Impurity Standards

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Bupropion USP Related Compound F

Product Code:
DH /BPN/1006
Molecular Formula:
C9H9ClO2
CAS Number:
857233-13-7
Molecular Weight:
184.62
Synonyms: 1-(3-Chlorophenyl)-1-hydroxy-2-propanone


Candesartan EP Impurity A

Product Code:
DH /CNT/1001
Molecular Formula:
C26H24N6O3
CAS Number:
139481-58-6
Molecular Weight:
468.51
Synonyms: 2-Ethoxy-1-[[2-[1-(triphenylmethyl)-1H-tetrazol-5-yl][1,1?-biphenyl]-4-yl]methyl]-1H-benzimidazole-7-carboxylic Acid ethyl ester


Candesartan EP Impurity C

Product Code:
DH /CNT/1003
Molecular Formula:
C33H34N6O6
CAS Number:
1185255-99-5
Molecular Weight:
610.66
Synonyms: : (1RS)-1-[[(Cyclohexyloxy)carbonyl]oxy]ethyl 3-[[2′-(1-ethyl-1H-tetrazol-5-yl)biphenyl-4-yl]methyl]-2-oxo-2,3-dihydro-1H-benzimidazole-4-carboxylate


Candesartan EP Impurity D

Product Code:
DH /CNT/1004
Molecular Formula:
C33H34N6O6
CAS Number:
1185256-03-4
Molecular Weight:
610.66
Synonyms: : (1RS)-1-[[(Cyclohexyloxy)carbonyl]oxy]ethyl 3-[[2′-(2-ethyl-2H-tetrazol-5-yl)biphenyl-4-yl]methyl]-2-oxo-2,3-dihydro-1H-benzimidazole-4-carboxylate.


Candesartan EP Impurity G

Product Code:
DH /CNT/1007
Molecular Formula:
C24H20N6O3
CAS Number:
139481-59-7
Molecular Weight:
440.45
Synonyms: 2-Ethoxy-3-[[4-[2-(1H-tetrazol-5-yl)phenyl]phenyl] methyl]-3H-benzoimidazole-4-carboxylic acid.


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