CAS No:N/A ||Chemical Formula:C27H31N5O8S2 ||Molecular Weight:617.692 ||Exact Mass:617.1614||(2S,5R,6R)-6-(2-((4S)-4-carboxy-5,5-dimethylthiazolidin-2-yl)-2-(5-methyl-3-phenylisoxazole-4-carboxamido)acetamido)-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid