Cephalosporin Impurity 9
CAS Number: 234096-34-5
Molecular Formula: C17H19N5O6S2
Molecular Weight: 453.49

Cephalosporin Impurity 8
CAS Number: 104758-14-7
Molecular Formula: C15H14N2O6S2
Molecular Weight: 382.41

Cephalosporin Impurity 7
CAS Number: 51813-38-8
Molecular Formula: C8H9ClN2O3S
Molecular Weight: 248.69

Cephalosporin Impurity 6
CAS Number: 1269661-24-6
Molecular Formula: C24H22Cl2N2O5S
Molecular Weight: 521.41

Cephalosporin Impurity 5
CAS Number: 1269661-23-5
Molecular Formula: C24H23ClN2O5S
Molecular Weight: 486.97

Cephalosporin Impurity 4
CAS Number: 29126-11-2
Molecular Formula: C24H24N2O5S
Molecular Weight: 452.53

Cephalosporin Impurity 3 HCl
CAS Number: 2429-86-9
Molecular Formula: C14H17N3O6S. HCl
Molecular Weight: 355.37 ：36.46

Deacetylcephalosporin C
CAS Number: 1476-46-6
Molecular Formula: C14H19N3O7S
Molecular Weight: 373.38