2'-O-Me Phosphoramidites
DMTr-2'-O-Me-rI-3'-CE-Phosphoramidite
Quick view. We supply DMTr-2'-O-Me-rI-3'-CE-Phosphoramidite as a 2'-O-methyl inosine amidite for wobble-base and degenerate oligonucleotide design. CAS 128219-85-2. Catalog target purity: ≥96%.

Product profile
DMTr-2'-O-Me-rI-3'-CE-Phosphoramidite is classified as protected oligonucleotide phosphoramidite building block (Formula C41H49N6O8P; molecular weight 784.84).
DMTr-2'-O-Me-rI-3'-CE-Phosphoramidite — 2''-O-Methyl Inosine Phosphoramidite is used as a heteroduplex probe in discriminating a single-nucleotide difference in RNA.
For DMTr-2'-O-Me-rI-3'-CE-Phosphoramidite, form: Solid.
Names and search terms
Confirmed or normalized name variants
- 2'-O-METHYL-I CEP
- 2'-O-Methyl Inosine Phosphoramidite
- 5'-O-DMT-2'-O-methylinosine 3'-CE phosphoramidite
- 2'-O-Methyl-5'-O-DMT-Inosine-3'-CE-Phosphoramidite
- 5'-O-(4, 4'-Dimethoxytrityl)-2'-O-methyl-Inosine-3'-CE-Phosphoramidite
- DMT-2'-O-Me-rI-3'-CE-Phosphoramidite
- DMTr-2'-O-Me-rI-3'-2-cyanoethyl phosphoramidite
- 2'-OMe-I Phosphoramidite
Useful catalog search terms
- CAS 128219-85-2
- Protected oligonucleotide phosphoramidite building block
- DMTr/DMT protection
- 2'-O-methyl modification
- phosphoramidite coupling group
- BX-2OMP-0053
- 2'-O-Me Phosphoramidites
Physicochemical data
| Key chemistry motifs | DMTr/DMT protection; 2'-O-methyl modification; phosphoramidite coupling group |
|---|---|
| Boiling point | 869.6±65.0 °C(Predicted) |
| Form | Solid |
| Color | White to off-white |
Release documentation
The current specification defines the analytical method and acceptance criteria; the released lot result is reported on the CoA.
- We release this product against the stated purity specification; the lot-specific CoA provides the result and analytical basis.
Additional HPLC, MS or NMR documentation can be agreed during technical review where available.
Additional application examples
- DMTr-2'-O-Me-rI-3'-CE-Phosphoramidite can be evaluated as a monomer or functional building block in solid-phase oligonucleotide synthesis.
- Typical development work includes coupling-condition screening, deprotection compatibility checks and LC-MS/HPLC characterization of test sequences.
- The material can also support related-analog comparison, impurity-reference preparation and route-development studies.
Product-specific evaluation notes
Potential advantages
- 2′-O-methyl groups are widely used to increase nuclease resistance and modulate hybridization behavior.
Method limitations
- Excessive or poorly positioned substitution can reduce desired enzyme interactions or activity in some assay formats.
These points describe DMTr-2'-O-Me-rI-3'-CE-Phosphoramidite or its named chemical feature. Broader product-family guidance is maintained on the category page.
Related products
4'-O-CH2-phosphate methyl ester-2'-O-Me-rU-3'-CE-Phosphoramidite
2'-O-Me Phosphoramidites · CAS: 2197181-94-3
BX-2OMP-00164'-O-CH₂-phosphate monomethyl ester-2'-O-Me-rU-3'-CE-Phosphoramidite
2'-O-Me Phosphoramidites · CAS: N/A
BX-2OMP-00175'-CH₂-phosphate methyl ester-2'-O-Me-U-3'-CE-Phosphoramidite
2'-O-Me Phosphoramidites · CAS: N/A
BX-2OMP-00185'-POM-(E)-vinyl phosphonate-2'-O-Me-6-Deamino-6-(m-benzenepropanoic acid methyl ester)-rA-3'- CE-Phosphoramidite
2'-O-Me Phosphoramidites · CAS: N/A
BX-2OMP-00195'-POM-(E)-vinyl phosphonate-2'-O-Me-rA(Bz)-3'-CE-Phosphoramidite
2'-O-Me Phosphoramidites · CAS: 2419895-65-9
BX-2OMP-00205'-POM-(E)-vinyl phosphonate-2'-O-Me-rC(Bz)-3'-CE-Phosphoramidite
2'-O-Me Phosphoramidites · CAS: N/A
Frequently asked questions
Can the package size for DMTr-2'-O-Me-rI-3'-CE-Phosphoramidite be customized?
Yes. Share the initial quantity, expected future scale, delivery timeline and packaging preference for review.
What information should be included in a quote request?
Quote catalog number BX-2OMP-0039 and CAS 128219-85-2, the intended research workflow, required quantity and any additional HPLC, MS or NMR documentation needed.
Product-family literature
The publications below provide peer-reviewed context for the 2'-O-Me Phosphoramidites product family and its named chemistry.
