Cefotaxime

Cefixime EP Impurity A Cefixime Impurity A:

2-[[(Z)-2-(2-Aminothiazol-4-yl)-2-[(carboxymethoxy)imino]acetyl]amino]-2-[(2R)-5-methyl-7-oxo-1,2,5,7-tetrahydro-4H-furo[3,4-d][1,3]thiazin-2-yl]acetic acid ; CAS : 1614255-90-1 ; C16H17N5O8S2 ; Mol. Wt.: 471.46 ;
Cefixime EP Impurity B Cefixime Impurity B:

2-[[[(Z)-1-(2-Aminothiazol-4-yl)-2-[[[(2R,5RS)-5-methyl-7-oxo-1,2,5,7-tetrahydro-4H-furo[3,4-d][1,3]thiazin-2-yl]methyl]amino]-2-oxoethylidene] amino]oxy]acetic acid acetate salt ; CAS : 1335475-19-8 ;

C19H21N5O12S2 ; Mol. Wt.: 575.53 ;
Cefixime EP Impurity C Cefixime Impurity C :

Cefixime 7-Epimer ; (6R,7S)-7-[[(Z)-2-(2-Aminothiazol-4-yl)-2-[(carboxymethoxy)imino]acetyl] amino]-3-ethenyl-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid ; CAS : 108691-83-4 ; C16H15N5O7S2 ; Mol. Wt.: 453.45 ;
Cefixime EP Impurity D Cefixime  Impurity D:

Cefixime E-Isomer ; (6R,7R)-7-[[(E)-2-(2-Aminothiazol-4-yl)-2-[(carboxymethoxy)imino]acetyl] amino]-3-ethenyl-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid ; CAS : 97164-56-2 ; C16H15N5O7S2 ;

Mol. Wt.: 453.45 ;
Cefixime EP Impurity E Cefixime Impurity E:

(6R,7R)-7-[[(Z)-2-(2-Aminothiazol-4-yl)-2-[(carboxymethoxy)imino]acetyl] amino]-3-methyl-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid ; CAS : 72701-01-0 ;  C15H15N5O7S2 ; Mol. Wt.: 441.44 ;
Cefixime EP Impurity F Cefixime Impurity F:

Cefixime Ethyl Ester Sodium Salt ; (6R,7R)-7-[[(Z)-2-(2-Aminothiazol-4-yl)-2-[(2-ethoxy-2-oxoethoxy)imino] acetyl]amino]-3-ethenyl-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid sodium salt ; CAS : 79368-95-9 ; C18H18N5NaO7S2; Mol. Wt.: 503.48 ;
Cefixime Methyl Ester Cefixime Methyl Ester:

(6R,7R)-7-[[(2Z)-2-(2-Amino-4-thiazolyl)-2-[(2-methoxy-2-oxoethoxy)imino]acetyl]amino]-3-ethenyl-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic Acid ; CAS : 88621-01-6 ; C17H17N5O7S2 ; Mol. Wt.: 467.48 ;
Cefixime Sulfone Cefixime Sulfone:

Cefixime 1,1-Dioxide ; (6R,7R)-7-[[(2Z)-2-(2-Amino-4-thiazolyl)-2-[(carboxymethoxy)imino]acetyl]amino]-3-ethenyl-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic Acid-1,1-Dioxide ;C16H15N5O9S2 ;
Mol. Wt.: 485.45 ;
Cefixime Sulfoxide Cefixime Sulfoxide:

(6R,7R)-7-[[(2Z)-2-(2-Amino-4-thiazolyl)-2-[(carboxymethoxy)imino]acetyl]amino]-3-ethenyl-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic Acid-1-oxide ; C16H15N5O8S2 ; Mol. Wt.: 469.45 ;
Cefixime Trihydrate Cefixime Trihydrate:

8-[[2-(2-Amino-1,3-thiazol-4-yl)-2-(carboxymethoxyimino)acetyl]amino]-4-ethenyl-7-oxo-2-thia-6-azabicyclo[4.2.0]oct-4-ene-5-carboxylic acid trihydrate ; CAS : 125110-14-7 ; C16H21N5O10S2 ;

MW: 507.50 ;