Impurity Standards

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Azithromycin EP Impurity A

Product Code:
DH /AZT/1001
Molecular Formula:
C37H70N2O12
CAS Number:
76801-85-9
Molecular Weight:
734.96
Synonyms: 9-Deoxo-9a-aza-9a-homo Erythromycin A


Azithromycin EP Impurity B

Product Code:
DH /AZP/1002
Molecular Formula:
C38H72N2O11
CAS Number:
307974-61-4
Molecular Weight:
732.99
Synonyms: : 3-Deoxyazithromycin


Azithromycin EP Impurity C

Product Code:
DH /AZT/1003
Molecular Formula:
C37H70N2O12
CAS Number:
620169-47-3
Molecular Weight:
734.96
Synonyms: 3″-O-Demethyl Azithromycin ; 3″-O-Demethylazithromycin


Azithromycin EP Impurity D

Product Code:
:DH /AZT/1004
Molecular Formula:
C38H72N2O13
CAS Number:
612069-26-8
Molecular Weight:
764.98
Synonyms: 14-Demethyl-14-(hydroxymethyl)azithromycin


Azithromycin EP Impurity E

Product Code:
DH /AZT/1005
Molecular Formula:
C36H68N2O12
CAS Number:
612069-27-9
Molecular Weight:
720.93
Synonyms: Amino Azithromycin ; 3′-(N,N-Didemethyl)azithromycin ;


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