title: Quaternary ammonium salts of heptacaine.
mesh_terms: D000779:Anesthetics, Local; D055598:Chemical Phenomena; D002621:Chemistry; D010880:Piperidines; D000644:Quaternary Ammonium Compounds
chemical_list: D000779:Anesthetics, Local; D010880:Piperidines; D000644:Quaternary Ammonium Compounds; C013549:heptacaine