Tide Fluor(TM) 2WS succinimidyl ester (TF2WS SE) *Superior replacement to FITC*

Tide Fluor(TM) 2WS (TF2WS) family has the spectral properties similar to those of fluorescein, DyLight 488 and Alexa Fluor 488. Compared to fluorescein probes TF2WS family has better water solubility. It has been used to label the hydrophobic peptides that hasve poor water solubility. Additionally their fluorescence is pH-independent from pH 3 to 11. These characteristics make this new dye family a superior alternative to fluorescein. In pairing with our Tide Quencher(TM) 2 (TQ2), a variety of FRET peptides and nucleotides can be developed for detecting proteases and molecular beacons with enhanced sensitivity and stability.