85-1466-08　(R)-2-Amino-2-[(5-fluoresceinyl)aminocarbonyl]ethyl Methanethiosulfonate, Trifluoroacetate Salt (MTSEA-Fluorescein) 5mg　A1377-80

特徴

• A thiol specific fluorescent probe useful for ion channel and protein topology research. The recently available MTS-fluorophores may find application in the real-time monitoring of conformational changes, since fluorophores coupled to introduced cysteines can change their fluorescence during a conformational change. Fluorescence lifetime may also yield information regarding distances and molecular motion in a protein molecule.Fluorescence: max. Abs. 492nm; max. Em. 515nm; e x 10-3: 75
• Synonyms:MTSEA-Fluorescein Trifluoroacetic Acid Salt
• Molecular Formula:C₂₆H₂₁F₃N₂O₁₀S₂
• Molecular Weight:642.58
• Purity:≥95%
• Appearance:Yellow to orange solid
• Melting Point:>130°C (dec.)
• Solubility:DMSO (Slightly)
• Atmosphere:Inert
• Method for Determining Identity:Proton NMR and Mass Spectrometric Analysis
• TLC Conditions:SiO2; Dichloromethane: Methanol=9:1; Visualized with UV, KMnO4 and Naked Eye; Single spot, Rf=0.50
• Elemental Analysis:Calculated: %C: 48.60, %H: 3.29, %N: 4.36
• TFA Content (Ion Chromatography):As reported
• Water Content (Karl Fischer):As Reported
• Storage and Stability:May be stored at RT for short-term only. Long-term storage is recommended at -20°C. Stable for 6 months after receipt. Hygroscopic. Store under inert atmosphere.