Fluorescamine

Source: Wikipedia, the free encyclopedia.
Fluorescamine[1]
Names
IUPAC name
4'-phenylspiro[2-benzofuran-3,2'-furan]-1,3'-dione
Other names
Fluram
Identifiers
3D model (
JSmol
)
ChemSpider
ECHA InfoCard
 100.048.904 Edit this at Wikidata
MeSH D005450
UNII
  • InChI=1S/C17H10O4/c18-15-13(11-6-2-1-3-7-11)10-20-17(15)14-9-5-4-8-12(14)16(19)21-17/h1-10H
    Key: ZFKJVJIDPQDDFY-UHFFFAOYSA-N
  • C1=CC=C(C=C1)C2=COC3(C2=O)C4=CC=CC=C4C(=O)O3
Properties
C17H10O4
Molar mass 278.26 g/mol
Melting point 153 to 157 °C (307 to 315 °F; 426 to 430 K)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Fluorescamine is a spiro compound that is not fluorescent itself, but reacts with primary amines to form highly fluorescent products, i.e. it is fluorogenic. It hence has been used as a reagent for the detection of amines and peptides.[2] 1-100 μg of protein and down to 10 pg of protein can be detected.[3][4] Once bound to protein the excitation wavelength is 381 nm (near ultraviolet) and the emission wavelength is 470 nm (blue).[5] This method is found to suffer from high blanks resulting from a high rate of hydrolysis due to requiring a large excess concentration.[6] Alternative methods are based on ortho-phthalaldehyde (OPA), Ellman's reagent (DTNB), or epicocconone.

Reaction

Reaction of fluorescamine with an amine

See also

References

  1. ^ Fluram at Sigma-Aldrich
  2. doi:10.1016/S0021-9673(00)82285-2
    .
  3. PMID 4736505
    .
  4. Fluoprobes
  5. ^ Biotium. "Fluorescamine PRODUCT AND SAFETY DATA SHEET" (PDF). Biotium. Retrieved 21 February 2023.
  6. ^ [1]


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