Used primarily as a derivatizing agent in analytical chemistry to enhance the detection of compounds in gas chromatography-mass spectrometry (GC-MS). It is particularly effective in converting polar compounds, such as alcohols and amines, into less polar derivatives, improving their volatility and stability for analysis. Additionally, it serves as a solvent in organic synthesis, facilitating reactions that require a polar aprotic medium. Its unique properties make it valuable in the study of complex organic molecules and in the development of pharmaceuticals and agrochemicals.