Umbelliferone can be used: · To synthesize fluorescent probes to detect cyanide anions in water at biological pH and for in vitro and in vivo detection of hydrogen peroxide. · In the preparation of coumarin-based polymer as optical data storage material. · As a precursor to synthesize novobiocin derivatives that exhibit antibacterial agents as well as inhibitors of DNA gyrase. · As the starting material to synthesize (+)-decursinol and (+)-angelmarin

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