(R)-2-Amino-2-[(5-fluoresceinyl)aminocarbonyl]ethyl Methanethiosulfonate, Trifluoroacetate Salt (MTSEA-Fluorescein)
Katalog-Nummer A1377-80-5mg
Size : 5mg
Marke : US Biological
Grade
Highly PurifiedShipping Temp
RTStorage Temp
-20°CMTSEA-Fluorescein Trifluoroacetic Acid Salt
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
Fluorescence: max. Abs. 492nm; max. Em. 515nm; e x 10-3: 75
Synonyms:
MTSEA-Fluorescein Trifluoroacetic Acid Salt
CAS Number:
1356019-48-1
Free Base: 1356019-47-0
Free Base: 1356019-47-0
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.
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