ceftriaxone and its Impurities
A broad spectrum cephalosporin antibiotic, it is used for the treatment of meninges, eyes and inner ears infections. It has a very high half life period. Ceftriaxone sodium inhibits inhibits the cell wall synthesis resulting in cell lysis. Reference standards of Ceftriaxone API,and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below.


(R)-5-(Acetoxymethyl)-2-((R)-((Z)-2-(2-((((6R,7R)-7-((Z)-2-(2-aminothiazol-4-yl)-2-(methoxyimino)acetamido)-2-(methoxycarbonyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-en-3-yl)methyl)amino)thiazol-4-yl)-2-(methoxyimino)acetamido)(carboxy)methyl)-3,6-dihydro-2H-1,3-thiazine-4-carboxylic Acid
(R)-5-(Acetoxymethyl)-2-((R)-((Z)-2-(2-((((6R,7R)-7-((Z)-2-(2-aminothiazol-4-yl)-2-(methoxyimino)acetamido)-2-(methoxycarbonyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-en-3-yl)methyl)amino)thiazol-4-yl)-2-(methoxyimino)acetamido)(carboxy)methyl)-3,6-dihydro-2H-1,3-thiazine-4-carboxylic Acid
Catalogue No.:PA 82 0221002
CAS :
NA
Molecular Formula : C31H34N10O13S4
Molecular Weight : 882.91


(6R,7R)-3-((5-(Acetoxymethyl)-2-(((Z)-2-(2-aminothiazol-4-yl)-2-(methoxyimino)acetamido)methyl)-3,6-dihydro-2H-1,3-thiazine-4-carbonyl)oxy)-7-((Z)-2-(2-aminothiazol-4-yl)-2-(methoxyimino)acetamido)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic Acid
(6R,7R)-3-((5-(Acetoxymethyl)-2-(((Z)-2-(2-aminothiazol-4-yl)-2-(methoxyimino)acetamido)methyl)-3,6-dihydro-2H-1,3-thiazine-4-carbonyl)oxy)-7-((Z)-2-(2-aminothiazol-4-yl)-2-(methoxyimino)acetamido)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic Acid
Catalogue No.:PA 82 0221003
CAS :
NA
Molecular Formula : C28H30N10O11S4
Molecular Weight : 810.85


(6R,7R)-3-(((6R,7R)-3-(Acetoxymethyl)-7-((Z)-2-(2-aminothiazol-4-yl)-2-(methoxyimino)acetamido)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carbonyl)oxy)-7-((Z)-2-(2-aminothiazol-4-yl)-2-(methoxyimino)acetamido)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic Acid
(6R,7R)-3-(((6R,7R)-3-(Acetoxymethyl)-7-((Z)-2-(2-aminothiazol-4-yl)-2-(methoxyimino)acetamido)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carbonyl)oxy)-7-((Z)-2-(2-aminothiazol-4-yl)-2-(methoxyimino)acetamido)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic Acid
Catalogue No.:PA 82 0221004
CAS :
NA
Molecular Formula : C29H28N10O12S4
Molecular Weight : 836.84


(6R,7R)-7-((Z)-2-(2-Aminothiazol-4-yl)-2-(methoxyimino)acetamido)-3-(((6R,7R)-7-((Z)-2-(2-aminothiazol-4-yl)-2-(methoxyimino)acetamido)-3-(hydroxymethyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carbonyl)oxy)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic Acid
(6R,7R)-7-((Z)-2-(2-Aminothiazol-4-yl)-2-(methoxyimino)acetamido)-3-(((6R,7R)-7-((Z)-2-(2-aminothiazol-4-yl)-2-(methoxyimino)acetamido)-3-(hydroxymethyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carbonyl)oxy)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic Acid
Catalogue No.:PA 82 0221005
CAS :
NA
Molecular Formula : C27H26N10O11S4
Molecular Weight : 794.8


(6R,7R)-3-((Z)-7-(5-(Acetoxymethyl)-4-(methoxycarbonyl)-3,6-dihydro-2H-1,3-thiazin-2-yl)-4-(2-aminothiazol-4-yl)-5,8-dioxo-2,9-dioxa-3,6-diazadec-3-en-10-yl)-7-((Z)-2-(2-aminothiazol-4-yl)-2-(methoxyimino)acetamido)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic Acid
(6R,7R)-3-((Z)-7-(5-(Acetoxymethyl)-4-(methoxycarbonyl)-3,6-dihydro-2H-1,3-thiazin-2-yl)-4-(2-aminothiazol-4-yl)-5,8-dioxo-2,9-dioxa-3,6-diazadec-3-en-10-yl)-7-((Z)-2-(2-aminothiazol-4-yl)-2-(methoxyimino)acetamido)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic Acid
Catalogue No.:PA 82 0221006
CAS :
NA
Molecular Formula : C31H34N10O13S4
Molecular Weight : 882.91


(6R,7R)-3-(Acetoxymethyl)-7-((Z)-2-(2-((((2R)-2-((R,Z)-4-(2-aminothiazol-4-yl)-5,8-dioxo-2,9-dioxa-3,6-diazadec-3-en-7-yl)-4-carboxy-5,6-dihydro-2H-1,3-thiazin-5-yl)methyl)amino)thiazol-4-yl)-2-(methoxyimino)acetamido)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic Acid
(6R,7R)-3-(Acetoxymethyl)-7-((Z)-2-(2-((((2R)-2-((R,Z)-4-(2-aminothiazol-4-yl)-5,8-dioxo-2,9-dioxa-3,6-diazadec-3-en-7-yl)-4-carboxy-5,6-dihydro-2H-1,3-thiazin-5-yl)methyl)amino)thiazol-4-yl)-2-(methoxyimino)acetamido)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic Acid
Catalogue No.:PA 82 0221007
CAS :
1584117-27-0
Molecular Formula : C31H34N10O13S4
Molecular Weight : 882.91


(Pivaloyloxy)methyl (6R,7R)-7-((Z)-2-(2-((4-methoxybenzyl)amino)thiazol-4-yl)-2-(methoxyimino)acetamido)-3-((Z)-2-(4-methylthiazol-5-yl)vinyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate
(Pivaloyloxy)methyl (6R,7R)-7-((Z)-2-(2-((4-methoxybenzyl)amino)thiazol-4-yl)-2-(methoxyimino)acetamido)-3-((Z)-2-(4-methylthiazol-5-yl)vinyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate
Catalogue No.:PA 82 0221008
CAS :
NA
Molecular Formula : C33H36N6O8S3
Molecular Weight : 740.87


(Pivaloyloxy)methyl (6R,7R)-7-((2Z)-2-(2-(((dimethylamino)methylene)amino)thiazol-4-yl)-2-(methoxyimino)acetamido)-3-((Z)-2-(4-methylthiazol-5-yl)vinyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate
(Pivaloyloxy)methyl (6R,7R)-7-((2Z)-2-(2-(((dimethylamino)methylene)amino)thiazol-4-yl)-2-(methoxyimino)acetamido)-3-((Z)-2-(4-methylthiazol-5-yl)vinyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate
Catalogue No.:PA 82 0221009
CAS :
NA
Molecular Formula : C28H33N7O7S3
Molecular Weight : 675.79