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PBFI TMA+ Salt is a  cell impermeant fluorescent K+ binding potassium indicator.   Kd = 5 mM. PBFI TMA+ Salt

Membrane-impermeant, ratiometric K+ indicator.

Excitation: _340/380 nm_
Emission: --505 nm_
Kd: _145 mM_

Price: $330.00
Buy SBFI K+ SALT, a sodium-sensitive molecule to measure intracellular NA+ levels. Cell-impermeant acid salt SBFI K+ SALT

Membrane-impermeant, ratiometric Na+ indicator.

Excitation: _340/380 nm_
Emission: --505 nm_
Kd: _4 mM_

Price: $355.00
Buy SBFI, a sodium-sensitive molecule to measure intracellular NA+ levels SBFI AM

Membrane-permeant, ratiometric Na+ indicator.

Excitation: _340/380 nm_
Emission: --505 nm_
Kd: _ 4 mM_

Price: $475.00
PBFI AM is a fluorescent K+ binding potassium indicator. Cell-permeable.  Kd = 5 mM. Non-specific esterases hydrolyze the AM esters to produce the water-soluble form of PBFI. PBFI AM

Membrane-permeant, ratiometric K+ indicator.

Excitation: _340/380 nm_
Emission: --505 nm_
Kd: _5 mM_

Price: $550.00