CAS No:N/A||Chemical Formula:C27H26N6O9S3 ||Molecular Weight:674.71800||Exact Mass:674.09234 (6R,7R)-7-((Z)-2-(2-(((4-carboxy-2H-thiet-3-yl)methyl)amino)thiazol-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