AL11430

DMT-locA(bz) Phosphoramidite

configured for ABI

• 经验公式（希尔记法）: C₄₈H₅₂N₇O₈P
• 化学文摘社编号: 206055-79-0
• 分子量: 885.94
• MDL號碼: MFCD09998898
• 分類程式碼代碼: 41116105
• NACRES: NA.51

属性

• 生物源: non-animal source (BSE/TSE no Risk)
• 品質等級: 300
• 產品線: Proligo Reagents
• 化驗: ≥98.0% (³¹P-NMR); ≥98.0% (reversed phase HPLC)
• 形狀: powder
• 雜質: ≤3 wt. % Residual Solvent Content; <0.4% Water Content (Karl Fischer); <0.5% Single unspecified Impurity (reversed phase HPLC)
• 顏色: white to off-white
• 溶解度: soluble, clear, colorless
• 吸收: <0.1 in acetonitrile at 0.2 M
• 適合性: conforms to structure for H-NMR; conforms to structure for LC-MS
• 相容性: configured for ABI
• 儲存溫度: −20°C

说明

一般說明

DMT-locA(bz) Phosphoramidite belongs to the group of LNA phosphoramidite. It is known as DMT-locAdenosine(N6-Benzoyl)- ß-Cyanoethylphosphoramidite. The synthesis cycle for Locked Nucleic Acid (LNA) oligonucleotides consists of the same series of reactions as the cycle that is employed for DNA monomers. However, the rate of coupling for LNA monomers is slower compared to that of DNA monomers (a coupling time of 8 minutes is recommended for LNA monomers compared to 90 seconds for DNA monomers).

With the exception of the LNA monomers, LNA synthesis is accomplished with the same reagents as DNA synthesis. LNA phosphoramidites from Merck are diluted with dry acetonitrile, except for locMeC(bz)-phosphoramidite. This phosphoramidite requires the application of a cosolvent to prevent crystallization from the solution on the synthesizer. Dichloromethane or tetrahydrofuran (THF) can be applied as co-solvents with acetonitrile to completely dissolve locMeC(bz)-phosphoramidite.

特點和優勢

Key Features of LNA Phosphoramidites :

• LNA oligonucleotides are prepared by phosphoramidite chemistry
• Standard DNA synthesizer platforms can be employed. No change is required in the reagents commonly used for DNA synthesis
• To further enhance the hybridization characteristics of LNA, 5-methyl-cytidine is employed instead of cytidine
• LNA monomers are as soluble in acetonitrile as their DNA counterparts (except for the 5-methyl-cytidine derivative, which requires the application of 10-20%, dichloromethane as a co-solvent)
• Mixmer oligonucleotides containing LNA, DNA and/or RNA monomers can be assembled easily
• LNA oligonucleotides with predefined melting temperatures (Tm) can be designed and prepared

其他說明

LNA phosphoramidites from Merck are diluted with dry acetonitrile, except for locMeC(bz)-phosphoramidite. This phosphoramidite requires the application of a cosolvent to prevent crystallization from the solution on the synthesizer. Dichloromethane or tetrahydrofuran(THF) can be applied as co-solvents with acetonitrile to completely dissolve locMeC(bz)-phosphoramidite.

法律資訊

安全信息

• 儲存類別代碼: 11 - Combustible Solids
• 水污染物質分類（WGK）: WGK 3
• 閃點（°F）: Not applicable
• 閃點（°C）: Not applicable