PeptideDB

QSY 21 NHS

CAS: 304014-13-9 F: C45H39ClN4O7S W: 815.33

QSY 21 NHS, a dark quencher is an efficient energy transfer acceptor of the far red and NIR fluorescent probes. QSY 21 N
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This product is for research use only, not for human use. We do not sell to patients.

Bioactivity QSY 21 NHS, a dark quencher is an efficient energy transfer acceptor of the far red and NIR fluorescent probes. QSY 21 NHS works inthe wavelength range of 540-750 nm, and is frequently used in FRET applications. QSY 21 NHS does not emit fluorescence in normal conditions. NHS esters can be used to label the primary amines (R-NH2) of proteins, amine-modified oligonucleotides, and other amine-containing molecules[1].
CAS 304014-13-9
Formula C45H39ClN4O7S
Molar Mass 815.33
Transport Room temperature in continental US; may vary elsewhere.
Storage

Please store the product under the recommended conditions in the Certificate of Analysis.

Reference [1]. Kabelác M, et al. A comparative study of the binding of QSY 21 and Rhodamine 6G fluorescence probes to DNA: structure and dynamics. Phys Chem Chem Phys. 2010 Sep 7;12(33):9677-84.