Cephaloridine

N-[7-[2'-Thienyl-acetamidoceph-3-ylmethyl]] pyridinium-4-carboxylate

PyridiniuM,1-[[(6R,7R)-2-carboxy-8-oxo-7-[[2-(2-thienyl)acetyl]aMino]-5-thia-1-azabicyclo[4.2.0]oct-

(6R,7R)-8-oxo-3-(pyridin-1-ylmethyl)-7-[(2-thiophen-2-ylacetyl)amino]-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate