CAS No:2743427-34-9||Chemical Formula:C23H27N5O7S||Molecular Weight:517.55700||Exact Mass:517.16312||(2S,5R,6R)-6-((S)-2-(4-ethyl-2,3-dioxopiperazine-1-carboxamido)-2-phenylacetamido)-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid