CAS No:1301254-48-7 ||Chemical Formula:C25H27N9O8S2 ||Molecular Weight:562.57200 ||Exact Mass:562.09405 ||(6R,7R)-7-((Z)-2-(2-aminothiazol-4-yl)-2-(((2-carboxypropan-2-yl)oxy)imino)acetamido)-8-oxo-3-(pyridin-1-ium-1-ylmethyl)-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate 5-oxide