CAS No:105889-45-0(free base),147816-24-8(hydrochloride)||Chemical Formula:C23H29N5O8S2||Molecular Weight:567.63200||Exact Mass:567.14575||(pivaloyloxy)methyl (6R,7R)-7-((Z)-2-(2-aminothiazol-4-yl)pent-2-enamido)-3-((carbamoyloxy)methyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate