FlAsH-EDT2

Cat no: 012039

Supplier: United States Biological

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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. Melting Point: As reported Solubility: As reported Method for Determining Identity: Proton NMR (CDCl3) Spectroscopic and Mass Spectrometric Analysis Atmosphere: Inert gas TLC Conditions: As reported Elemental Analysis: (Calculated): %C: 43.38, %H 2.73 Storage and Stability: May be stored at RT for short-term only. Long-term storage is recommended at -20 degrees 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 Note: This 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:

Catalogue number:	012039
Size:	25mg
Form:	As reported
Purity:	~90%
Alternative names:	4',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;
References:	Gaietta, G., et al.: Science, 296, 503 (2002), Hoffmann, C., et al.: Nature Methods, 2, 171 (2005), Dyachok, O., et al.: Nature, 439, 349 (2006), Gautier, A., et al.: Chem. Biol., 15, 128 (2008),

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FlAsH-EDT2

Cat no: 012039

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