Synonyms: Quinacillin disodium salt;Quinacillin sodium;Disodium quinacillin;RD 13962;3-Carboxy-2-quinoxalinylpenicillin disodium salt;4-Thia-1-azabicyclo(3.2.0)heptane-2-carboxylic acid, 6-(3-carboxy-2-quinoxalinecarboxamido)-3,3-dimethyl-7-oxo-, disodium salt;disodium 3-{[(5r,6r)-2-carboxylato-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]hept-6-yl]carbamoyl}quinoxaline-2-carboxylate;AC1L3QXV;AC1Q1UZS;985-32-0;AR-1I6455;LS-149759;disodium (5R,6R)-6-[(3-carboxylatoquinoxaline-2-carbonyl)amino]-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylate