DusQ® 2 NHS ester

NHS esters DusQ® 2

Cat. #	Quantity	Price	Lead time
22D20	5 mg	–	in stock
42D20	25 mg	$315	in stock
52D20	50 mg	$580	in stock
62D20	100 mg	$885	in stock

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DusQ® 2 succinimidyl ester is a derivative with an amine reactive group for labeling with the amine-modified oligonucleotides, amine-containing proteins and other molecules. DusQ 2 is a nonfluorescent quencher with an absorbance maximum of 552 nm. It is useful as an acceptor in fluorescence resonance energy transfer (FRET) applications, nucleic acid assays in conjunction with yellow and orange to red emitting dyes such as Cyanine3, Cyanine5, ROX, Texas Red, AF 555, AF 594, AF 647.

NHS ester function allows to conjugate the quencher to various biomolecules of interest, and also to prepare oligonucleotides with DusQ 2.

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Absorption spectrum of DusQ 2

Recommended protocol

NHS Ester Labeling of Biomolecules Containing Primary Amino Groups

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Protein labeling calculator

General properties

Appearance:	dark colored solid
Molecular weight:	631.64
Molecular formula:	C₃₁H₃₃N₇O₈
Solubility:	good in chlorinated organic solvents, DMSO, DMF
Quality control:	NMR ¹H, HPLC-MS (95%)
Storage conditions:	Storage: 12 months after receival at -20°C in the dark. Transportation: at room temperature for up to 3 weeks. Avoid prolonged exposure to light. Desiccate.
MSDS:	Download
	Product specifications

Spectral properties

Excitation/absorption maximum, nm:

552

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.