SY-21 DBCO (QSY®-21 equivalent) is a non-fluorescent acceptor dye commonly used to prepare peptide and oligonucleotide FRET probes. The broad and intense quenching range from 580 nm to 680 nm makes it useful as an acceptor in fluorescence resonance energy transfer (FRET) applications in combination with fluorescent dyes from 580 nm to 680 nm, such as Fluorescein, Alexa Fluor® 568, 594, Alexa fluor 633, Alexa fluor 647 dye, TAMRA fluorophore, ROX, Texas Red and Cy5.
AxisPharm offers 5000+ PEG Linkers with high purity. Different kinds of PEG Reagents may be available by custom synthesis.
