Quaternary ammonium compounds. No. 2,459,062.
D000641:Ammonia; D064751:Ammonium Compounds; D003879:Dermatologic Agents; D000644:Quaternary Ammonium Compounds
D064751:Ammonium Compounds; D003879:Dermatologic Agents; D000644:Quaternary Ammonium Compounds; D000641:Ammonia
AMMONIA AND AMMONIUM COMPOUNDS