5-Ethynyluridine

Also known as: 5-Ethynyluridine, 5-Ethynyl uridine, 5-EU, 5-Ethynyl Uridine (EU), 5-Ethynyluridine (5-EU), Uridine, 5-ethynyl-, 1-((2R,3R,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)-5-ethynylpyrimidine-2,4(1H,3H)-dione, 5-Ethynyl-1-β-L-ribofuranosyl-2,4(1H,3H)-pyrimidinedione

5-Ethynyluridine (CAS 69075-42-9) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C11H12N2O6 and a molecular weight of 268.22300 g/mol. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 69075-42-9
Jingsj CID: J-1958683-5
Molecular Formula: C₁₁H₁₂N₂O₆
Molecular Weight: 268.22300 g/mol
Category: Aliphatic Hydrocarbons
Last updated: 8/21/2026

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Physicochemical Properties

Exact Mass	268.07000
PSA	124.78000

Activity & Biological Data

Additional Information	[1]. Van't Sant LJ, et al. In vivo 5-ethynyluridine (EU) labelling detects reduced transcription in Purkinje cell degeneration mouse mutants, but can itself induce neurodegeneration. Acta Neuropathol Commun. 2021 May 21;9(1):94. [2]. Jao CY, et al. Exploring RNA transcription and turnover in vivo by using click chemistry. Proc Natl Acad Sci U S A. 2008 Oct 14;105(41):15779-84.

Frequently Asked Questions

What is the CAS number of 5-Ethynyluridine?

The CAS number of 5-Ethynyluridine is 69075-42-9.

What are the molecular formula and molecular weight of 5-Ethynyluridine?

5-Ethynyluridine has molecular formula C11H12N2O6 and molecular weight 268.22300 g/mol.

What are the upstream and downstream products of 5-Ethynyluridine?

For 5-Ethynyluridine, Upstream Products: uridine triacetate, Uridine.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated: 8/21/2026

How to cite: Jingsj. "5-Ethynyluridine (CAS 69075-42-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1958683-5 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.