Impurity Standards

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Candesartan EP Impurity E

Product Code:
DH /CNT/1005
Molecular Formula:
C35H38N6O6
CAS Number:
914613-35-7
Molecular Weight:
638.71
Synonyms: 1-(Cyclohexyloxycarbonyloxy)ethyl 1-((2'-(1H-tetrazol-5-yl)biphenyl-4-yl) methyl)-2-hydroxy-1H-benzo[d]imidazole-7-carboxylate


Candesartan EP Impurity F

Product Code:
DH /CNT/1006
Molecular Formula:
C35H38N6O6
CAS Number:
914613-36-8
Molecular Weight:
638.71
Synonyms: 2-Ethoxy-1-[[2'-[2-ethyl-1H-tetrazol-5-yl][1,1'-biphenyl]-4-yl]methyl]-1H-benzimidazole-7-carboxylic acid 1-[[(cyclohexyloxy) carbonyl]oxy]ethyl ester


Candesartan EP Impurity H

Product Code:
DH /CNT/1008
Molecular Formula:
C52H48N6O6
CAS Number:
170791-09-0
Molecular Weight:
852.97
Synonyms: 2-Ethoxy-1-[[2'-[1-(triphenylmethyl)-1H-tetrazol-5-yl][1,1'-biphenyl]-4-yl]methyl]-1H-benzimidazole-7-carboxylic acid 1-[[(cyclohexyloxy) carbonyl]oxy]ethyl ester


Candesartan EP impurity B

Product Code:
DH /CNT/1002
Molecular Formula:
C31H30N6O6
CAS Number:
869631-11-8
Molecular Weight:
582.61
Synonyms: 1-(Cyclohexyloxycarbonyloxy)ethyl 1-((2'-(1H-tetrazol-5-yl)biphenyl-4-yl) methyl)-2-hydroxy-1H-benzo[d]imidazole-7-carboxylate


Carbamazepine EP Impurity A

Product Code:
DH /CBZ/1001
Molecular Formula:
C15H14N2O
CAS Number:
3564-73-6
Molecular Weight:
238.28
Synonyms: 10,11-Dihydro-5H-dibenzo[b,f]azepine-5-carboxamide


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