$174.00 – $434.00
SBFI AM is a ratiometric sodium indicator. UV-excitable. Membrane-permeable.
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Emission: 505 nm
Kd: 4 mM
MW: 1127 g/mol
Solubility: DMSO
Purity: >90%
Filter Set: Fura-2
Storage: -20°C
Size: 1 mg, 20 x 50 ug, 5 x 50 ug
CAS Number: 129423-53-6
SBFI is a UV-excitable, ratiometric green indicator for intracellular sodium (Na⁺) measurements. Ex/Em: 340/505 nm can be used to measure Na⁺-bound SBFI, and Ex/Em: 380/505 nm can be used to detect Na⁺-free SBFI. It is ~18X more selective for Na⁺ over K⁺. Ratiometry is optimal for imaging applications where quantification of intracellular Na⁺ concentrations is desired, and reduces effects of photobleaching, heterogenous dye loading, and variable cell morphology.