S-Propyl thioacetate is primarily used as a flavoring agent in the food industry due to its distinctive aroma and taste. It imparts a garlic-like or onion-like flavor, making it a valuable additive in savory food products such as sauces, seasonings, and processed meats. Additionally, it finds application in the fragrance industry, where it is incorporated into perfumes and scented products to provide a unique, pungent note. Its chemical properties also make it useful in organic synthesis as an intermediate for producing other sulfur-containing compounds.