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MQAE

MQAE (N-(Ethoxycarbonylmethyl)-6-methoxyquinolinium bromide) is an improved chloride indicator that has greater sensitivity to chloride than SPQ, and higher fluorescence quantum yield.

Product Attributes

CAS number

162558-52-3

Applications

Chloride indicators

Cell permeability

Membrane permeant

Colors

Blue

Excitation/Emission

350/460 nm

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100 mg
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Product Description

MQAE (N-(Ethoxycarbonylmethyl)-6-methoxyquinolinium bromide) is an improved chloride indicator that has greater sensitivity to chloride (Ksv= 200M-1) than SPQ (Ksv=118 M-1) and higher fluorescence quantum yield. The ester group of MQAE may slowly hydrolyze inside cells, resulting in a change in its fluorescence response.

  • White solid soluble in water and DMSO
  • Store at 4°C and protect from light, especially in solution
  • λExEm= 350/460 nm
  • ε (344 nm, H2O) = 2,800
  • C14H16BrNO3
  • MW: 326.19
  • [162558-52-3]

References

1. Am J Physiol 259, C375 (1990).

2. Anal Biochem 178, 355 (1989).

3. Anal Biochem 241, 51 (1996).

 

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