Impurity Standards

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Albendazole EP Impurity G

Product Code:
DH / ALB/1007
Molecular Formula:
C13H17N3O2S
CAS Number:
139751-05-6
Molecular Weight:
279.36
Synonyms: Ethyl [5-(propylsulfanyl)-1H-benzimidazol-2-yl]carbamate


Albendazole EP Impurity H

Product Code:
DH / ALB/1008
Molecular Formula:
C9H8ClN3O2
CAS Number:
20367-38-8
Molecular Weight:
225.63
Synonyms: Methyl (5-chloro-1H-benzimidazol-2-yl)carbamate


Amlodipine EP Impurity A

Product Code:
DH/ADP/1001
Molecular Formula:
C28H27ClN2O
CAS Number:
88150-62-3
Molecular Weight:
538.98
Synonyms: 3-Ethyl 5-methyl (4RS)-4-(2-chlorophenyl)-2-[[2-(1,3-dioxo-1,3-dihydro-2H-isoindol-2-yl)ethoxy]methyl]-6-methyl-1,4-dihydropyridine-3,5-dicarboxylate


Amlodipine EP Impurity B

Product Code:
DH/ADP/1002
Molecular Formula:
C29H32ClN3O7
CAS Number:
721958-72-1
Molecular Weight:
570.03
Synonyms: 3-Ethyl 5-methyl 4-(2-chlorophenyl)-6-methyl-2-[[2- [[2-(methylcarbamoyl)benzoyl]amino]ethoxy]methyl]-1,4- dihydropyridine-3,5-dicarboxylate


Amlodipine EP Impurity C

Product Code:
DH/ADP/1003
Molecular Formula:
C22H30ClN3O6
CAS Number:
721958-74-3
Molecular Weight:
467.94
Synonyms: Ethyl methyl 2,6-bis[(2-aminoethoxy)methyl]-4-(2- chlorophenyl)-1,4-dihydropyridine-3,5-dicarboxylate


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