4-Thia-1-azabicyclo[3.2.0]heptane-2-carboxylicacid,3,3-dimethyl-6-[[[[[[[3-(methylsulfonyl)-2-oxo-1-imidazolidinyl]carbonyl]amino]carbonyl]amino]phenylacetyl]amino]-7-oxo-,monosodium salt, [2S-[2a,5a,

chebi:52067 ; mezlocillin sodium ; mezlocillin sodium (350 mg) ; sodium 6beta-{(2r)-2-[3-(methanesulfonyl)-2-oxoimidazolidine-1-carboxamido]-2-phenylacetamido}penicillanate ; sodium 6beta-{(2r)-2-[3-(methanesulfonyl)-2-oxoimidazolidine-1-carboxamido]-2-phenylacetamido}-2,2-dimethylpenam-3alpha-carboxylate ; 3,3-dimethyl-6-[[2-[(3-methylsulfonyl-2-oxo-imidazolidin-1-yl)carbonylamino]-2-phenyl-acetyl]amino]-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid sodium salt ; sodium (2s,5r,6r)-3,3-dimethyl-6-{[(2r)-2-({[3-(methylsulfonyl)-2-oxoimidazolidin-1-yl]carbonyl}amino)-2-phenylacetyl]amino}-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylate ; (2s,5r,6r)-3,3-dimethyl-6-((r)-2-(3-(3-(methylsulfonyl)-2-oxoimidazolidine-1-carbonyl)ureido)-2-phenylacetamido)-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid, sodium salt