ceftizoxime and its Impurities
Ceftizoxime is a third-generation cephalosporin available for parenteral administration. It is a group of drugs. It is used to treat many kinds of bacterial infections, including severe or life-threatening forms.. Reference standards of Ceftizoxime API, and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below


(6R,7R)-7-((Z)-2-(2-((Z)-2-(2-Aminothiazol-4-yl)-2-(methoxyimino)acetamido)thiazol-4-yl)-2-(methoxyimino)acetamido)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic Acid
(6R,7R)-7-((Z)-2-(2-((Z)-2-(2-Aminothiazol-4-yl)-2-(methoxyimino)acetamido)thiazol-4-yl)-2-(methoxyimino)acetamido)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic Acid
Catalogue No.:PA 30 47530
CAS :
929101-93-9
Molecular Formula : C19H18N8O7S3
Molecular Weight : 566.58


(6R,7R)-7-((6R,7R)-7-Amino-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxamido)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic Acid
(6R,7R)-7-((6R,7R)-7-Amino-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxamido)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic Acid
Catalogue No.:PA 30 47540
CAS :
NA
Molecular Formula : C14H14N4O5S2
Molecular Weight : 382.41


(6R,7R)-7-((Z)-2-(2-Aminothiazol-4-yl)-2-(methoxyimino)acetamido)-8-oxo-5-thia-1-azabicyclo[4.2.0]octane-2-carboxylic acid
(6R,7R)-7-((Z)-2-(2-Aminothiazol-4-yl)-2-(methoxyimino)acetamido)-8-oxo-5-thia-1-azabicyclo[4.2.0]octane-2-carboxylic acid
Catalogue No.:PA 30 0471001
CAS :
929101-89-3
Molecular Formula : C13H15N5O5S2
Molecular Weight : 385.41


(Z)-2-(2-Aminothiazol-4-yl)-2-(methoxyimino)-N-((6R,7R)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-en-7-yl)acetamide
(Z)-2-(2-Aminothiazol-4-yl)-2-(methoxyimino)-N-((6R,7R)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-en-7-yl)acetamide
Catalogue No.:PA 30 0471003
CAS :
NA
Molecular Formula : C12H13N5O3S2
Molecular Weight : 339.39


(Z)-2-((2-(2-Aminothiazol-4-yl)-2-(methoxyimino)acetamido)methyl)-3,6-dihydro-2H-1,3-thiazine-4-carboxylic Acid
(Z)-2-((2-(2-Aminothiazol-4-yl)-2-(methoxyimino)acetamido)methyl)-3,6-dihydro-2H-1,3-thiazine-4-carboxylic Acid
Catalogue No.:PA 30 0471004
CAS :
NA
Molecular Formula : C12H15N5O4S2
Molecular Weight : 357.4


(6R,7R)-7-((6R,7R)-7-((Z)-2-(2-Aminothiazol-4-yl)-2-(methoxyimino)acetamido)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxamido)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic Acid
(6R,7R)-7-((6R,7R)-7-((Z)-2-(2-Aminothiazol-4-yl)-2-(methoxyimino)acetamido)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxamido)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic Acid
Catalogue No.:PA 30 0471005
CAS :
929101-91-7
Molecular Formula : C20H19N7O7S3
Molecular Weight : 565.59