Cefuroxime EP Impurity A Potassium salt

Chemical Name: (6R,7R)-7-[[(Z)-(furan-2-yl)(methoxyimino)acetyl]amino]-3-(hydroxymethyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid Potassium salt (as per EP)

Synonym: (S)-2-methoxy-5-(3-(methylamino)-1-(thiophen-2-yl)propoxy)naphthalen-1-yl hydrogen sulfate

Smile: O=C(C(N12)=C(CO)CS[C@]2([H])[C@H](NC(/C(C3=CC=CO3)=N\OC)=O)C1=O)[O-].[K+]