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 N,N'-bis(phenylmethyl)-1,2-ethanediamine (2:1), mixt. with 2-(diethylamino)ethyl 4-aminobenzoate mono((2S-(2alpha,5alpha,6beta))-3,3-dimethyl-7-oxo-6-((phenylacetyl)amino)-4-thia-1-azabicyclo(3.2.0)heptane-2-carboxylate) 8069-87-2 Bicillin C-R