Ammonium acetate is widely used in biochemical research as a buffering agent in HPLC and LC-MS analyses. It helps maintain a stable pH, which is crucial for the separation and detection of compounds. In molecular biology, it is employed in the precipitation of proteins and nucleic acids, aiding in the purification process. Additionally, it serves as a catalyst in organic synthesis, particularly in reactions like the Knoevenagel condensation. In the food industry, it is used as a preservative and acidity regulator. Its versatility also extends to being a component in fire extinguishers and as a diuretic in veterinary medicine.