Sodium(2S,5R)-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo(3.2.0)heptane-2-carboxylate 4,4-Dioxide
4-Thia-1-azabicyclo(3.2.0)heptane-2-carboxylic Acid, 3,3-dimethyl-7-oxo-, 4,4-dioxide, Sodium Salt,(2S-cis)-