The molecule is the zwitterionic form of loracarbef. It is a carbacephem and a zwitterion. It is a tautomer of a loracarbef.
(6R,7S)-7-[[(2R)-2-azaniumyl-2-phenylacetyl]amino]-3-chloro-8-oxo-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate