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Dhamtec Pharma and Consultants-

Impurity Standards

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Chlorthalidone Impurity A

Product Code:
DH /CHN/1001		Molecular Formula:
C14H9ClO6S
CAS Number:
NA		Molecular Weight:
340.74
Synonyms: 2-(4-Chloro-3-sulfobenzoyl)benzoic acid


Chlorthalidone Impurity B

Product Code:
DH /CHN/1002		Molecular Formula:
C14H10ClNO5S
CAS Number:
5270-74-6		Molecular Weight:
339.75
Synonyms: 2-[3-(Aminosulfonyl)-4-chlorobenzoyl]-benzoic acid


Chlorthalidone Impurity C

Product Code:
DH /CHN/1003		Molecular Formula:
C16H14ClNO5S
CAS Number:
92874-73-2		Molecular Weight:
367.8
Synonyms: 2-[3-(Aminosulfonyl)-4-chlorobenzoyl]-benzoic acid ethyl ester


Chlorthalidone Impurity D

Product Code:
DH /CHN/1004		Molecular Formula:
C16H15ClN2O4S
CAS Number:
1369995-36-7		Molecular Weight:
366.82
Synonyms: 2-Chloro-5[(1RS)-1-ethoxy-3-oxo-2,3-dihydro-1H-isoindol-1-yl]benzene sulfonamide


Chlorthalidone Impurity E

Product Code:
DH /CHN/1005		Molecular Formula:
C14H11ClN2O3S
CAS Number:
82875-49-8		Molecular Weight:
322.77
Synonyms: 2-Chloro-5-(3-oxo-1-isoindolinyl)benzene sulfonamide


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