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DusQ® 1 phosphoramidite

寡核苷酸合成 DusQ® 1 亚磷酰胺

目录号	数量	价格	提前通知时间
1470-100mg	100 mg	$290	现货
1470-500mg	500 mg	$990	现货
1470-1g	1 g	$1690	现货
1470-10g	10 g	请查询	现货

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DusQ^® 1 phosphoramidite is a true dark quencher with broad absorption curve which covers the visible spectrum with maximum in green to yellow region. It is used for the synthesis of dual labeled oligonucleotide probes for qPCR bearing 5′-quencher DusQ 1 and other FRET applications for multiplexing assays. Contains a DMT protection of the hydroxymethyl group, which allows oligonucleotide purification on cartridges.

DusQ 1 has a quenching range (QR) 480 - 580 nm to construct efficiently quenched qPCR probes paired with all common reporter dyes such as FAM, TET, JOE, HEX and Cyanine3 with high quenching efficiency, and form completely non-fluorescent complexes.

Usage

Coupling: 6 minutes coupling time recommended.

Deprotection: for 2 h at RT using ammonium hydroxide, or 10 min at 65 °C with AMA (solution of 30% ammonium hydroxide/40% aqueous methylamine 1:1 v/v).

Deprotection time depends on oligonucleotide composition and nucleobase protecting groups, and additional modifications.

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General properties

Appearance:	black powder
Molecular weight:	995.11
CAS number:	374591-94-3
Molecular formula:	C₅₅H₆₃N₈O₈P
IUPAC name:	Phosphoramidous acid, bis(1-methylethyl)-, 2-[[2-[bis(4-methoxyphenyl)phenylmethoxy]ethyl][4-[[2-methoxy-5-methyl-4-[(4-methyl-2-nitrophenyl)azo]phenyl]azo]phenyl]amino]ethyl 2-cyanoethyl ester (9CI)
Solubility:	good in acetonitrile
Quality control:	NMR ¹H, ³¹P, HPLC-MS (95%)
Storage conditions:	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.
安全数据表（MSDS）:	下载
	产品规格

Spectral properties

Excitation/absorption maximum, nm:	522
ε, L⋅mol⁻¹⋅cm⁻¹:	27300

Oligo synthesis details

Diluent:	50% DCM in acetonitrile
Coupling conditions:	6 min coupling time; 3 min oxidation time
Cleavage conditions:	ammonia, 2 h at room temperature
Deprotection conditions:	identical to protected nucleobases

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.