(2S-cis)-6,6-dibromo-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid; (2S,5R)-6,6-Dibromo-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2β-carboxylic acid; Sulbactam Related Compound F; Sulbactam EP Impurity F; Sulbactam Impurity 6; Sulbactam EP Imp F