Category
Cefoxitin
CAS Number
Cefoxitin STD - 35607-66-0: IMP-A- 54333-94-7 ; IMP-B- NA : IMP-E-2395025-32-6 : IMP-F-2395025-37-1: IMP-H- 37051-05-1 : IMP-I- NA : IMP-J- 1422023-33-3 ;
Molecular Formula
Cefoxitin STD - C16H17N3O7S2: IMP-A- C15H16N2O6S2; IMP-B- C16H17N3O7S2: IMP-E- C17H19N3O8S2: IMP-F- C17H19N3O8S2: IMP-H- C15H15N3O6S2: IMP-I- C16H17N3O7S2 : IMP-J- C15H14N2O5S2 ;
Molecular Weight
Cefoxitin STD - 427.4 g/mol: IMP-A- 384.43 g/mol ; IMP-B- 427.4 g/mol : IMP-E- 457.5 g/mol : IMP-F- 457.5 g/mol: IMP-H- 397.4 g/mol: IMP-I- 427.4 g/mol : IMP-J- 366.4 g/mol;
Synonym

Cefoxitin:(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-carboxylic acid (as per EP) ; (6R,7S)-3-(Hydroxymethyl)-7-methoxy-8-oxo-7-[2-(2-thienyl)acetamido]-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid carbamate (ester) 

Cefoxitin EP IMP-A-Decarbamylcefoxitin; (6R,7S)-3-(Hydroxymethyl)-7-methoxy-8-oxo-7-[[2-(2-thienyl)acetyl]amino]-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic Acid; Decarbamoylcefoxitin; (6R,7S)-3-(Hydroxymethyl)-7-methoxy-8-oxo-7-(2-(thiophen-2-yl)acetamido)-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic Acid

Cefoxitin EP IMP-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 (as per EP) ; (6R,7S)-3-[(Carbamoyloxy)methyl]-7-methoxy-8-oxo-7-[2-(thiophen-2-yl)acetamido]-5-thia-1-azabicyclo[4.2.0]oct-3-ene-2-carboxylic acid ;Delta-3-cefoxitin  ; Cefoxitin 3-ene.

Cefoxitin EP IMP-E-(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 ;

Cefoxitin EP IMP-F - (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 ;

Cefoxitin EP IMP-H- (6R,7R)-3-[(carbamoyloxy)methyl]-8-oxo-7-[2-(thiophen-2-yl)acetamido]-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid ;Desmethoxycefoxitin .

Cefoxitin EP IMP- I -(6R,7S)-3-[(carbamoyloxy)methyl]-7-methoxy-8-oxo-7-[2- (thiophen-3-yl)acetamido]-5-thia-1-azabicyclo[4.2.0]oct2-ene-2-carboxylic acid,

Cefoxitin EP IMP-J - N-[(5aR,6S)-6-methoxy-1,7-dioxo-1,4,6,7-tetrahydro-3H,5aH-azeto[2,1-b]furo[3,4-d][1,3]thiazin-6-yl]-2-(thiophen-2-yl)acetamide 

 

Slide_1
Purity:

Above - 95.0%

Technical Data:

We will provide complete documentation support for every Standard Material. All analytical reports such as ¹H NMR, ¹³C NMR, Mass, FT-IR, HPLC Purity/GC Purity/QNMR Purity, Water content by KF/ Loss on Drying/TGA (Thermo-gravimetric Analysis). Certificate of Analysis with potency report. Each Standard Material SER (Structure Elucidation Report) with NMR, Mass, IR spectral interpretation. This whole analytical document can be included in eCTD, ANDA, DMF submissions to regulatory agencies.

Cefoxitin CRS is used as a reference standard for peak identification in chromatographic analysis to confirm the identity of cefoxitin in pharmaceutical formulations. It helps ensure accuracy, specificity, and compliance with pharmacopeial quality control requirements.