Methyl thiosalicylate is primarily used in the fragrance and flavor industry due to its distinctive odor profile. It is often incorporated into perfumes and cosmetic products to add a unique, spicy, and slightly medicinal aroma. In flavor formulations, it can be used to impart a subtle, complex note to certain food products. Additionally, it finds application in organic synthesis as an intermediate for the production of other chemical compounds, particularly in the development of pharmaceuticals and agrochemicals. Its versatility in both industrial and laboratory settings makes it a valuable component in various chemical processes.