85-1655-60　FlAsH-EDT2 10mg　CAS No:212118-77-9　012039

特徴

• 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.
• Synonyms: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
• Molecular Formula:C24H18As2O5S4
• Molecular Weight:664.5
• Purity:≥96%
• Appearance:White to pale orange solid
• Melting Point:>173ºC (dec)
• Solubility:Chloroform (Slightly, Heated), Methanol (Very Slightly, Heated)
• Method for Determining Identity:Proton NMR (CDCl3) Spectroscopic and Mass Spectrometric Analysis
• TLC Conditions:SiO2; Ethyl Acetate:Hexanes = 1:1; Visualized with UV and AMCS; SIngle Spot, Rf=0.50
• 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°C. For maximum recovery of product, centrifuge the original vial prior to removing the cap. Light and temperature sensitive. Store under inert atmosphere.