clofarabine and its Impurities
Clofarabine is Food and Drug. It is a cancer medicine that interferes with the growth and spread of cancer cells in the body.. Reference standards of Clofarabine API, and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below


(2R,3R,4S,5R)-5-(6-Amino-2-(((2R,3R,4S)-5-(6-amino-2-chloro-7H-purin-7-yl)-4-Fluoro-2-(Hydroxymethyl)tetrahydrofuran-3-yl)oxy)-9H-purin-9-yl)-4-fluoro-2-(Hydroxymethyl)tetrahydrofuran-3-ol
(2R,3R,4S,5R)-5-(6-Amino-2-(((2R,3R,4S)-5-(6-amino-2-chloro-7H-purin-7-yl)-4-Fluoro-2-(Hydroxymethyl)tetrahydrofuran-3-yl)oxy)-9H-purin-9-yl)-4-fluoro-2-(Hydroxymethyl)tetrahydrofuran-3-ol
Catalogue No.:PA 30 81570
CAS :
NA
Molecular Formula : C20H21ClF2N10O6
Molecular Weight : 570.89


(3R,4R,5S,6S)-6-((2-Chloro-9-((2R,3S,4S,5S)-3-fluoro-4-hydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)-9H-purin-6-yl)amino)-5-fluorotetrahydro-2H-pyran-3,4-diol
(3R,4R,5S,6S)-6-((2-Chloro-9-((2R,3S,4S,5S)-3-fluoro-4-hydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)-9H-purin-6-yl)amino)-5-fluorotetrahydro-2H-pyran-3,4-diol
Catalogue No.:PA 30 81640
CAS :
NA
Molecular Formula : C15H18ClF2N5O6
Molecular Weight : 437.78


N-(4-Amino-2-chloro-6-(((2S,3S,4R,5R)-3-fluoro-4,5-dihydroxytetrahydro-2H-pyran-2-yl)amino)pyrimidin-5-yl)formamide
N-(4-Amino-2-chloro-6-(((2S,3S,4R,5R)-3-fluoro-4,5-dihydroxytetrahydro-2H-pyran-2-yl)amino)pyrimidin-5-yl)formamide
Catalogue No.:PA 30 81660
CAS :
NA
Molecular Formula : C10H13ClFN5O4
Molecular Weight : 321.69


(3R,4R,5S,6S)-6-((2-Chloro-9-((2R,3S,4R,5R)-3-fluoro-4-hydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)-9H-purin-6-yl)amino)-5-fluorotetrahydro-2H-pyran-3,4-diol
(3R,4R,5S,6S)-6-((2-Chloro-9-((2R,3S,4R,5R)-3-fluoro-4-hydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)-9H-purin-6-yl)amino)-5-fluorotetrahydro-2H-pyran-3,4-diol
Catalogue No.:PA 30 81670
CAS :
NA
Molecular Formula : C15H18ClF2N5O6
Molecular Weight : 437.78


(2R,3R,4S,5R)-5-(6-Amino-2-(((2R,3R,4S,5R)-5-(6-amino-2-chloro-9H-purin-9-yl)-4-fluoro-2-(hydroxymethyl)tetrahydrofuran-3-yl)oxy)-9H-purin-9-yl)-4-fluoro-2-(hydroxymethyl)tetrahydrofuran-3-ol
(2R,3R,4S,5R)-5-(6-Amino-2-(((2R,3R,4S,5R)-5-(6-amino-2-chloro-9H-purin-9-yl)-4-fluoro-2-(hydroxymethyl)tetrahydrofuran-3-yl)oxy)-9H-purin-9-yl)-4-fluoro-2-(hydroxymethyl)tetrahydrofuran-3-ol
Catalogue No.:PA 30 0811002
CAS :
1093278-61-5
Molecular Formula : C20H21ClF2N10O6
Molecular Weight : 570.9


2-Chloro-9-[2-deoxy-2-fluoro-5-O-[hydroxy[[hydroxy(phosphonooxy)phosphinyl]oxy]phosphinyl]-B-D-arabinofuranosyl]-9H-purin-6-amine
2-Chloro-9-[2-deoxy-2-fluoro-5-O-[hydroxy[[hydroxy(phosphonooxy)phosphinyl]oxy]phosphinyl]-B-D-arabinofuranosyl]-9H-purin-6-amine
Catalogue No.:PA 30 0811006
CAS :
134646-41-6
Molecular Formula : C10H14ClFN5O12P3
Molecular Weight : 543.61


6-Amino-9-((2R,3R,4R,5R)-3-fluoro-4-hydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)-3,9-dihydro-2H-purin-2-one
6-Amino-9-((2R,3R,4R,5R)-3-fluoro-4-hydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)-3,9-dihydro-2H-purin-2-one
Catalogue No.:PA 30 0811007
CAS :
1668560-69-7
Molecular Formula : C10H12FN5O4
Molecular Weight : 285.24


((2R,3R,4S,5S)-5-(6-Amino-2-Chloro-9H-purin-9-yl)-4-fluoro-3-hydroxytetrahydrofuran-2-yl)methyl benzoate
((2R,3R,4S,5S)-5-(6-Amino-2-Chloro-9H-purin-9-yl)-4-fluoro-3-hydroxytetrahydrofuran-2-yl)methyl benzoate
Catalogue No.:PA 30 0811008
CAS :
796061-24-0
Molecular Formula : C17H15ClFN5O4
Molecular Weight : 407.79


(2R,3R,4S,5R)-5-(2-Chloro-6-(((2S,3S,4R,5R)-3-fluoro-4-hydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)amino)-9H-purin-9-yl)-4-fluoro-2-(hydroxymethyl)tetrahydrofuran-3-ol
(2R,3R,4S,5R)-5-(2-Chloro-6-(((2S,3S,4R,5R)-3-fluoro-4-hydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)amino)-9H-purin-9-yl)-4-fluoro-2-(hydroxymethyl)tetrahydrofuran-3-ol
Catalogue No.:PA 30 0811009
CAS :
1093278-54-6
Molecular Formula : C15H18ClF2N5O6
Molecular Weight : 437.78


(2R,3R,4S,5R)-5-(2-Chloro-6-(((2R,3S,4R,5R)-3-fluoro-4-hydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)amino)-9H-purin-9-yl)-4-fluoro-2-(hydroxymethyl)tetrahydrofuran-3-ol
(2R,3R,4S,5R)-5-(2-Chloro-6-(((2R,3S,4R,5R)-3-fluoro-4-hydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)amino)-9H-purin-9-yl)-4-fluoro-2-(hydroxymethyl)tetrahydrofuran-3-ol
Catalogue No.:PA 30 0811010
CAS :
1093278-53-5
Molecular Formula : C15H18ClF2N5O6
Molecular Weight : 437.78