IPG-4 TMA⁺ Salt

$290.00

Yellow-green fluorescent, potassium (K⁺) indicator, membrane impermeable. Higher K⁺ affinity than IPG-1 and IPG-2

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SPECIFICATIONS

Excitation:

525 nm 

Emission:

545 nm 

Kd:

7 mM

MW:

1336

Solubility:

H2O

Synonyms: Asante Potassium Green, Ion Potassium Green, APG, IPG, APG-4, IPG-4
Product code:  10 x 50ug: 3023F/ 500ug: 3023C

product description

ION Potassium Green – 4 (IPG-4) is a yellow-green fluorescent, intracellular potassium (K⁺) indicator with Ex/Em: 525 nm/545 nm and a high-sensitivity to detect small changes in K⁺ concentration. IPG-4 has the highest affinity (Kd = 7 mM) among IPG analogues – IPG-2 (Kd = 18 mM) and IPG-1 (Kd = 50 mM).

IPG-4 TMA⁺ salt is a membrane impermeable form of IPG-4 that can be used in lipid membrane-free systems, in liposomes, or can be introduced into cells by electroporation, microinjection or other methods. IPG-4 has been successfully used as a sensor for extracellular K⁺.

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