3 Results for "

QSY 21 NHS

" in MedChemExpress (MCE) Product Catalog:
Products (3)

3 Results for "QSY 21 NHS" in MCE Product Catalog:

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 .
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Cat. No.: HY-D2477
CAS No.: 1974271-78-7
Target:  

Fluorescent Dye

Research Areas:  

Cancer

Sulfo-QSY21-NHS is an N-hydroxysuccinimide ester derivative fluorescent quencher that reduces the fluorescence intensity of paired fluorophores via proximity effect and relieves quenching after linker extension induced by mechanical force. Sulfo-QSY21-NHS can label streptavidin through NHS ester bioconjugation and be integrated into fluorescence-based molecular tension sensors to map the mechanical forces of cell surface receptors. Sulfo-QSY21-NHS also serves as a quencher for cysteine cathepsin-targeted quenched fluorescent substrate probes, and is widely used in studies related to breast cancer, colorectal cancer and lung adenocarcinoma .
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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 .
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