Synonyms: 4-Thia-1-azabicyclo[3.2.0]heptane-2-carboxylicacid, 6-(1-aminocyclohexanecarboxamido)-3,3-dimethyl-7-oxo- (7CI,8CI);4-Thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid,6-[[(1-aminocyclohexyl)carbonyl]amino]-3,3-dimethyl-7-oxo-, [2S-(2a,5a,6b)]-; (1-Aminocyclohexyl)penicillin; 6-(1-Aminocyclohexanecarboxamido)penicillanicacid; 6-(1-Aminocyclohexylcarboxamido)penicillanic acid;Aminocyclohexylpenicillin; Calthor; Ciclacillin; Ciclacillum; Citosarin;Cyclacillin; Cyclapen; NSC 88789; Penicillin, (aminocyclohexyl)-; Syngacillin;Ultracillin; Vastcillin; Vatracin; Vipicil; Wy 4508; Wyvital