Fluorescamine

from Wikipedia, the free encyclopedia
Structural formula
Structure of fluorescamine
General
Surname Fluorescamine
other names

4-Phenylspiro- [furan-2 (3 H ), 1-phthalan] -3,3′-dione ( IUPAC )

Molecular formula C 17 H 10 O 4
Brief description

White dust

External identifiers / databases
CAS number 38183-12-9
EC number 253-814-5
ECHA InfoCard 100.048.904
PubChem 37927
Wikidata Q238913
properties
Molar mass 278.26 g mol −1
Physical state

firmly

Melting point
  • 153-157 ° C
  • 154-155 ° C
safety instructions
GHS labeling of hazardous substances
no GHS pictograms
H and P phrases H: no H-phrases
P: no P-phrases
As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Fluorescamine is an organic spiro compound that is used in protein analysis .

Fluorescamin is used for fluorescent labeling of amino acids , peptides , sulfonamides and proteins in the picomole range for chromatography and gel electrophoresis . A "free" amino group is derivatized with the reagent:

Derivatization of amino acids with fluorescamine

Fluorescamine shows no fluorescence without derivatisation, the derivative can be excited at 390 nm and then emits at 475 nm. The fluorescence optimum is at pH 9 and fluorescamine is not stable in aqueous solution, so the method is not widely used.

Individual evidence

  1. a b c d Data sheet Fluorescamine at Sigma-Aldrich , accessed on April 12, 2017 ( PDF ).
  2. European Pharmacopoeia , Deutscher Apotheker Verlag Stuttgart, 6th edition, 2008, p. 605, ISBN 978-3-7692-3962-1 .
  3. Entry on fluorescamine. In: Römpp Online . Georg Thieme Verlag, accessed on April 12, 2017.
  4. Monika Jansohn, Sophie Rothhämel (eds.): Genetic methods: a collection of work instructions for the molecular biological laboratory . 5th edition. Spectrum, Akad. Verl., Heidelberg 2012, ISBN 978-3-8274-2429-7 , pp. 66 .
  5. ^ Friedrich Lottspeich, Joachim W. Engels (Ed.): Bioanalytik . 3. Edition. Springer Spectrum, Berlin / Heidelberg 2012, ISBN 978-3-8274-2942-1 , p. 339 f .