title: The lipophilic character of carboxy derivatives of penicillins, and its relation to their antibacterial activities.
mesh_terms: D000096:Acetone / Q000032:analysis; D002021:Buffers; D002264:Carboxylic Acids / Q000032:analysis; D002463:Cell Membrane Permeability; D002845:Chromatography; D002855:Chromatography, Thin Layer; D006863:Hydrogen-Ion Concentration; D006868:Hydrolysis; D010400:Penicillin G / Q000032:analysis*; D010404:Penicillin V / Q000032:analysis*; D013210:Staphylococcus / Q000187:drug effects; D013329:Structure-Activity Relationship
chemical_list: D002021:Buffers; D002264:Carboxylic Acids; D000096:Acetone; D010400:Penicillin G; D010404:Penicillin V