CAS No:1192365-87-9 ||Chemical Formula:C25H33N5O11S2 ||Molecular Weight:643.68300 ||Exact Mass:643.161800||(RS)-1-((isopropoxycarbonyl)oxy)ethyl (6R,7R)-7-((Z)-2-(2-((isopropoxycarbonyl)amino)thiazol-4-yl)-2-(methoxyimino)acetamido)-3-(methoxymethyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate