$168.00 – $420.00
PBFI AM is a ratiometric potassium indicator, membrane-permeable.
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Size: 5 x 50 ug
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3031G
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$168.00
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Size: 1 mg
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3031B
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$420.00
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Size: 20 x 50 ug
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3031E
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$420.00
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Emission: 505 nm
Kd: 4 mM
MW: 1171 g/mol
Solubility: DMSO
Purity: >95%
Filter Set: Fura-2
Storage: -20°C
CAS Number: 124549-23-1
PBFI is a UV-excitable, green ratiometric indicator for intracellular potassium (K⁺) measurements. Ex/Em: 340/505 nm can be used to measure K⁺-bound PBFI, and Ex/Em: 380/505 nm can be used to detect K⁺-free PBFI. It is 1.5X more selective for K⁺ over Na⁺, and works well in cytosolic conditions where [K⁺]/[Na⁺] is ~10. Ratiometry is optimal for imaging applications where quantification of intracellular K⁺ concentrations is desired, and reduces effects of photobleaching, heterogenous dye loading, and variable cell morphology.
