Morpholino T Subunit (PMO)
Oligonucleotide Synthesis, RNA Raw Materials & Modification
Product summary
Quick view
- Product family
- Oligonucleotide Synthesis, RNA Raw Materials & Modification
- MF
- C31H34ClN4O5P
- MW
- 609.0
- Purity
- >=98.0% (HPLC)
Morpholino T Subunit is the thymine building block for phosphorodiamidate morpholino oligomer (PMO) synthesis. It is a morpholine ring bearing a thymine base, a trityl-protected morpholine nitrogen, and an activated phosphorodiamidochloridate coupling group. CH65044 is identified by CAS 956139-30-3, molecular formula C31H34ClN4O5P, molecular weight 609.0, PubChem CID 16662134, and InChIKey DIRYYUMNQFXZQD-ZFXAPSKHSA-N.
PMOs are nonionic DNA analogs in which a morpholine ring replaces the ribose and a phosphorodiamidate linkage replaces the phosphate. This activated subunit provides the thymine morpholino subunit identity for PMO assembly. Because thymine has no exocyclic amine, no base protecting group is required.
Synonyms
PMO thymine subunit; morpholino thymidine chlorophosphoramidate subunit
Identity and specifications
| Catalog No. | CH65044 |
| CAS No. | 956139-30-3 |
| Molecular Formula | C31H34ClN4O5P |
| Molecular Weight | 609.0 |
| PubChem CID | 16662134 |
| InChIKey | DIRYYUMNQFXZQD-ZFXAPSKHSA-N |
| Purity | >=98.0% (HPLC) |
Storage conditions
-20 C
Technical attributes
- Monomer class
- PMO morpholino subunit
- Nucleobase
- Thymine
- Backbone scaffold
- Morpholine
- Activated group
- Phosphorodiamidochloridate
- Grade
- N (Normal)
- Packaging
- 100 mg; 250 mg; 1 g; 5 g; Custom packaging on request
- Water content
- <=0.5%
- Physical form
- white to off-white powder
- Stability
- stable under recommended storage conditions; avoid moisture
Application context
- PMO thymine building block: provides the thymine morpholino subunit identity for phosphorodiamidate morpholino oligomer (PMO) synthesis.
- Morpholino backbone: the morpholine ring replaces the ribose and a phosphorodiamidate linkage replaces the phosphate, giving a nonionic oligomer.
- Trityl-protected, activated subunit: the morpholine nitrogen is trityl-protected and the phosphorodiamidochloridate is the reactive coupling group; thymine needs no base protection.
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 16662134
PubChem · CID 16662134
Frequently Asked Questions
What is a morpholino (PMO) subunit?
It is a building block for phosphorodiamidate morpholino oligomers (PMOs), nonionic DNA analogs in which a morpholine ring replaces the ribose and phosphorodiamidate linkages replace the phosphates. This product provides the thymine morpholino subunit identity.
Why does the thymine subunit have no base protecting group?
Thymine has no reactive exocyclic amine, so it needs no base protection. The subunit carries a trityl-protected morpholine nitrogen and the reactive phosphorodiamidochloridate coupling group.
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