Cefoxitin

Cefoxitin EP Impurity A Cefoxitin Impurity A:

Decarbamoyl Cefoxitin Sodium ; (6R,7S)-3-(Hydroxymethyl)-7-methoxy-8-oxo-7-[[(thiophen-2-yl)acetyl] amino]-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid sodium salt ; C15H15N2NaO6S2 ; MW: 406.41 ;
Cefoxitin EP Impurity B Cefoxitin Impurity B :

(2RS,6R,7S)-3-[(Carbamoyloxy)methyl]-7-methoxy-8-oxo-7-[[(thiophen-2-yl) acetyl]amino]-5-thia-1-azabicyclo[4.2.0]oct-3-ene-2-carboxylic acid sodium salt ; C16H16N3NaO7S2 ; MW: 449.43 ;
Cefoxitin EP Impurity C Cefoxitin Impurity C :

Cefalotin Lactone ; Deacetyl Cephalothin Lactone ; (5aR,6R)-6-[[(Thiophen-2-yl)acetyl]amino]-5a,6-dihydro-3H,7H-azeto[2,1-b] furo[3,4-d][1,3]thiazine-1,7(4H)-dione ; CAS : 10590-10-0 ; C14H12N2O4S2 ; MW: 336.39 ;
Cefoxitin EP Impurity D Cefoxitin Impurity D :

Cefoxitin Lactone ; (5aR,6S)-6-Methoxy-6-[[(thiophen-2-yl)acetyl]amino]-5a,6-dihydro-3H,7H-azeto[2,1-b]furo[3,4-d][1,3]thiazine-1,7(4H)-dione ;  C15H14N2O5S2 ; MW: 366.41 ;
Cefoxitin EP Impurity E Cefoxitin Impurity E:

(R)-Methoxy Cefoxitin ; (6R,7S)-3-[(Carbamoyloxy)methyl]-7-methoxy-7-[[(2R)-2-methoxy-2-(thiophen-2-yl)acetyl]amino]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid ; C17H19N3O8S2 ; Mol. Wt.: 457.48 ;
Cefoxitin EP Impurity F Cefoxitin Impurity F:

(S)-Methoxy Cefoxitin ; (6R,7S)-3-[(Carbamoyloxy)methyl]-7-methoxy-7-[[(2S)-2-methoxy-2-(thiophen-2-yl)acetyl]amino]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid ;C17H19N3O8S2 ; Mol. Wt.: 457.48 ;
Cefoxitin EP Impurity G Cefoxitin Impurity G :

Cefoxitin Dimer ; (6R,7S)-3-[[[[[[(6R,7S)-2-Carboxy-7-methoxy-8-oxo-7-[[2-(thiophen-2-yl)acetyl] amino]-5-thia-1-azabicyclo[4.2.0]oct-2-en-3-yl]methyl]oxy]carbamoyl]oxy]methyl]-7-methoxy-8-oxo-7-[[2-(thiophen-2-yl)acetyl]amino]-5-thia-1-azabicyclo[4.2.0]o C31H31N5O13S4 ; Mol. Wt.: 809.86 ;
Cefoxitin Sodium Cefoxitin Sodium :

Sodium (6R-cis)-3-[(carbamoyloxy)methyl]-7-methoxy-8-oxo-7-(2-thienylacetamido)-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate ; CAS : 33564-30-6 ; C18H16N3NaO7S2 ; MW: 449.43 ;