Impurity Standards

IP, USP and EP Compliant

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CEFTRIAXONE

Ceftriaxone Impurity 4

CAT No.-
CAS No.-
Mol. F.C24H20N11Na3O10S4
Mol. W.819.70
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CEFUROXIME

Cefuroxime Sodium Salt (Cefuroxime AxetilImpurity D Sodium Salt)

CAT No.-
CAS No.56238-63-2
Mol. F.C16H15N4O8S. Na
Mol. W.423.38 22.99
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CEFUROXIME

Cefuroxime Axetil delta-3 Isomer (Impurity A)

CAT No.-
CAS No.N/A
Mol. F.C20H22N4O10S
Mol. W.510.48
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CEFUROXIME

Cefuroxime Impurity B

CAT No.-
CAS No.-
Mol. F.C20H22N4O10S
Mol. W.510.48
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CEFUROXIME

Cefuroxime Impurity C

CAT No.-
CAS No.-
Mol. F.C18H15Cl3N4O9S
Mol. W.569.76
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CEFUROXIME

Cefuroxime Axetil EP Impurity E

CAT No.-
CAS No.947723-87-7
Mol. F.C15H13N3O6S
Mol. W.363.34
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CEFUROXIME

Cefuroxime EP Impurity A (CefuroximeDescarbamoyl)

CAT No.-
CAS No.56271-94-4
Mol. F.C15H15N3O7S
Mol. W.381.36
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CEFTIZOXIME

Ceftizoxime Impurity (Z isomer Ring -Opening)

CAT No.-
CAS No.-
Mol. F.C13H15N5O6S2
Mol. W.401.42
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CEFTIZOXIME

Ceftizoxime Impurity 6

CAT No.-
CAS No.-
Mol. F.C13H15N5O6S2 . 2 Na
Mol. W.401.42 2x22.99
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CEFTIZOXIME

Ceftizoxime Impurity 7

CAT No.-
CAS No.-
Mol. F.C13H13N5O5S2
Mol. W.383.41
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