Product ID: M1251

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Blue-green fluorescent coumarin derivative useful for staining cells and tissues. Also used as a laser dye and for doping in polymer applications.

This coumarin derivative has a longer wavelength that has found use as a laser dye and for doping in polymer applications. It is also the base fluorophore and reference standard for some fluorogenic substrates.

Technical Data
SKU M1251
CAS Number 64887-40-7
Unit Size 100mg
Alternative Names 3-(2-Benzoxazolyl)-7-hydroxycoumarin
Absorption 410nm
Emission Wavelength 468
Detection Method Fluorescence
Molecular Formula C₁₆H₉NO₄
Molecular Weight 279.25
Soluble In DMSO
Storage Conditions Room Temperature, Protect From Light

References and Citations


  • Koller, E, Wolfbeis, OS, (1985), "Syntheses and spectral properties of longwave absorbing and fluorescing substrates for the direct and continuous kinetic assay of carboxylesterases, phosphatases, and sulfatases." Monatshefte fuer Chemie 116(1): 65-75.
  • Elnagdi, MH, Abdallah, SO, Ghoneim, KM, Ebied, EM, Kassab, KN, (1997), "Synthesis of some coumarin derivatives as potential laser dyes." Journal of Chemical Research, Synopses (2): 44-45.
  • Wolfbeis, OS, Harnisch, H, "Chromogenic and fluorogenic carboxylic esters as agents for detecting and determining hydrolases." Ger. Offen.(1985) DE 3329394
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