Cefixime EP Impurity D Potassium salt

Chemical Name: (6R,7R)-7-[[(E)-2-(2-aminothiazol-4-yl)-2-[(carboxymethoxy)imino]acetyl]amino]-3-ethenyl-8-oxo5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid Potassium salt (as per EP)

Smile: O=C1OC(C)C2=C1N(C([C@H]3NC(/C(C4=CSC(N)=N4)=N\OCC(O)=O)=O)=O)[C@]3([H])SC2