Dimethyl sulfite is widely used as a solvent in various chemical reactions, particularly in organic synthesis, due to its ability to dissolve a range of substances. It serves as a methylating agent in the production of pharmaceuticals and agrochemicals, where it introduces methyl groups into target molecules. In the polymer industry, it acts as a stabilizer and plasticizer, enhancing the flexibility and durability of materials. Additionally, it is employed in the synthesis of specialty chemicals, including fragrances and flavors, where its reactivity and mild odor are advantageous. Its role as an intermediate in the production of other sulfur-containing compounds further expands its utility in industrial applications.