Cefprozil EP Impurity F Potassium salt

Chemical Name: (6R,7R)-7-amino-8-oxo-3-[(1E)-prop-1-enyl]-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid (as per EP); 7-Amino-3-propenylcephalosporanic acid (E-isomer) (as per USP); (6R,7R)-7-Amino-8-oxo-3-[(E)-prop-1-enyl]-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid (as per USP)

Smile: O=C(C(N12)=C(/C=C/C)CS[C@]2([H])[C@@](N)([H])C1=O)O.[K]