Cefixime EP Impurity E Potassium salt

Chemical Name: (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 Potassium salt (as per EP)

Smile: O=C(C(N12)=C(C=C)CS[C@]2([H])[C@H](NC(/C(C3=CSC(N)=N3)=N/OCC(O)=O)=O)C1=O)O.Cl