Impurity Standards

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Quetiapine EP Impurity A

Product Code:
DH/QTP/1007
Molecular Formula:
C50H58N6O10S2
CAS Number:
844639-07-2
Molecular Weight:
967.16
Synonyms: 2-[2-[4-(dibenzo[b,f][1,4]thiazepin-11-yl)piperazin-1-yl]ethoxy]ethylacetatefumarate


Quetiapine EP Impurity B

Product Code:
DH/QTP/1004
Molecular Formula:
C38H38N6O4S2
CAS Number:
5747-48-8
Molecular Weight:
706.87
Synonyms: 11-Piperazin-1-yl-dibenzo[b,f][1,4]thiazepine hemifumarate


Quetiapine EP Impurity C

Product Code:
DH/QTP/1008
Molecular Formula:
C40H42N6O3S2
CAS Number:
1798840-31-9
Molecular Weight:
718.93
Synonyms: 2-(2-(4-(Dibenzo[b,f][1,4]thiazepin-11-yl)piperazin-1-yl)ethoxy)ethyl 2-(4-(dibenzo[b,f][1,4]thiazepin-11-yl)piperazin-1-yl)acetate


Quetiapine EP Impurity D

Product Code:
DH/QTP/1009
Molecular Formula:
C30H24N4S2
CAS Number:
945668-94-0
Molecular Weight:
504.67
Synonyms: 1,4-bis(Dibenzo[b,f][1,4]thiazepine-11-yl)piperazine


Quetiapine EP Impurity E

Product Code:
DH/QTP/1010
Molecular Formula:
C40H44N6O2S2
CAS Number:
1371638-05-9
Molecular Weight:
704.95
Synonyms: 1,2-bis[2-(4-Dibenzo [b,f] [1,4]thiazepin-11-yl-1-piperazinyl)ethoxy]ethane


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