Used in pharmaceutical research as a chiral building block for synthesizing antiviral drugs, including Tamiflu (oseltamivir). Serves as a precursor in the production of shikimic acid pathway intermediates. Employed in analytical chemistry as a reference standard for metabolic studies. Found in natural sources like coffee and plants, it contributes to the study of plant metabolism and human dietary polyphenol absorption. Also investigated for its antioxidant properties and potential role in reducing oxidative stress.