Used primarily in organic synthesis, this compound serves as a key reagent for introducing the isothiocyanate functional group into various molecules. It is particularly valuable in the preparation of thiourea derivatives, which are important intermediates in pharmaceuticals and agrochemicals. Additionally, it is employed in the modification of peptides and proteins, aiding in the study of their structure and function. Its reactivity with amines makes it useful in labeling and detecting amino groups in biochemical assays. The compound also finds applications in the development of dyes and pigments due to its ability to form stable colored complexes.