3841-12-1 4-Thia-1-azabicyclo(3.2.0)heptane-2-carboxylic acid, 3,3-dimethyl-7-oxo-6- (2-phenylacetamido)-, compd. with alpha,alpha'-(ethylenediimino)di-o-cresol Oxybicillin Penicillin G, compd. with alpha,alpha'-(ethylenediimino)di-o-cresol