Dhamtec Pharma and Consultants-
Dhamtec Pharma and Consultants-

Impurity Standards

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Atenolol EP Impurity F

Product Code:
DH / ATL/1006		Molecular Formula:
C25H35N3O6
CAS Number:
87619-83-8		Molecular Weight:
473.56
Synonyms: 2,2'-[(1-Methylethyl)iminobis(2-hydroxypropan-3,1-diyloxy-4,1-phenylene)]diacetamide


Atenolol EP Impurity E

Product Code:
DH /ATL/1005		Molecular Formula:
C19H22N2O3
CAS Number:
N/A		Molecular Weight:
NA
Synonyms: 2,2'-[2-Hydroxypropan-1,3-diylbis(oxy-4,1-phenylene)]diacetamide


Atenolol EP Impurity F

Product Code:
DH /ATL/1006		Molecular Formula:
C25H35N3O6
CAS Number:
87619-83-8		Molecular Weight:
473.56
Synonyms: 2,2'-[(1-Methylethyl)iminobis(2-hydroxypropan-3,1-diyloxy-4,1-phenylene)]diacetamide


Atorvastatin Impurity A

Product Code:
DH /ATV/1019		Molecular Formula:
C66H70CaN4O10
CAS Number:
433289-83-9		Molecular Weight:
1119.36
Synonyms: (3R,5R)-7-[3-(Phenylcarbamoyl)-5-phenyl-2-isopropyl-4-phenyl-1H-pyrrol-1-yl]-3,5-dihydroxyheptanoic acid Calcium salt (2:1)


Atorvastatin Impurity B

Product Code:
DH /ATV/1007		Molecular Formula:
C66H68F2N4O10Ca
CAS Number:
887196-25-0		Molecular Weight:
1155.34
Synonyms: (3S,5R)-7-[3-(Phenylcarbamoyl)-5-(4-fluorophenyl)-2-isopropyl-4-phenyl-1H-pyrrol-1-yl]-3,5-dihydroxyheptanoic acid calcium salt(2:1)


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