. "7-{4-[(6R,7R)-2-Carboxy-7-((R)-2-hydroxy-2-phenyl-acetylamino)-8-oxo-5-thia-1-aza-bicyclo[4.2.0]oct-2-en-3-ylmethyl]-piperazin-1-yl}-1-cyclopropyl-6-fluoro-4-oxo-1,4-dihydro-quinoline-3-carboxylic acid" . "4" . . . . . . . . . . . . . . . . . . . . . . . . . . . . .