Acetylsalicylsalicylic acid is used primarily as an intermediate in the synthesis of pharmaceuticals. It plays a key role in the development of anti-inflammatory, analgesic, and antipyretic medications. Additionally, it is utilized in research settings to study its metabolic pathways and potential therapeutic effects. Its derivatives are also explored for their antiplatelet properties, making it relevant in cardiovascular disease prevention. In industrial applications, it serves as a precursor in the manufacture of other organic compounds.