5-Ethynyl-2'-deoxyuridine

Also known as: EdU, 5-EdU, 2'-Deoxy-5-ethynyluridine, 1-(2-deoxypentofuranosyl)-5-ethynylpyrimidine-2,4(1H,3H)-dione, 5-ethynyl-1-[(2R,4S,5R)-4-hydroxy-5-(hydroxymethyl)oxolan-2-yl]pyrimidine-2,4-dione

5-Ethynyl-2'-deoxyuridine (CAS 61135-33-9) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C11H12N2O5 and a molecular weight of 252.22300 g/mol. Key properties include a melting point of 199 °C and a density of 1.55g/cm3. It is classified under GHS with signal word Danger and hazard statements H340 and H361 — Suspected of damaging fertility or the unborn child. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 61135-33-9
Jingsj CID: J-1965563-1
Molecular Formula: C₁₁H₁₂N₂O₅
Molecular Weight: 252.22300 g/mol
Category: Aliphatic Hydrocarbons
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	199 °C
Density	1.55g/cm3
Exact Mass	252.07500
PSA	104.55000
Refractive Index	1.644

GHS Safety & Compliance

Health HazardSignal word: Danger

H340
H361 — Suspected of damaging fertility or the unborn child

Activity & Biological Data

Target	Alkyl-Chain
Additional Information	[1]. An S, et al. Small-molecule PROTACs: An emerging and promising approach for the development of targeted therapy drugs. EBioMedicine. 2018 Oct;36:553-562

Frequently Asked Questions

What is the CAS number of 5-Ethynyl-2'-deoxyuridine?

The CAS number of 5-Ethynyl-2'-deoxyuridine is 61135-33-9.

What are the molecular formula and molecular weight of 5-Ethynyl-2'-deoxyuridine?

5-Ethynyl-2'-deoxyuridine has molecular formula C11H12N2O5 and molecular weight 252.22300 g/mol.

Is 5-Ethynyl-2'-deoxyuridine hazardous?

5-Ethynyl-2'-deoxyuridine has GHS signal word Danger and hazard statements H340; H361 — Suspected of damaging fertility or the unborn child.

What are the upstream and downstream products of 5-Ethynyl-2'-deoxyuridine?

For 5-Ethynyl-2'-deoxyuridine, Upstream Products: idoxuridine, Trimethylsilylacetylene, 5-Hydroxy-2'-deoxyuridine; Downstream Products: Edoxudine.

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-Ethynyl-2'-deoxyuridine (CAS 61135-33-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1965563-1 (accessed 2026-11-09).

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