(6R,7R)-3-(acetoxymethyl)-8-oxo-7-(2-(pyridin-4-ylthio)acetamido)-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid; (6R,7R)-3-[(Acetyloxy)methyl]-8-oxo-7-[[(4-pyridinylthio)acetyl]amino]-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic Acid; (6R-trans)-3-[(Acetyloxy)methyl]-8-oxo-7-[[(4-pyridinylthio)acetyl]amino]-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic Acid; 7-[2-(4-Pyridylthio)acetamido]cephalosporanic Acid; Cefapirin; Cefaprin; Cephapirine; Cephaprin
