Impurity Standards

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Quetiapine EP Impurity L

Product Code:
DH/QTP/1003
Molecular Formula:
C21H24ClN3O2S
CAS Number:
1371638-11-7
Molecular Weight:
417.95
Synonyms: 2-[2-[4-(9-chlorodibenzo[b,f][1,4]thiazepine-11-yl)piperazin-1-yl]ethoxy]ethanol


Quetiapine EP Impurity P

Product Code:
DH/QTP/1013
Molecular Formula:
C19H21N3S
CAS Number:
1011758-03-4
Molecular Weight:
323.46
Synonyms: 11-(4-Ethylpiperazin-1-yl)dibenzo[b,f][1,4]thiazepine


Quetiapine Impurity N-Oxide Sulfoxide

Product Code:
DH/QTP/1001
Molecular Formula:
C21H25N3O4S
CAS Number:
N/A
Molecular Weight:
415.51
Synonyms: [2-{2-[4-(5-Oxo-5H-5?4-dibenzo[b,f][1,4]thiazepin-1-yl)-1-oxy-piperazine-11-yl]-ethoxy}-ethanol


Rabeprazole EP Impurity A

Product Code:
DH/RBR/1005
Molecular Formula:
C18H21N3O4S
CAS Number:
117976-47-3
Molecular Weight:
375.44
Synonyms: Rabeprazole USP Related Compound D ; Rabeprazole Sulfone ; 2-[[4-(3-Methoxypropoxy)-3-methyl-pyridin-2-yl]methylsulfonyl]benzoimidazole


Rabeprazole EP Impurity B

Product Code:
DH/RBR/1006
Molecular Formula:
C18H21N3O2S
CAS Number:
117977-21-6
Molecular Weight:
343.44
Synonyms: Rabeprazole USP Related Compound E ; Rabeprazole Sulfide ; 2-[[4-(3-Methoxypropoxy)-3-methyl-pyridin-2-yl]methylthio]benzoimidazole


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