Used as an intermediate in the synthesis of dyes and pigments, particularly for azo dyes that require aromatic amines with sulfur functionality. Serves in the development of certain pharmaceuticals, where the methylamino and thiol groups contribute to molecular binding and activity. Employed in the preparation of rubber chemicals and antioxidants due to its ability to participate in sulfur-based crosslinking and radical scavenging. Also utilized in the creation of specialty polymers and ligands for metal coordination in catalysis.