5-Ethynyl uridine
- CAS NO.:69075-42-9
- Empirical Formula: C11H12N2O6
- Molecular Weight: 268
- MDL number: MFCD00876719
- EINECS: 500-100-4
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-04-22 18:57:36
What is 5-Ethynyl uridine?
Description
5-Ethynyl uridine (5-EU) is an alkyne-containing metabolic labeling reagent used to detect global RNA transcription temporally and spatially in both in-vitro and in-vivo with the modified nucleotide. The alkyne handler can be used for subsequent ligation to azide-containing molecules through a highly efficient click chemistry reaction.
The Uses of 5-Ethynyl uridine
5-Ethynyluridine is used to help detect RNA synthesis in cells by its biosynthetic incorporation into newly transcribed RNA.
The Uses of 5-Ethynyl uridine
This alkyne-bearing metabolic labeling reagent can be used to measure RNA synthesis in proliferating cells. Once fed to cells, this nucleoside is incorporated during active RNA synthesis and can then be detected using a copper-catalyzed click reaction with fluorescent dyes. The cells can then be analysed by fluorescence imaging, flow cytometry or high content imaging analysis.
Storage
Store at -20°C
Properties of 5-Ethynyl uridine
| Melting point: | >164oC (dec.) |
| Density | 1.67±0.1 g/cm3(Predicted) |
| storage temp. | -20°C |
| solubility | DMSO (Slightly), Methanol (Very Slightly, Heated, Sonicated) |
| form | Solid |
| pka | 8.29±0.10(Predicted) |
| color | Off-White to Pale Beige |
Safety information for 5-Ethynyl uridine
| Signal word | Warning |
| Pictogram(s) |
![]() Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H302:Acute toxicity,oral H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation |
| Precautionary Statement Codes |
P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. |
Computed Descriptors for 5-Ethynyl uridine
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