QSY-21
Based on 1 Customer Validation
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.
For research use only. We do not sell to patients.
- Purity: 98.77%
- CAS No.: 1200894-41-2
- Formula: C41H36ClN3O5S
- Molecular Weight:718.26
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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)
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Biological Activity
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Chemical Information
- Purity & Documentation
- References
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Help & FAQs
Biological Activity
Chemical Information
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CAS No. 1200894-41-2
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Appearance Solid
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Molecular Weight 718.26
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Formula C41H36ClN3O5S
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Color Dark purple to black
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SMILES
O=C(C1CCN(S(=O)(C2=C(C3=C4C=CC(N5C6=C(CC5)C=CC=C6)=CC4=[O+]C7=C3C=CC(N8C9=C(CC8)C=CC=C9)=C7)C=CC=C2)=O)CC1)O.[Cl-]
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Shipping
Room temperature in continental US; may vary elsewhere.
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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)
Purity & Documentation
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Data Sheet (272 KB)
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SDS (252 KB)
- English - EN (252 KB)
- Français - FR (252 KB)
- Deutsch - DE (252 KB)
- Norwegian - NO (252 KB)
- Español - ES (252 KB)
- Swedish - SV (252 KB)
- Italian - IT (252 KB)
- Korean - KR (252 KB)
- Portuguese - PT (252 KB)
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Handling Instructions (2659 KB)
References
Calculators
Concentration (start) × Volume (start) = Concentration (final) × Volume (final)
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