2'-Deoxyuridine CE Phosphoramidite
Oligonucleotide Synthesis, RNA Raw Materials & Modification
Product summary
Quick view
- Product family
- Oligonucleotide Synthesis, RNA Raw Materials & Modification
- MF
- C39H47N4O8P
- MW
- 730.8
- Purity
- 99.75% (HPLC)
2'-Deoxyuridine CE Phosphoramidite is the 2'-deoxyuridine building block for DNA synthesis: 5'-O-(4,4'-dimethoxytrityl)-2'-deoxyuridine bearing a 3'-O-(2-cyanoethyl N,N-diisopropyl)phosphoramidite group. CH65007 is identified by CAS 109389-30-2, molecular formula C39H47N4O8P, molecular weight 730.8, PubChem CID 11061591, and InChIKey ZGJUDTLSWZPIDW-MVFNBKNKSA-N.
Nucleoside phosphoramidites are the coupling monomers used in automated solid-phase oligonucleotide synthesis: the 3'-phosphoramidite is the reactive group that couples to the growing chain, and the acid-labile 5'-DMT is removed at the start of each cycle. Because uracil has no exocyclic amine, no base protecting group is required.
Synonyms
DMT-dU phosphoramidite; 5'-O-DMT-2'-deoxyuridine 3'-CE phosphoramidite
Identity and specifications
| Catalog No. | CH65007 |
| CAS No. | 109389-30-2 |
| Molecular Formula | C39H47N4O8P |
| Molecular Weight | 730.8 |
| PubChem CID | 11061591 |
| InChIKey | ZGJUDTLSWZPIDW-MVFNBKNKSA-N |
| Purity | 99.75% (HPLC) |
Storage conditions
-20 C, dry inert atmosphere
Technical attributes
- Monomer class
- DNA CE phosphoramidite
- Nucleobase
- Uracil
- 5'-O protection
- DMT (dimethoxytrityl)
- Base protection
- Unprotected
- Grade
- N (Normal)
- Packaging
- 100 mg; 250 mg; 500 mg; 1 g; 5 g; 10 g; 25 g; 100 g; 200 g; 1 mL; Custom packaging on request
- Solution concentration
- 10 mM in DMSO (supplied 1 mL solution option)
- Water content
- K.F. <=0.20% w/w
- Physical form
- white to off-white powder
- Stability
- powder: 3 years; supplied solution: 1 year
Application context
- DNA 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 synthesis.
- 5'-DMT 5'-OH protection: the acid-labile 4,4'-dimethoxytrityl group is removed at the start of each chain-elongation cycle.
- No base protection needed: uracil has no exocyclic amine, so this monomer requires no base protecting group.
Related technical resources
Oligonucleotide Modification
Sugar, base, backbone, terminal, and conjugation modifications for ASO, siRNA, guide RNA, aptamer, and research or labeling oligo projects.
Oligonucleotide Synthesis
Support for modified monomers, supports, sulfurizing reagents, cap analogs, and related oligo synthesis inputs.
Public references
- Sustainability Challenges and Opportunities in Oligonucleotide Manufacturing
Journal of Organic Chemistry, 2021
Product-family technical context
- Solid-phase supports for oligonucleotide synthesis
Current Protocols in Nucleic Acid Chemistry, 2013
Product-family technical context
- Deoxynucleoside phosphoramidites—A new class of key intermediates for deoxypolynucleotide synthesis
Tetrahedron Letters, 1981
Product-family technical context
- Synthesis of deoxyoligonucleotides on a polymer support
Journal of the American Chemical Society, 1981
Product-family technical context
- PubChem Compound 11061591
PubChem · CID 11061591
Frequently Asked Questions
Why does the 2'-deoxyuridine phosphoramidite have no base protecting group?
Uracil has no reactive exocyclic amine, so it needs no base protection. The monomer carries only the acid-labile 5'-O-DMT group (removed each cycle) and the 3'-phosphoramidite coupling group.
How does it relate to 5'-O-DMT-2'-deoxyuridine?
It is the phosphoramidite of that nucleoside: the 3'-hydroxyl has been converted to a 2-cyanoethyl N,N-diisopropyl phosphoramidite. The 5'-O-DMT-2'-deoxyuridine precursor is cataloged separately.
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