Thermo Fisher, S23921, SNARF™-4F 5-(and-6)-Carboxylic Acid, Acetoxymethyl Ester, Acetate - Special Packaging

SNARF™-4F 5-(and-6)-Carboxylic Acid, Acetoxymethyl Ester, Acetate - Special Packaging The cell-permeant ratiometric pH indicatorSNARF™-4F 5-(and-6)-carboxylic acid, acetoxymethyl ester, acetate(pKaof ∼6.
4) exhibits a significant pH-dependent emission shift from yellow-orange to deep red fluorescence under acidic and basic conditions, respectively. This pH dependence allows the ratio of the fluorescence intensities from the dye at two emission wavelengths - typically 580 nm and 640 nm - to be used for quantitative determinations of pH.
Learn more about ion indicators including calcium, potassium, pH, and membrane potential indicators ›Detection Method: Fluorescence
Dye Type: Fluorescent Dye-Based
Indicator: pH Indicator
Quantity: 20 x 50 μg
Shipping Condition: Room Temperature
For Use With (Equipment): Fluorescence Microscope, Flow Cytometer, Microplate Reader
Product Line: SNARF
Product Type: pH Indicator
Unit Size: Each