cefoxitin and its Impurities
Cefoxitin is a second-generation cephamycin antibiotic. It is an antibiotic used to treat a wide variety of bacterial infections.. Reference standards of Cefoxitin API, and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below
(6R,7R)-7-Amino-3-((carbamoyloxy)methyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic Acid
(6R,7R)-7-Amino-3-((carbamoyloxy)methyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic Acid
Catalogue No.:PA 03 0281000
CAS :
37051-07-3
Molecular Formula : C9H11N3O5S
Molecular Weight : 273.26
(S)-2-Methoxy-2-((R)-7-oxo-1,2,5,7-tetrahydro-4H-furo[3,4-d][1,3]thiazin-2-yl)-2-(2-(thiophen-2-yl)acetamido)acetic acid;
(S)-2-Methoxy-2-((R)-7-oxo-1,2,5,7-tetrahydro-4H-furo[3,4-d][1,3]thiazin-2-yl)-2-(2-(thiophen-2-yl)acetamido)acetic acid;
Catalogue No.:PA 03 0281002
CAS :
NA
Molecular Formula : C15H16N2O6S2
Molecular Weight : 384.42
(7S)-3-(Acetoxymethyl)-7-methoxy-8-oxo-7-(2-(thiophen-2-yl)acetamido)-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid
(7S)-3-(Acetoxymethyl)-7-methoxy-8-oxo-7-(2-(thiophen-2-yl)acetamido)-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid
Catalogue No.:PA 03 0281003
CAS :
1217521-43-1
Molecular Formula : C17H18N2O7S2
Molecular Weight : 426.46
(7S)-3-(Acetoxymethyl)-7-methoxy-8-oxo-7-(2-(thiophen-2-yl)acetamido)-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic Acid Cyclohexanamine
(7S)-3-(Acetoxymethyl)-7-methoxy-8-oxo-7-(2-(thiophen-2-yl)acetamido)-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic Acid Cyclohexanamine
Catalogue No.:PA 03 0281008
CAS :
1217521-44-2
Molecular Formula : C23H31N3O7S2
Molecular Weight : 525.64
Methyl (R)-3-((6R,7S)-3-((carbamoyloxy)methyl)-7-methoxy-8-oxo-7-(2-(thiophen-2-yl)acetamido)-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carbonyl)-5-(hydroxymethyl)-2-((S)-methoxy(2-(thiophen-2-yl)acetamido)methyl)-3,6-dihydro-2H-1,3-thiazine-4-carboxylate
Methyl (R)-3-((6R,7S)-3-((carbamoyloxy)methyl)-7-methoxy-8-oxo-7-(2-(thiophen-2-yl)acetamido)-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carbonyl)-5-(hydroxymethyl)-2-((S)-methoxy(2-(thiophen-2-yl)acetamido)methyl)-3,6-dihydro-2H-1,3-thiazine-4-carboxylate
Catalogue No.:PA 03 0281009
CAS :
NA
Molecular Formula : C31H35N5O11S4
Molecular Weight : 781.89
Methyl (R,Z)-1-((6R,7S)-7-methoxy-8-oxo-7-(2-(thiophen-2-yl)acetamido)-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carbonyl)-7-oxo-N-(2-(thiophen-2-yl)acetyl)-1,2,5,7-tetrahydro-4H-furo[3,4-d][1,3]thiazine-2-carbimidate
Methyl (R,Z)-1-((6R,7S)-7-methoxy-8-oxo-7-(2-(thiophen-2-yl)acetamido)-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carbonyl)-7-oxo-N-(2-(thiophen-2-yl)acetyl)-1,2,5,7-tetrahydro-4H-furo[3,4-d][1,3]thiazine-2-carbimidate
Catalogue No.:PA 03 0281010
CAS :
NA
Molecular Formula : C28H26N4O8S4
Molecular Weight : 674.78
((6R,7S)-7-Methoxy-2-((R)-2-((S)-methoxy(2-(thiophen-2-yl)acetamido)methyl)-7-oxo-1,2,5,7-tetrahydro-4H-furo[3,4-d][1,3]thiazine-1-carbonyl)-8-oxo-7-(2-(thiophen-2-yl)acetamido)-5-thia-1-azabicyclo[4.2.0]oct-2-en-3-yl)methyl carbamate
((6R,7S)-7-Methoxy-2-((R)-2-((S)-methoxy(2-(thiophen-2-yl)acetamido)methyl)-7-oxo-1,2,5,7-tetrahydro-4H-furo[3,4-d][1,3]thiazine-1-carbonyl)-8-oxo-7-(2-(thiophen-2-yl)acetamido)-5-thia-1-azabicyclo[4.2.0]oct-2-en-3-yl)methyl carbamate
Catalogue No.:PA 03 0281011
CAS :
NA
Molecular Formula : C30H31N5O10S4
Molecular Weight : 749.84
