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SPQ

The fluorescence of SPQ is specifically quenched by chloride via collision. Therefore, chloride concentration is measured by monitoring the degree of fluorescence decrease.

Product Attributes

CAS number

83907-40-8

Applications

Chloride indicators

Cell permeability

Membrane impermeant

Colors

Blue

Excitation/Emission

344/443 nm

Size
Catalog #
price
Qty
50 mg
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Protocols
SDS

Product Description

The fluorescence of SPQ is specifically quenched by chloride via collision. Therefore, chloride concentration is measured by monitoring the degree of fluorescence decrease. The dye can be loaded into cells by hypotonic shock.

  • White solid soluble in H2O and DMSO
  • Store at 4°C. Protect from light, especially in solution.
  • λExEm= 344/443 nm
  • ε (344 nm, H2O) = 3,700
  • C15H15NO4S
  • MW: 281
  • [83907-40-8]

References

1. Neurosci Lett 104, 326 (1989).

2. Biophys J 56, 1071 (1989).

3. J Biol Chem 266, 20590 (1991).

 

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