Thermo Fisher, B10570, Biotin-4-Fluorescein

Biotin-4-Fluorescein Biotin-4-fluoresceincan be used to quantitate available biotin-binding sites or the concentration of avidin or streptavidin through the strong quenching associated when this molecule binds to avidin.
To make a concentrated stock solution of up to 1 mM, dissolve in either anhydrous DMSO, DMF or 100% methanol. Stock solutions should be stored frozen, desiccated and protected from light.
Emission: 523 nm
Excitation: 494 nm
Label or Dye: FITC (Fluorescein)
Molecular Weight (g/mol): 644.
7
Product Type: Biotin-4-Fluorescein
Quantity: 5 mg
Shipping Condition: Room Temperature
Unit Size: Each