Impurity Standards

IP, USP and EP Compliant

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CEFPODOXIME PROXETIL

Cefpodoxime Proxetil EP Impurity C

CAT No.-
CAS No.339528-86-8
Mol. F.C21H27N5O9S2
Mol. W.557.59
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CEFPODOXIME PROXETIL

Cefpodoxime Proxetil EP Impurity D

CAT No.-
CAS No.947692-13-9
Mol. F.C21H27N5O9S2
Mol. W.557.59
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CEFPODOXIME PROXETIL

Cefpodoxime Proxetil EP Impurity E

CAT No.-
CAS No.217803-89-9
Mol. F.C22H27N5O10S2
Mol. W.585.60
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CEFOXITIN

Cefoxitin impurity E (R-methoxy cefoxitin)

CAT No.-
CAS No.-
Mol. F.C17H19N3O8S2
Mol. W.457.48
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CEFPODOXIME PROXETIL

Cefpodoxime Proxetil EP Impurity F (Mixture ofDiastereomers)

CAT No.-
CAS No.96680-30-7
Mol. F.C22H27N5O10S2
Mol. W.585.60
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CEFOXITIN

Cefoxitin impurity F (S-methoxy cefoxitin)

CAT No.-
CAS No.-
Mol. F.C17H19N3O8S2
Mol. W.457.48
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CEFPODOXIME PROXETIL

Cefpodoxime Proxetil EP Impurity G (Mixture ofDiastereomers)

CAT No.-
CAS No.947692-15-1
Mol. F.C23H29N5O10S2
Mol. W.599.63
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CEFOXITIN

Cefoxitin impurity G (cefoxitin dimer)

CAT No.-
CAS No.-
Mol. F.C31H31N5O13S4
Mol. W.809.87
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CEFPODOXIME PROXETIL

Cefpodoxime Proxetil Impurity I

CAT No.-
CAS No.-
Mol. F.C25H33N5O11S2
Mol. W.643.70
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CEFOXITIN

Cefoxitin impurity A

CAT No.-
CAS No.-
Mol. F.C15H16N2O6S2
Mol. W.384.43
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