QSY-21, CAS 1200894-41-2

Product Description: 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.

Formula: C41H36ClN3O5S

References: [1]Takahashi S, et al. Reversible off-on fluorescence probe for hypoxia and imaging of hypoxia-normoxia cycles in live cells. J Am Chem Soc. 2012 Dec 5;134(48):19588-91.

CAS Number: 1200894-41-2

Molecular Weight: 718.26

Research Area: Others

Target: Fluorescent Dye

• SKU: MEXHY-173308-0
• Manufacturer: MedChemExpress
• Manufacturer SKU: HY-173308-0
• Package Unit: Get quote
• Quantity Unit: STK