| Last month more than 1,300 kilograms of ammonium nitrate were stolen in a raid on a quarry. |
| Studies of multidrug-resistant proteins have demonstrated two types of residues involved in binding to quaternary ammonium compounds. |
| Similar compounds, with the same possible adverse effects, are ammonium alginate, sodium alginate, and propylene glycol alginate. |
| Their activity may be enhanced by using membrane-disrupting surfactants such as quaternary ammonium compounds. |
| A major national supplier announced it would stop selling ammonium nitrate as its easy accessibility questioned local safety. |
| Glycinebetaine is a quaternary ammonium compound that occurs naturally in a wide variety of plants, animals and microorganisms. |
