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生物来源
non-animal source (BSE/TSE no Risk)
质量水平
产品线
Proligo Reagents
检测方案
≥98.0% (31P-NMR)
≥98.0% (reversed phase HPLC)
形式
powder
杂质
≤3 wt. % Residual Solvent Content
<0.4% Water Content (Karl Fischer)
<0.5% Single unspecified Impurity (reversed phase HPLC)
颜色
white to off-white
溶解性
soluble, clear, colorless
吸光度
<0.1 in acetonitrile at 0.2 M
适用性
conforms to structure for H-NMR
conforms to structure for LC-MS
相容性
configured for ABI
储存温度
−20°C
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一般描述
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.
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.
特点和优势
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
其他说明
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.
法律信息
WGK
WGK 3
闪点(°F)
Not applicable
闪点(°C)
Not applicable
法规信息
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