Alkyne-PEG4-phosphoramidite
| 目录号 | 数量 | 价格 | 提前通知时间 | 购买此产品 |
|---|---|---|---|---|
| 2779-100mg | 100 mg | $390 | 现货 | |
| 2779-250mg | 250 mg |
$680
|
现货 | |
| 2779-1g | 1 g |
$1640
|
现货 | |
| 2779-5g | 5 g | 请查询 | 现货 |
Alkyne-PEG4-phosphoramidite is a tetraethylene glycol phosphoramidite with a terminal triple bond that can be used for the synthesis of various functionalized oligonucleotides. An alkyne fragment in the resulting molecules reacts in Click Chemistry reactions with azide-containing compounds in the presence of copper (I) salts to produce various oligonucleotide conjugates, such as those with dyes, peptides, or glycans. The yield of resulting compounds is rather high, their isolation and purification are often easier than those of molecules produced by the interaction of amino-modified oligonucleotides with activated esters such as those of dyes. Click Chemistry reactions are bioorthogonal because neither terminal alkyne nor azide functional groups usually are found in biomolecules.
A tetraethylene glycol linker in phosphoramidite gives it higher hydrophilic properties and reduces toxicity and immunogenicity of produced conjugates.
Recommendations for using the reagent:
Solvent: Acetonitrile.
Recommended condensation time: Standard, as for natural nucleoside phosphoramidites.
It is recommended to use standard deprotection conditions.
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TFA-aminolinker C6 phosphoramidite
Trifluoroacetyl protected aminolink C6 phosphoramidite for the synthesis of amino-modified oligonucleotides.Cyanine 5.5叠氮化物 (Cyanine5.5 azide)
用于点击化学的远红/近红外荧光 Cyanine5.5 染料衍生物。General properties
| Appearance: | colorless or yellow oil |
| Molecular weight: | 432.49 |
| CAS number: | 1682657-14-2 |
| Molecular formula: | C20H37N2O6P |
| IUPAC name: | 2-cyanoethyl (3,6,9,12-tetraoxapentadec-14-yn-1-yl) diisopropylphosphoramidite |
| Solubility: | good in acetonitrile and dichloromethane |
| Quality control: | NMR 1H and 31P, 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. Desiccate. |
| 安全数据表（MSDS）: | 下载 |
| 产品规格 |
Oligo synthesis details
| Diluent: | acetonitrile |
| Coupling conditions: | standard coupling, identical to normal nucleobases |
| Deprotection conditions: | identical to protected nucleobases |
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