Amino-modified Nucleosides
3'-Azido-3'-deoxy-2-thiouridine
Quick view. 2-Thiouridine derivative bearing a 3'-azido group in place of the 3'-hydroxyl. CAS 2305416-00-4. Catalog target purity: ≥98%. Availability: Inquiry only — contact BX Lab to confirm current availability.
Product profile
3'-Azido-3'-deoxy-2-thiouridine is classified as amino-modified nucleosides (Formula C9H11N5O4S; molecular weight 285.28 g/mol).
3'-Azido-3'-deoxy-2-thiouridine is useful as a bioorthogonal handle for post-synthetic conjugation to fluorophores, affinity tags, surfaces, peptides or other functional payloads.
For 3'-Azido-3'-deoxy-2-thiouridine, 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
Useful catalog search terms
- 2305416-00-4
Physicochemical data
| PubChem CID | 171361593 |
|---|---|
| Nucleoside scaffold | 2-Thiouridine |
| Substitution pattern | 3'-azido-3'-deoxy |
| IUPAC name | 1-[(2R,3R,4S,5S)-4-azido-3-hydroxy-5-(hydroxymethyl)oxolan-2-yl]-2-sulfanylidenepyrimidin-4-one |
| InChIKey | NQPSMKXDEQJIQF-XVFCMESISA-N |
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.
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.
These points describe 3'-Azido-3'-deoxy-2-thiouridine 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'-Azido-3'-deoxy-2-thiouridine 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-0187 and CAS 2305416-00-4, 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
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