Used in organic synthesis as a disulfide coupling reagent, particularly in the formation of biologically active molecules. Serves as an intermediate in pharmaceuticals and agrochemicals due to its ability to introduce methoxyphenylmethyl thiol groups. Also applied in the development of flavor and fragrance compounds, where it contributes to sulfur-containing aroma profiles. Its disulfide bond allows use in reversible cross-linking applications, useful in polymer chemistry and protective group strategies.