(6R,7R)-3-(hydroxymethyl)-8-oxo-7-(2-(pyridin-4-ylthio)acetamido)-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid, sodium salt; (6R,7R)-3-(Hydroxymethyl)-8-oxo-7-[[2-(4-pyridinylthio)acetyl]amino]-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic Acid Sodium Salt; Deacetylcephapirin Sodium Salt; (6R-trans)-3-(Hydroxymethyl)-8-oxo-7-[[(4-pyridinylthio)acetyl]amino]-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic Acid Sodium Salt
