Used as a key intermediate in the synthesis of anticoagulant drugs, particularly in the production of novel vitamin K antagonists. It serves as a building block for coumarin-based derivatives that exhibit strong blood-thinning properties. Its structure allows for easy modification to enhance pharmacokinetic properties such as bioavailability and metabolic stability. Also explored in medicinal chemistry for developing new anti-thrombotic agents with improved safety profiles. Additionally, it finds use in research settings for structure-activity relationship (SAR) studies of coumarin analogs.