(R)-2-Amino-2-[(5-fluoresceinyl)aminocarbonyl]ethyl Methanethiosulfonate, Trifluoroacetate Salt (MTSEA-Fluorescein)

Katalog-Nummer A1377-80-5mg

Size : 5mg

Marke : US Biological

Contact local distributor :


Telefonnummer : +1 850 650 7790


Grade
Highly Purified

Shipping Temp
RT

Storage Temp
-20°C

MTSEA-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

Synonyms:
MTSEA-Fluorescein Trifluoroacetic Acid Salt

CAS Number:
1356019-48-1
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