DDAC — a colorless, odorless quaternary ammonium compound used as a disinfectant and tenside — was not approved as an ingredient for the plant - strengthening product, Vi - Care. (treehugger.com)
Kraft Foods Inc, whose brands include Chips Ahoy cookies and Velveeta cheese, is one company that uses very small amounts of ammonium compounds in some of its products. (articles.chicagotribune.com)
Fabric softener liquids and sheets that are made with quarternary ammonium compounds to give them antibacterial properties. (heyhashi.org)