Impurity Standards

IP, USP and EP Compliant

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CEFIXIME

Cefixime EP Impurity C (Cefixime 7-epimer)

CAT No.-
CAS No.108691-83-4
Mol. F.C16H15N5O7S2
Mol. W.453.46
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CEFIXIME

Cefixime EP Impurity D

CAT No.-
CAS No.97164-56-2
Mol. F.C16H15N5O7S2
Mol. W.453.44
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CEFIXIME

Cefixime EP Impurity E

CAT No.-
CAS No.72701-01-0
Mol. F.C15H15N5O7S2
Mol. W.441.43
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CEFDITOREN

Cefditoren impurity 2, Cefditoren open ring

CAT No.-
CAS No.-
Mol. F.C25H30N6O8S3
Mol. W.638.74
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CEFEPIME

Cefepime impurity F

CAT No.-
CAS No.-
Mol. F.C32H42N9O7S3
Mol. W.760.94
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CEFDITOREN

Cefditoren impurity 4, cefditoren △-3 isomer

CAT No.-
CAS No.-
Mol. F.C25H28N6O7S3
Mol. W.620.72
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CEFEPIME

Cefepime impurity F related compound

CAT No.-
CAS No.-
Mol. F.C32H42N9O7S3
Mol. W.760.94
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CEFDITOREN

Cefditoren impurity 5, cefditoren, methoxymethyl

CAT No.-
CAS No.-
Mol. F.C27H32N6O8S3
Mol. W.664.77
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CEFDITOREN

Cefditoren impurity 6, cefditoren E-isomer(C=C)

CAT No.-
CAS No.-
Mol. F.C25H28N6O7S3
Mol. W.620.72
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CEFDITOREN

Cefditoren Impurity 8

CAT No.-
CAS No.-
Mol. F.C30H36N6O8S3
Mol. W.704.84
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