1H-imidazol-1-yl)phenyl)-2-(sec-butyl)-2,4-dihydro-3H-1,2,4-triazol-3-one and Enatiomer
- Catalogue No.:PA 09 0211019 
- CAS : - NA
- Molecular Formula : C34H34Cl2N8O4 
- Molecular Weight : 689.6 
 
	
			                                   
																				4-(4-(4-(4-(((2R,4S)-2-((1H-1,2,4-Triazol-1-yl)methyl)-2-(2,4-dichlorophenyl)-1,3-dioxolan-4-yl)methoxy)phenyl)piperazin-1-yl)phenyl)-2-(prop-1-en-2-yl)-2,4-dihydro-3H-1,2,4-triazol-3-one
4-(4-(4-(4-(((2R,4S)-2-((1H-1,2,4-Triazol-1-yl)methyl)-2-(2,4-dichlorophenyl)-1,3-dioxolan-4-yl)methoxy)phenyl)piperazin-1-yl)phenyl)-2-(prop-1-en-2-yl)-2,4-dihydro-3H-1,2,4-triazol-3-one
- Catalogue No.:PA 09 0211017 
- CAS : - NA
- Molecular Formula : C34H34Cl2N8O4 
- Molecular Weight : 689.6 
 
	
			                                   
																				rel-((2R,4S)-2-((1H-1,2,4-Triazol-1-yl)methyl)-2-(2,4-dichlorophenyl)-1,3-dioxolan-4-yl)methanol
rel-((2R,4S)-2-((1H-1,2,4-Triazol-1-yl)methyl)-2-(2,4-dichlorophenyl)-1,3-dioxolan-4-yl)methanol
- Catalogue No.:PA 09 0211016 
- CAS : - 67914-85-6
- Molecular Formula : C13H13Cl2N3O3 
- Molecular Weight : 330.17 
 
	
			                                   
																				((2S,4R)-2-((1H-1,2,4-Triazol-1-yl)methyl)-2-(2,4-dichlorophenyl)-1,3-dioxolan-4-yl)methanol
((2S,4R)-2-((1H-1,2,4-Triazol-1-yl)methyl)-2-(2,4-dichlorophenyl)-1,3-dioxolan-4-yl)methanol
- Catalogue No.:PA 09 0211015 
- CAS : - 172587-60-9
- Molecular Formula : C13H13Cl2N3O3 
- Molecular Weight : 330.17 
 
	
			                                   
																				4-(4-(3-(4-((2-((1H-1,2,4-Triazol-1-yl)methyl)-2-(2,4-dichlorophenyl)-1,3-dioxolan-4-yl)methoxy)phenyl)-2,3-dihydro-1H-imidazol-1-yl)phenyl)-2-(sec-butyl)-2,4-dihydro-3H-1,2,4-triazol-3-one
4-(4-(3-(4-((2-((1H-1,2,4-Triazol-1-yl)methyl)-2-(2,4-dichlorophenyl)-1,3-dioxolan-4-yl)methoxy)phenyl)-2,3-dihydro-1H-imidazol-1-yl)phenyl)-2-(sec-butyl)-2,4-dihydro-3H-1,2,4-triazol-3-one
- Catalogue No.:PA 09 0211020 
- CAS : - NA
- Molecular Formula : C34H34Cl2N8O4 
- Molecular Weight : 689.6 
 
	
			                                   
																				4-(4-(4-(4-((2-((1H-1,2,4-Triazol-1-yl)methyl)-2-(2,4-dichlorophenyl)-1,3-dioxolan-4-yl)methoxy)phenyl)piperazin-1-yl)phenyl)-2-(prop-1-en-2-yl)-2,4-dihydro-3H-1,2,4-triazol-3-one
4-(4-(4-(4-((2-((1H-1,2,4-Triazol-1-yl)methyl)-2-(2,4-dichlorophenyl)-1,3-dioxolan-4-yl)methoxy)phenyl)piperazin-1-yl)phenyl)-2-(prop-1-en-2-yl)-2,4-dihydro-3H-1,2,4-triazol-3-one
- Catalogue No.:PA 09 0211026 
- CAS : - NA
- Molecular Formula : C34H34Cl2N8O4 
- Molecular Weight : 689.6 
 
	
			                                   
																				1-(4-(((2R,4S)-2-((1H-1,2,4-triazol-1-yl)Methyl)-2-(2,4-dichlorophenyl)-1,3-dioxolan-4-yl)methoxy)phenyl)-4-nitrosopiperazine;
1-(4-(((2R,4S)-2-((1H-1,2,4-triazol-1-yl)Methyl)-2-(2,4-dichlorophenyl)-1,3-dioxolan-4-yl)methoxy)phenyl)-4-nitrosopiperazine;
- Catalogue No.:PA 09 0211028 
- CAS : - NA
- Molecular Formula : C23H24Cl2N6O4 
- Molecular Weight : 519.38 
 
	
			                                   
																				rel-1-(4-(((2R,4S)-2-((1H-1,2,4-Triazol-1-yl)methyl)-2-(2,4-dichlorophenyl)-1,3-dioxolan-4-yl)methoxy)phenyl)-4-(4-(1-(sec-butyl)-5-oxo-1,5-dihydro-4H-1,2,4-triazol-4-yl)phenyl)piperazine 1,4-dioxide
rel-1-(4-(((2R,4S)-2-((1H-1,2,4-Triazol-1-yl)methyl)-2-(2,4-dichlorophenyl)-1,3-dioxolan-4-yl)methoxy)phenyl)-4-(4-(1-(sec-butyl)-5-oxo-1,5-dihydro-4H-1,2,4-triazol-4-yl)phenyl)piperazine 1,4-dioxide
- Catalogue No.:PA 09 0211030 
- CAS : - 2676158-11-3
- Molecular Formula : C35H38Cl2N8O6 
- Molecular Weight : 737.64 

 
																				 
																				 
																				 
																				 
																				 
																				 
																				 
																				 
																				 
																				 
																				 
																				 
																				 
																				 
																				 
																				 
																				 
																				 
																				 
																				 
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