Tide Fluor(TM) 2WS Maleimide [TF2WS Maleimide] *Superior replacement for FITC*

Ex: 502 nm. Em: 525 nm. Soluble in: DMSO. 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 have 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. Tide Fluor(TM) 2WS maleimide selectively reacts with thio group under mild conditions (pH 5-7). It is an excellent replacement to Alexa Fluor 488 maleimide.