CAS No:61270-78-8||Chemical Formula:C18H16N6Na2O8S3||Molecular Weight:586.51954||Exact Mass:585.99871||sodium (6R,7R)-7-((R)-2-hydroxy-2-phenylacetamido)-8-oxo-3-(((1-(sulfonatomethyl)-1H-tetrazol-5-yl)thio)methyl)-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate