Product ID: M1280

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Blue fluorophore standard used for labeling and in enzyme assay systems.

7-Hydroxycoumarin, also known as umbelliferone, hydrangine, skimmetine, and beta-umbelliferone, is a widespread natural product of the coumarin family. It absorbs ultraviolet light strongly at several wavelengths and emits a bright blue fluorescence. It is used in sunscreens and has been reported to have antioxidant properties. Derivatives on the 7-hydroxy group are widely used in enzyme assay systems. It therefore represents a standard dye for these assay systems.

Technical Data
SKU M1280
CAS Number 93-35-6
Unit Size 100mg
Alternative Names Umbelliferone
Absorption 325nm
Emission Wavelength 452
Detection Method Fluorescence
Molecular Formula C₉H₆O₃
Molecular Weight 162.14
Storage Conditions Room Temperature

References and Citations


  • Liu J, Kang HC, Gee K, Langsdorf C, Bradford J, Buller G. (2016) "7-hydroxycoumarin-based cell-tracking reagents." U.S. Patent US 9400273 B1.
  • Pellizzoni E, Tommasini M, Marangon E, Rizzolio F, Saito G, Benedetti F, Toffoli G, Resmini M, Berti F. (2016) "Fluorescent molecularly imprinted nanogels for the detection of anticancer drugs in human plasma." Biosensors & Bioelectronics 86, 913-919.
  • Karthikeyan R, Kanimozhi G, Prasad NR, Agilan B, Ganesan M, Mohana S, Srithar G. (2016) " 7-​Hydroxycoumarin prevents UVB-​induced activation of NF-​κB and subsequent overexpression of matrix metalloproteinases and inflammatory markers in human dermal fibroblast cells." Journal of Photochemistry and Photobiology, B: Biology 161, 170-176.
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