title: Some quaternary ammonium salts of heterocyclic bases.
authors.forename: J L
authors.initials: JL
authors.lastname: HARTWELL
authors.forename: S R L
authors.initials: SR
authors.lastname: KORNBERG
mesh_terms: D064751:Ammonium Compounds; D000644:Quaternary Ammonium Compounds; D012492:Salts
chemical_list: D064751:Ammonium Compounds; D000644:Quaternary Ammonium Compounds; D012492:Salts