Impurity Standards

IP, USP and EP Compliant

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CEFADROXIL

Cefadroxil EP Impurity D

CAT No.-

CAS No.144790-28-3

Mol. F.C16H17N3O5S

Mol. W.363.39

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CEFADROXIL

Cefadroxil Impurity J

CAT No.-

CAS No.-

Mol. F.C18H19N3O7S

Mol. W.421.43

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CEFADROXIL

Cefadroxil EP Impurity F Sodium Salt (Mixture ofDiastereomers)

CAT No.-

CAS No.-

Mol. F.C24H23N4O7S. Na

Mol. W.511.54 22.99

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CEFACLOR

Cefaclor impurity E

CAT No.-

CAS No.-

Mol. F.C14H14ClN3O4S

Mol. W.355.80

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CEFADROXIL

Cefadroxil Monohydrate EP Impurity C

CAT No.-

CAS No.-

Mol. F.C16H19N3O6S

Mol. W.381.41

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CEFACLOR

Cefaclor EP Impurity C HCl

CAT No.-

CAS No.143059-69-2 (freebase)

Mol. F.C15H14ClN3O4S. HCl

Mol. W.367.81 36.46

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CEFADROXIL

Cefadroxil Impurity 1 (Methyl (2R)-2-Amino-2-(4-Hydroxyphenyl)acetate)

CAT No.-

CAS No.37763-23-8

Mol. F.C9H11NO3

Mol. W.181.19

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CEFACLOR

Cefaclor EP Impurity G

CAT No.-

CAS No.N/A

Mol. F.C16H17N3O4S

Mol. W.347.40

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CEFADROXIL

Cefadroxil Impurity 2 [Methyl (2S)-2-Amino-2-(4-Hydroxyphenyl)acetate]

CAT No.-

CAS No.26531-82-8

Mol. F.C9H11NO3

Mol. W.181.19

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CEFACLOR

Cefaclor EP Impurity H

CAT No.-

CAS No.N/A

Mol. F.C23H21ClN4O5S

Mol. W.500.96

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