quaternary ammonium compoundshttp://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31343359enGetty Institute2026-03-30 20:32:36http://AATesaurus.cultura.gencat.cat/aat/getty_enTesaurus d'Art i Arquitecturatext/html QACs compounds, quaternary ammonium quaternary ammonium compound quaternary ammonium salts