Shikimic acid is primarily used as a key intermediate in the synthesis of oseltamivir phosphate, the active ingredient in the antiviral drug Tamiflu, which is effective against influenza viruses. It serves as a critical starting material in the pharmaceutical industry for producing medications that combat flu outbreaks. Additionally, shikimic acid is studied for its potential antioxidant and anti-inflammatory properties, making it a subject of interest in developing treatments for various health conditions. It is also utilized in research to understand metabolic pathways in plants and microorganisms, contributing to advancements in biochemistry and biotechnology.