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You are here:Home » Molecular Biology » MB-Fluorescent Labels » FlAsH-EDT2

FlAsH-EDT2

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Specifications

The Fluorescein Arsenical Hairpin Binder (FlAsH) method is presented for fluorescence labeling of proteins in living cells. Labeling proteins with the membrane-permeant fluorogenic biarsenical dye fluorescein arsenical hairpin binder-ethanedithiol (FlAsH-EDT2). The membrane-permeant fluorogenic biarsenicals FlAsH-EDT2 and ReAsH-EDT2 can be prepared in good yields by a straightforward two-step procedure from the inexpensive precursor dyes fluorescein and resorufin.
Catalog #012039
Melting PointAs Reported
SolubilityAs Reported
Method for Determining IdentityProton NMR (CDCl3) Spectroscopic and Mass Spectrometric Analysis
AtmosphereInert gas
TLC ConditionsAs Reported
Elemental AnalysisAs Reported
Storage and StabilityMay be stored at RT for short-term only. Long-term storage is recommended at -20°C. For maximum recovery of product, centrifuge the original vial prior to removing the cap. Light, temperature, and moisture sensitive. Store under inert atmosphere.
Important NoteThis product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications without the expressed written authorization of United States Biological.
Toxicity and Hazards 
All products should be handled by qualified personnel only, trained in laboratory procedures.
CAS Number212118-77-9
Molecular FormulaC24H18As2O5S4
Molecular Weight664.5
SourceSynthetic
Purity~90%
FormAs Reported
Important NoteThis product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications without the expressed written authorization of United States Biological.
Alternate names4',5'-Bis(1,3,2-dithiarsolan-2-yl)-3',6'-dihydroxyspiro[isobenzofuran-1(3H),9'-[9H]xanthen]-3-one; FlAsH; Fluorescein Arsenical Helix Binder; Lumio Green;


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