sodium 6-(alpha-(2-fluoro-4-hydroxyphenyl)-alpha-sulfonatoacetamido)-3-(3-guanidinio-2-oxoimidazolidin-1-yl)-7-oxo-4-thia-1-azabicyclo(3.2.0)heptane-3-carboxylate
sodium 6-(alpha-(2-fluoro-4-hydroxyphenyl)-alpha-sulfonatoacetamido)-3-(3-guanidinio-2-oxoimidazolidin-1-yl)-7-oxo-4-thia-1-azabicyclo(3.2.0)heptane-3-carboxylate