4 Results for "

QSY-21

" in MedChemExpress (MCE) Product Catalog:
Products (4)

4 Results for "QSY-21" in MCE Product Catalog:

Cat. No.: HY-173308
CAS No.: 1200894-41-2
QSY-21 is a fluorescence quencher. QSY-21 possesses broad absorption in far red and NIR range, and can quench fluorescence of dyes that emit in this region. This is a carboxylic acid derivative. QSY-21 has intense absorption maximum at 661 nm, making it useful as an acceptor in fluorescence resonance energy transfer (FRET) applications. It is a common quencher for Cyanine5, Cyanine5.5, AF 647, or other spectrally similar fluorescent dyes.
loading...
    loading...
Cat. No.: HY-D2365
CAS No.: 304014-13-9
QSY 21 NHS is a dark quencher and an efficient energy transfer acceptor for far-red and near-infrared fluorescent probes. QSY 21 NHS operates at a wavelength range of 540-750 nm and is commonly used in FRET applications. QSY 21 NHS does not fluoresce under normal conditions. The NHS ester can be used to label primary amines (R-NH2) of proteins, amine-modified oligonucleotides and other amine-containing molecules. QSY 21 NHS can be conjugated with dendritic poly-L-lysine to achieve intramolecular quenching of Cy5 fluorescence .
loading...
    loading...
Cat. No.: HY-D2477
CAS No.: 1974271-78-7
Sulfo-QSY21-NHS is a fluorescent dye, which contains a NHS group that can react with amine groups (-NH2) in proteins or other molecules to form stable amide bonds. Sulfo-QSY21-NHS can be used in the synthesis of activity-based probes (ABPs) .
loading...
    loading...
Cat. No.: HY-D1294
CAS No.: 788146-37-2
Target:  

Fluorescent Dye

Research Areas:  

Cancer

SY-21 NHS ester is a QSY-21 analog. QSY-21 is a specific quencher against A647. QSY-21 labels polymer. QSY-21 can be used in colon cancer research .
loading...
    loading...