Formic acid propyl ester is primarily used as a flavoring agent in the food industry due to its fruity and rum-like aroma. It is commonly incorporated into products such as baked goods, candies, and beverages to enhance their flavor profiles. In the pharmaceutical sector, it serves as a solvent or intermediate in the synthesis of various drugs and active ingredients. Additionally, it finds application in the production of fragrances and perfumes, where its pleasant scent is utilized to create appealing aromas. In industrial settings, it acts as a solvent for resins, coatings, and other chemical processes. Its versatility makes it a valuable component across multiple industries.