DusQ® 21 carboxylic acid

DusQ® 21 Carboxylic acids

Cat. #	Quantity	Price	Lead time
28D90	5 mg	–	in stock
48D90	25 mg	$290	in stock
68D90	100 mg	$885	in stock

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DusQ® 21 is a fluorescence quencher. DusQ 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.

DusQ 21 has intense absorption maximum at 656 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.

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Absorption spectrum of DusQ 21

General properties

Appearance:	dark purple powder
Molecular weight:	718.28
Molecular formula:	C₄₁H₃₆ClN₃O₅S
Quality control:	NMR ¹H and HPLC-MS (95+%)
Storage conditions:	24 months after receival at -20°C in the dark. Transportation: at room temperature for up to 3 weeks. Desiccate.
MSDS:	Download
	Product specifications

Spectral properties

Excitation/absorption maximum, nm:	656
ε, L⋅mol⁻¹⋅cm⁻¹:	72800

This Product is offered and sold for research purposes only. It has not been tested for safety and efficacy in food, drug, medical device, cosmetic, commercial or any other use. Supply does not express or imply authorization to use for any other purpose, including, without limitation, in vitro diagnostic purposes, in the manufacture of food or pharmaceutical products, in medical devices or in cosmetic products.