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Oligonucleotide Synthesis, RNA Raw Materials & Modification

2'-O-TBDMS-Guanosine (dmf) CE Phosphoramidite

Oligonucleotide Synthesis, RNA Raw Materials & Modification

製品番号CH65015CAS番号149559-87-5純度>=98.0% (HPLC)
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製品概要

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製品ファミリー
Oligonucleotide Synthesis, RNA Raw Materials & Modification
分子式
C49H67N8O8PSi
分子量
955.2
純度
>=98.0% (HPLC)

2'-O-TBDMS-Guanosine (dmf) CE Phosphoramidite is the fully protected guanosine building block for RNA synthesis: 5'-O-(4,4'-dimethoxytrityl)-2'-O-(tert-butyldimethylsilyl)-N2-dimethylformamidine-guanosine bearing a 3'-O-(2-cyanoethyl N,N-diisopropyl)phosphoramidite group. CH65015 is identified by CAS 149559-87-5, molecular formula C49H67N8O8PSi, molecular weight 955.2, and supplier-resolved stereochemical InChIKey RQXRLANMGPTUJP-MVEMIKKVSA-N.

Nucleoside phosphoramidites are the coupling monomers used in automated solid-phase RNA synthesis: the 3'-phosphoramidite is the reactive group that couples to the growing chain, the acid-labile 5'-DMT is removed at the start of each cycle, the 2'-O-TBDMS protects the ribose 2'-hydroxyl, and the N2-dmf base group is removed at final deprotection.

別名

DMT-2'-O-TBDMS-rG(dmf) phosphoramidite; 5'-O-DMT-2'-O-TBDMS-N2-dmf-guanosine 3'-CE phosphoramidite

同定情報と仕様

Catalog No.CH65015
CAS No.149559-87-5
Molecular FormulaC49H67N8O8PSi
Molecular Weight955.2
PubChem CID169545671 (non-stereochemical cross-reference)
Stereochemical InChIKeyRQXRLANMGPTUJP-MVEMIKKVSA-N
Purity>=98.0% (HPLC)

保管条件

-20 C; dry, inert atmosphere

技術属性

Monomer class
RNA CE phosphoramidite
Nucleobase
Guanine
2'-O protection
TBDMS (tert-butyldimethylsilyl)
Base protection
N2-Dimethylaminomethylene (dmf)
Grade
N (Normal)
Packaging
100 mg; 250 mg; 500 mg; 1 g; 5 g; 10 g; 25 g; 100 g; 200 g; 1 kg; 5 kg; Custom packaging on request
Water content
K.F. <=0.20% w/w
Physical form
white to light yellow powder

用途情報

  • RNA coupling monomer: the 3'-O-(2-cyanoethyl N,N-diisopropyl)phosphoramidite is the reactive group that couples to the growing oligonucleotide chain in automated solid-phase RNA synthesis.
  • 5'-DMT + 2'-O-TBDMS protection: the acid-labile 5'-DMT is removed each cycle, while the 2'-O-TBDMS group protects the ribose 2'-hydroxyl during synthesis.
  • N2-dmf base protection: the dimethylformamidine group masks the guanine exocyclic amine during synthesis and is removed at final deprotection.

関連技術資料

公開情報源

よくある質問

What are the four functional groups on this RNA amidite?

A 3'-O-(2-cyanoethyl N,N-diisopropyl)phosphoramidite (the reactive coupling group), an acid-labile 5'-O-DMT group (removed each cycle), a 2'-O-TBDMS group (protects the ribose 2'-hydroxyl), and an N2-dimethylformamidine (dmf) base protection (removed at final deprotection).

How does it differ from the 2'-O-TBDMS-rG(iBu) phosphoramidite?

Both are 2'-O-TBDMS guanosine RNA amidites, but this one uses an N2-dimethylformamidine (dmf) base protection rather than isobutyryl. The isobutyryl amidite is cataloged separately.

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