4-Methoxy-2(5H)-furanone

4-甲氧基-2(5H)-呋喃酮

Also known as: 4-Methoxy-5H-furan-2-one, Methyl tetronate, 3-methoxy-2H-furan-5-one, MFCD00071565

4-Methoxy-2(5H)-furanone (CAS 69556-70-3) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C5H6O3 and a molecular weight of 114.09900 g/mol. It is also known as 4-Methoxy-5H-furan-2-one, Methyl tetronate and 3-methoxy-2H-furan-5-one. Key properties include a melting point of 62-64 °C(lit.), a boiling point of 105 °C0.5 mm Hg(lit.), a density of 1.19 g/cm3 and a flash point of 120.4ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
69556-70-3
Jingsj CID
J-30138-5
Molecular Formula
C5H6O3
Chinese Name
4-甲氧基-2(5H)-呋喃酮
Molecular Weight
114.09900 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point62-64 °C(lit.)
Boiling Point105 °C0.5 mm Hg(lit.)
Density1.19 g/cm3
Flash Point120.4ºC

Frequently Asked Questions

What is the CAS number of 4-Methoxy-2(5H)-furanone?

The CAS number of 4-Methoxy-2(5H)-furanone is 69556-70-3.

What are the molecular formula and molecular weight of 4-Methoxy-2(5H)-furanone?

4-Methoxy-2(5H)-furanone has molecular formula C5H6O3 and molecular weight 114.09900 g/mol.

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

Last updated:

How to cite: Jingsj. "4-Methoxy-2(5H)-furanone (CAS 69556-70-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-30138-5 (accessed 2026-10-22).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.