G Procaine, Penicillin
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 2-(Diethylamino)Ethyl 4-Aminobenzoate (1:1) Monohydrate