17230-86-3 4-Thia-1-azabicyclo(3.2.0)heptane-2-carboxylic acid, 6-((carboxyphenylacetyl)amino)-3,3-dimethyl-7-oxo-, monopotassium salt, (6S-(2alpha,5alpha,6beta))- CARBENICILLIN POTASSIUM Carbenicillin potassium [USAN] EINECS 241-269-6 GS 3159 N-(2-Carboxy-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo(3.2.0)hept-6-yl)-2-phenylmalonamic acid 2-(potassium salt) Potassium hydrogen (2S-(2alpha,5alpha,6beta))-6-(carboxylatophenylacetamido)-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo(3.2.0)heptane-2-carboxylate