69-57-8,Penicillin G sodium salt,Sodium [2S-(2alpha,5alpha,6beta)]-3,3-dimethyl-7-oxo-6-(phenylacetamido)-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylate; 3,3-Dimethyl-7-oxo-6-(2-phenyl-acetamido)-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid monosodium salt; Benzylpenicillin sodium salt