3841-12-1

(2S,6R)-3,3-dimethyl-7-oxo-6-[(phenylacetyl)amino]-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid - 2,2'-[ethane-1,2-diylbis(iminomethanediyl)]diphenol (2:1)