Alkyne-PEG4-phosphoramidite
| 貨號 | 數量 | 價格 | 交貨時間 | 購買此產品 |
|---|---|---|---|---|
| 2779-100mg | 100 mg | $390 | 現貨 | |
| 2779-250mg | 250 mg |
$680
|
現貨 | |
| 2779-1g | 1 g |
$1640
|
現貨 | |
| 2779-5g | 5 g | 請查詢 | 現貨 |
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.AmdU（5-疊氮甲基-2'-去氧尿苷） [AmdU (5-Azidomethyl-2'-deoxyuridine)]
疊氮甲基去氧尿苷 (AmdU) 是一種含疊氮基的核苷，通過細胞內NDA聚合酶摻入到新生DNA中。通過這種方式連接到DNA 上的疊氮基團，隨後可以通過銅催化或張力促進的點擊反應，被炔烴或環炔烴修飾。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. |
| MSDS: | 下載 |
| 產品規格 |
Oligo synthesis details
| Diluent: | acetonitrile |
| Coupling conditions: | standard coupling, identical to normal nucleobases |
| Deprotection conditions: | identical to protected nucleobases |
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