Anhydrous acetonitrile is widely used as a solvent in the purification of pharmaceuticals due to its ability to dissolve a wide range of compounds. It is particularly valuable in high-performance liquid chromatography (HPLC) as a mobile phase for analyzing and separating complex mixtures. In organic synthesis, it serves as a polar aprotic solvent, facilitating reactions like nucleophilic substitutions and polymerizations. Additionally, it is employed in the extraction of fatty acids and as a solvent for DNA synthesis. Its low UV cutoff makes it suitable for UV-spectroscopy applications. Anhydrous acetonitrile is also utilized in the production of batteries, particularly in lithium-ion batteries, as an electrolyte component. Its drying properties are leveraged in laboratories to remove water from other solvents or chemicals.