Impurity Standards

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Atorvastatin Impurity C

Product Code:
DH /ATV/1012
Molecular Formula:
C66H66F4N4O10Ca
CAS Number:
693793-53-2
Molecular Weight:
1191.32
Synonyms: (3R,5R)-7-[3-(Phenylcarbamoyl)-4,5-bis(4-fluorophenyl)-2-isopropyl-1H-pyrrol-1-yl]-3,5-dihydroxyheptanoic acid Calcium salt(2:1)


Atorvastatin Impurity D

Product Code:
DH /ATV/1016
Molecular Formula:
C26H22FNO4
CAS Number:
148146-51-4
Molecular Weight:
431.46
Synonyms: 3-(4-Fluorobenzoyl)-2-isobutyryl-3-phenyloxirane-2-carboxylic acid phenylamide


Atorvastatin Impurity E (ent-Atorvastatin

Product Code:
DH /ATV/1021
Molecular Formula:
C66H68F2N4O10Ca
CAS Number:
501121-34-2
Molecular Weight:
1155.34
Synonyms: (3S,5S)-7-[3-(Phenylcarbamoyl)-5-(4-fluorophenyl)-2-isopropyl-4-phenyl-1H-pyrrol-1-yl]-3,5-dihydroxyheptanoic acid calcium salt (2:1)


Atorvastatin Impurity F

Product Code:
DH /ATV/1010
Molecular Formula:
C80H94F2N6O16Ca
CAS Number:
1105067-87-5
Molecular Weight:
1473.71
Synonyms: (3R,5R)-7 -[7 -[2-( 4-Fluorophenyl)-5-( 1-methylethyl)-3-phenyl-4-phenyl carbamoyl-pyrro l-1-yl]-3,5 -dihydroxy-heptanoylamino ]-3,5 -dihydroxy, heptanoic acid calcium salt


Atorvastatin Impurity G

Product Code:
DH /ATV/1018
Molecular Formula:
C68H72F2N4O10Ca
CAS Number:
887196-29-4
Molecular Weight:
1183.41
Synonyms: (3R,5R)-7 -[2-( 4-Fluorophenyl)-5-( 1-methylethyl)-3-phenyl-4-phenylcarbamoyl- 1H-pyrrol-1-yl]-5-hydroxy-3-methoxyheptanoic acid calcium salt (2: 1)


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