The cell-impermeant ratiometric pH indicator SNARF™-5F 5-(and-6)-carboxylic acid (pKa of ∼7.2) exhibits a significant pH-dependent emission shift from yellow-orange toRead more
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Catalog Number
Quantity
S23922
also known as S-23922
1 mg
Catalog number S23922
also known as S-23922
Price (USD)/ Each
518.00
Add to cart
Quantity:
1 mg
Price (USD)/ Each
518.00
Add to cart
The cell-impermeant ratiometric pH indicator SNARF™-5F 5-(and-6)-carboxylic acid (pKa of ∼7.2) 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.