CAS No: 73547-69-0 ||Chemical Formula:C45H44N6O7S2 ||Molecular Weight:845.002 ||Exact Mass:844.27129 ||(6R,7R)-7-((Z)-2-(((1-(tert-butoxy)-2-methyl-1-oxopropan-2-yl)oxy)imino)-2-(2-(tritylamino)thiazol-4-yl)acetamido)-8-oxo-3-(pyridin-1-ium-1-ylmethyl)-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate