(-)-Ephenamine penicillin G 4-Thia-1-azabicyclo(3.2.0)heptane-2-carboxylic acid, 3,3-dimethyl-7-oxo-6-((phenylacetyl)amino)- (2S-(2alpha,5alpha,6beta))-, compd.with (R-(R*,S*))-beta-(methylamino)-alpha-phenylbenzeneethanol (1 :1) 4-Thia-1-azabicyclo(3.2.0)heptane-2-carboxylic acid, 3,3-dimethyl-7-oxo-6-((phenylacetyl)amino)-(2S-(2-alpha,5-alpha,6-beta))-, compd. with (R-(R*,S*))-beta-(methylamino)-alpha-phenylbenzeneethanol (1:1) 7177-43-7 Compenamine EINECS 230-537-8 Ephenamine penicilline l-Ephenamine penicillin G