Cefixime EP Impurity E Sodium 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 Disodium salt (as per EP)

Smile: NC1=NC(/C(C(N[C@@]2([H])C(N(C(C([O-])=O)=C(C=C)CS3)[C@@]23[H])=O)=O)=N/OCC([O-])=O)=CS1.[Na+].[Na+]