QSY-21

Overview

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.

Application

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Product Information

• Catalog No.: HY-173308
• CAS No.: 1200894-41-2
• Molecular Formula: C41H36ClN3O5S
• Molecular Weight: 718.26
• Purity: 98.77%
• Storage: 4°C, sealed storage, away from moisture and light * In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture and light)
• Availability: In-stock

Source

Original product source