cefmetazole and its Impurities
Cefmetazole is a cephamycin antibiotic, usually grouped with the second-generation cephalosporins. It is a broad-spectrum cephalosporin antimicrobial and has been effective in treating bacteria responsible for causing urinary tract and skin infections.. Reference standards of Cefmetazole API, and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below
(6R,7R)-7-(2-((Cyanomethyl)thio)acetamido)-7-methoxy-3-(((1-methyl-1H-tetrazol-5-yl)thio)methyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic Acid
(6R,7R)-7-(2-((Cyanomethyl)thio)acetamido)-7-methoxy-3-(((1-methyl-1H-tetrazol-5-yl)thio)methyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic Acid
Catalogue No.:PA 03 25570
CAS :
2714506-85-9
Molecular Formula : C15H17N7O5S3
Molecular Weight : 471.53
7β-Amino-7α-methoxy-3-(1-methyl-5-tetrazolylthio)methyl-3-cephem-4-carboxylic Acid Diphenylmethyl Ester
7β-Amino-7α-methoxy-3-(1-methyl-5-tetrazolylthio)methyl-3-cephem-4-carboxylic Acid Diphenylmethyl Ester
Catalogue No.:PA 03 25590
CAS :
56610-72-1
Molecular Formula : C24H24N6O4S2
Molecular Weight : 524.62
(6R-trans)-7-Amino-3-[[(1-methyl-1H-tetrazol-5-yl)thio]methyl]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic Acid Hydrochloride
(6R-trans)-7-Amino-3-[[(1-methyl-1H-tetrazol-5-yl)thio]methyl]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic Acid Hydrochloride
Catalogue No.:PA 03 25600
CAS :
68350-02-7
Molecular Formula : C10H13ClN6O3S2
Molecular Weight : 364.82
(6R-trans)-7-Amino-3-[[(1-methyl-1H-tetrazol-5-yl)thio]methyl]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic Acid
(6R-trans)-7-Amino-3-[[(1-methyl-1H-tetrazol-5-yl)thio]methyl]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic Acid
Catalogue No.:PA 03 25580
CAS :
24209-38-9
Molecular Formula : C10H12N6O3S2
Molecular Weight : 328.37
(6R,7S)-7-(2-((Cyanomethyl)thio)acetamido)-7-methoxy-3-((4-methyl-5-thioxo-4,5-dihydro-1H-tetrazol-1-yl)methyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic Acid
(6R,7S)-7-(2-((Cyanomethyl)thio)acetamido)-7-methoxy-3-((4-methyl-5-thioxo-4,5-dihydro-1H-tetrazol-1-yl)methyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic Acid
Catalogue No.:PA 03 0251000
CAS :
NA
Molecular Formula : C15H17N7O5S3
Molecular Weight : 471.53
S-(1-Methyl-1H-tetrazol-5-yl) (6R,7S)-7-(2-((cyanomethyl)thio)acetamido)-3-(hydroxymethyl)-7-methoxy-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carbothioate
S-(1-Methyl-1H-tetrazol-5-yl) (6R,7S)-7-(2-((cyanomethyl)thio)acetamido)-3-(hydroxymethyl)-7-methoxy-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carbothioate
Catalogue No.:PA 03 0251001
CAS :
2767032-81-3
Molecular Formula : C15H17N7O5S3
Molecular Weight : 471.53
(6R,7S)-7-Methoxy-7-(2-((2-methoxy-2-oxoethyl)thio)acetamido)-3-(((1-methyl-1H-tetrazol-5-yl)thio)methyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic Acid
(6R,7S)-7-Methoxy-7-(2-((2-methoxy-2-oxoethyl)thio)acetamido)-3-(((1-methyl-1H-tetrazol-5-yl)thio)methyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic Acid
Catalogue No.:PA 03 0251002
CAS :
NA
Molecular Formula : C16H20N6O7S3
Molecular Weight : 504.55
(6R,7S)-7-Amino-3-(((1-methyl-1H-tetrazol-5-yl)thio)methyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid
(6R,7S)-7-Amino-3-(((1-methyl-1H-tetrazol-5-yl)thio)methyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid
Catalogue No.:PA 03 0251003
CAS :
126437-69-2
Molecular Formula : C10H12N6O3S2
Molecular Weight : 328.37
