.alpha.-Carboxybenzylpenicillin disodium salt .alpha.-Carboxybenzylpenicillin sodium salt 4-Thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid, 6-[(carboxyphenylacetyl)amino]-3,3-dimethyl-7-oxo-, disodium salt, [2S-(2.alpha.,5.alpha.,6.beta.)]- 4-Thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid, 6-[(carboxyphenylacetyl)amino]-3,3-dimethyl-7-oxo-, disodium salt, [6S-(2.alpha.,5.alpha.,6.beta.)]- 4800-94-6 Anabactyl BRL 2064 BRL 2064 disodium BRL-2064 CARBENICILLIN CP 15639-2 CP 156392 CP-15-639-2 Carbecin Carbenicillin Disodium Carbenicillin disodium salt Carbenicillin sodium Carbenicilline disodium Carindapen Disodium (.alpha.-carboxybenzyl)penicillin Disodium carbenicillin Fugacillin GS 3159 disodium salt Geopen Gripenin Hyoper Malonamic acid, N-(2-carboxy-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]hept-6-yl)-2-phenyl-, disodium salt Microcillin N-(2-Carboxy-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]hept-6-yl)-2-phenylmalonamic acid, disodium salt NSC111071 Piopen Pyocianil Pyopan Pyopen Pyopene Sodium carbenicillin