Amino-modified Nucleosides
3'-beta-Azido-2',3'-dideoxyuridine
Quick view. 3'-beta-Azido-2',3'-dideoxyuridine is an azido-modified dideoxyuridine with CAS 101039-96-7. CAS 101039-96-7. Catalog target purity: ≥98%. Availability: Inquiry only — contact BX Lab to confirm current availability.
Product profile
3'-beta-Azido-2',3'-dideoxyuridine is classified as azido-modified dideoxyuridine (Formula C9H11N5O4; molecular weight 253.22 (calculated from molecular formula)).
3'-beta-Azido-2',3'-dideoxyuridine is useful as a bioorthogonal handle for post-synthetic conjugation to fluorophores, affinity tags, surfaces, peptides or other functional payloads.
For 3'-beta-Azido-2',3'-dideoxyuridine, copper-catalyzed, copper-free or inverse-electron-demand click conditions can affect sensitive oligonucleotides differently; residual metal, solvent and purification strategy should be controlled.
Names and search terms
Confirmed or normalized name variants
- AZddU (threo)
Useful catalog search terms
- CAS 101039-96-7
- Amino-modified Nucleosides
Physicochemical data
| InChI | InChI=1S/C9H11N5O4/c10-13-12-5-3-8(18-6(5)4-15)14-2-1-7(16)11-9(14)17/h1-2,5-6,8,15H,3-4H2,(H,11,16,17)/t5-,6-,8-/m1/s1 |
|---|---|
| InChIKey | ZSNNBSPEFVIUDS-ATRFCDNQSA-N |
| SMILES | [N-]=[N+]=N[C@@H]1C[C@H](n2ccc(O)nc2=O)O[C@@H]1CO |
| Structural features | Uridine analogue with 2',3'-dideoxy sugar and 3'-azido substitution |
Release documentation
The current specification defines the analytical method and acceptance criteria; the released lot result is reported on the CoA.
Additional HPLC, MS or NMR documentation can be agreed during technical review where available.
Product-specific evaluation notes
Potential advantages
- Click-compatible handles separate oligonucleotide synthesis from late-stage labeling, which helps screen multiple payloads from a common intermediate.
- Reactive handles make the product adaptable across dye-labeling, surface-coupling and ligand-conjugation workflows.
- Dideoxy analogs provide clear extension-stop behavior when accepted by a polymerase.
Method limitations
- Copper-catalyzed, copper-free or inverse-electron-demand click conditions can affect sensitive oligonucleotides differently; residual metal, solvent and purification strategy should be controlled.
- Functional handles may require orthogonal protection, pH control and rapid purification to avoid hydrolysis, oxidation or cross-reaction.
- Polymerase acceptance varies; absence of a 3′-OH prevents further extension after incorporation.
These points describe 3'-beta-Azido-2',3'-dideoxyuridine or its named chemical feature. Broader product-family guidance is maintained on the category page.
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Frequently asked questions
Can the package size for 3'-beta-Azido-2',3'-dideoxyuridine 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-AMN-0134 and CAS 101039-96-7, the intended research workflow, required quantity and any additional HPLC, MS or NMR documentation needed.
Feature and workflow background
These publications discuss a broader chemistry feature or workflow identified from the catalog name or product family. They are background reading only, not evidence for the exact BX Lab product, supplied form, lot specification, availability or performance.
Technology platforms
Catalog-derived platform membership for navigating related chemistry and verifiable product sets.