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Product details
Catalog number 3033B
Price for 3033B
Size / count 1 mg
Ratiometric potassium indicator, membrane impermeable Excitation: 340, 380 nm | Emission: 505 nm | Kd: 5 mM PBFI is a UV-excitable, ratiometric green 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. PBFI K⁺ salt is a membrane impermeable form of PBFI that can be used in lipid membrane-free systems, in liposomes, or can be introduced into cells by electroporation, microinjection or other methods.
The catalog number for PBFI K+ Salt - green fluorescent potassium indicator is 3033B.
PBFI K+ Salt - green fluorescent potassium indicator is available in the following size(s): 1 mg.
PBFI K+ Salt - green fluorescent potassium indicator is currently made to order / not held in immediate stock. Contact us for lead time.
Ratiometric potassium indicator, membrane impermeable Excitation: 340, 380 nm | Emission: 505 nm | Kd: 5 mM PBFI is a UV-excitable, ratiometric green 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 t
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Endotoxin testing status is noted on the datasheet where applicable, particularly for recombinant proteins intended for cell-based or functional assays. If this isn’t listed and you need confirmation, contact support with the catalogue number.
Additional data may be available on request. Contact our technical support team with the catalogue number and we’ll check what supporting documentation the supplier can provide.
